technician license course€¦ · am/ssb/cw modes. •required for ... multiband transceiver....
TRANSCRIPT
![Page 1: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/1.jpg)
Technician LicenseCourse
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Technician License Course
Chapter 5
Lesson Plan Module 11
Transmitters, Receivers
and Transceivers
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Generalized Transceiver Categories
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Generalized Transceiver Categories
•Mobile VHF/UHF FM
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Generalized Transceiver Categories
•Mobile VHF/UHF FM
•Single Band VHF or UHF FM
![Page 6: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/6.jpg)
Generalized Transceiver Categories
•Mobile VHF/UHF FM
•Single Band VHF or UHF FM
•Dual Band VHF/UHF FM
![Page 7: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/7.jpg)
Generalized Transceiver Categories
•Mobile VHF/UHF FM
•Single Band VHF or UHF FM
•Dual Band VHF/UHF FM
•All Band HF and VHF/UHF
![Page 8: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/8.jpg)
Generalized Transceiver Categories
•Mobile VHF/UHF FM
•Single Band VHF or UHF FM
•Dual Band VHF/UHF FM
•All Band HF and VHF/UHF
•Multimode VHF/UHF CW/SSB/FM
![Page 9: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/9.jpg)
Generalized Transceiver Categories
•Mobile VHF/UHF FM
•Single Band VHF or UHF FM
•Dual Band VHF/UHF FM
•All Band HF and VHF/UHF
•Multimode VHF/UHF CW/SSB/FM
•Handheld (HT)
![Page 10: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/10.jpg)
SingleBand Mobile
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SingleBand Mobile•Singleband, 2 meter is a good starter radio.
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SingleBand Mobile•Singleband, 2 meter is a good starter radio.
•Operates from 13.8 volts dc, requires external power supply or car battery.
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SingleBand Mobile•Singleband, 2 meter is a good starter radio.
•Operates from 13.8 volts dc, requires external power supply or car battery.
•Requires an external antenna.
![Page 14: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/14.jpg)
SingleBand Mobile•Singleband, 2 meter is a good starter radio.
•Operates from 13.8 volts dc, requires external power supply or car battery.
•Requires an external antenna.
•Can be operated mobile or as a base station.
![Page 15: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/15.jpg)
SingleBand Mobile•Singleband, 2 meter is a good starter radio.
•Operates from 13.8 volts dc, requires external power supply or car battery.
•Requires an external antenna.
•Can be operated mobile or as a base station.
•Limited to frequency modulation (FM) and usually either 2 meters or 70 cm bands.
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SingleBand Mobile•Singleband, 2 meter is a good starter radio.
•Operates from 13.8 volts dc, requires external power supply or car battery.
•Requires an external antenna.
•Can be operated mobile or as a base station.
•Limited to frequency modulation (FM) and usually either 2 meters or 70 cm bands.
•Up to approximately 50 watts output.
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DualBand Mobile
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DualBand Mobile
•Same as the singleband transceiver but includes additional band(s).
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DualBand Mobile
•Same as the singleband transceiver but includes additional band(s).
•Most common are 2 meter and 70 cm bands.
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DualBand Mobile
•Same as the singleband transceiver but includes additional band(s).
•Most common are 2 meter and 70 cm bands.
•Could add 6 meters, 222 MHz or 1.2 GHz.
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DualBand Mobile
•Same as the singleband transceiver but includes additional band(s).
•Most common are 2 meter and 70 cm bands.
•Could add 6 meters, 222 MHz or 1.2 GHz.
•Might have separate antenna connections for each band or a single connection for a dualband antenna
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Multimode Transceiver
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Multimode Transceiver•Nearly all HF rigs are multimode.
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Multimode Transceiver•Nearly all HF rigs are multimode.
•VHF multimode operates on FM plus AM/SSB/CW modes.
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Multimode Transceiver•Nearly all HF rigs are multimode.
•VHF multimode operates on FM plus AM/SSB/CW modes.
•Required for “weaksignal” operation on VHF/UHF
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Multimode Transceiver•Nearly all HF rigs are multimode.
•VHF multimode operates on FM plus AM/SSB/CW modes.
•Required for “weaksignal” operation on VHF/UHF
•More features add complexity and cost.
![Page 27: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/27.jpg)
Multimode Transceiver•Nearly all HF rigs are multimode.
•VHF multimode operates on FM plus AM/SSB/CW modes.
•Required for “weaksignal” operation on VHF/UHF
•More features add complexity and cost.
•More flexibility will allow you to explore new modes as you gain experience.
![Page 28: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/28.jpg)
Multiband Transceiver
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Multiband Transceiver
•Covers many bands – usually refers to coverage of HF + VHF/UHF.
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Multiband Transceiver
•Covers many bands – usually refers to coverage of HF + VHF/UHF.
•Also covers all modes.
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Multiband Transceiver
•Covers many bands – usually refers to coverage of HF + VHF/UHF.
•Also covers all modes.
•Frequently 100 watts on HF, some power limitations on high bands (25–50 watts).
![Page 32: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/32.jpg)
Multiband Transceiver
•Covers many bands – usually refers to coverage of HF + VHF/UHF.
•Also covers all modes.
•Frequently 100 watts on HF, some power limitations on high bands (25–50 watts).
•Larger units have internal power supplies, smaller units need external power supply.
![Page 33: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/33.jpg)
Handheld (HT) Transceiver
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Handheld (HT) Transceiver
•Small handheld FM units.
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Handheld (HT) Transceiver
•Small handheld FM units.
•Can be single band or dual band.
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Handheld (HT) Transceiver
•Small handheld FM units.
•Can be single band or dual band.
•Limited power (usually 5 watts or less).
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Handheld (HT) Transceiver
•Small handheld FM units.
•Can be single band or dual band.
•Limited power (usually 5 watts or less).
• Includes power (battery) and antenna in one package.
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Handheld (HT) Transceiver
•Small handheld FM units.
•Can be single band or dual band.
•Limited power (usually 5 watts or less).
• Includes power (battery) and antenna in one package.
•Often purchased as a starter rig but low power limits range.
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Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
![Page 40: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/40.jpg)
Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
–Some can receive outside the ham bands, such as aircraft, commercial FM broadcast, etc.
![Page 41: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/41.jpg)
Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
–Some can receive outside the ham bands, such as aircraft, commercial FM broadcast, etc.
•Very portable and selfcontained.
![Page 42: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/42.jpg)
Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
–Some can receive outside the ham bands, such as aircraft, commercial FM broadcast, etc.
•Very portable and selfcontained.
–Internal microphone and speaker.
![Page 43: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/43.jpg)
Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
–Some can receive outside the ham bands, such as aircraft, commercial FM broadcast, etc.
•Very portable and selfcontained.
–Internal microphone and speaker.
–Rubber duck antenna.
![Page 44: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/44.jpg)
Handheld (HT) Transceiver•Single, dual and multiband versions (with increasing cost and complexity).
–Some can receive outside the ham bands, such as aircraft, commercial FM broadcast, etc.
•Very portable and selfcontained.
–Internal microphone and speaker.
–Rubber duck antenna.
–Battery powered.
![Page 45: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/45.jpg)
Handheld (HT) Transceiver
•Extra battery packs
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Handheld (HT) Transceiver
•Extra battery packs
•AA cell pack useful in emergencies
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Handheld (HT) Transceiver
•Extra battery packs
•AA cell pack useful in emergencies
•Dropin, fast charger
![Page 48: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/48.jpg)
Handheld (HT) Transceiver
•Extra battery packs
•AA cell pack useful in emergencies
•Dropin, fast charger
•Extended antenna
![Page 49: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/49.jpg)
Handheld (HT) Transceiver
•Extra battery packs
•AA cell pack useful in emergencies
•Dropin, fast charger
•Extended antenna
•External microphone and speaker
![Page 50: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/50.jpg)
Handheld (HT) Transceiver
•Extra battery packs
•AA cell pack useful in emergencies
•Dropin, fast charger
•Extended antenna
•External microphone and speaker
•Headset
![Page 51: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/51.jpg)
SidebySideSingle Band Dual Band Multimode Multiband Handheld
Freq Agility Limited Medium Medium Full Limited
Functionality Limited Limited Full Full Limited
Ease of Use Easy Medium Medium Difficult Easy
Programming Easy Easy Medium Challenging Easy/Medium
Power Low Low Medium High Low
Cost Low Modest High High Low
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Rig Vocabulary
•We will now go through some jargon and vocabulary specific to the receive and transmit
functions and controls of a transceiver.
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Band and Frequency Selection
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Band and Frequency Selection•Fundamental to all amateur transceivers
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Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
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Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
•Memories can generally store:
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Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
•Memories can generally store:
• Frequency
![Page 58: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/58.jpg)
Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
•Memories can generally store:
• Frequency
• Mode
![Page 59: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/59.jpg)
Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
•Memories can generally store:
• Frequency
• Mode
• Filter and similar settings
![Page 60: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/60.jpg)
Band and Frequency Selection•Fundamental to all amateur transceivers
•Can set by VFO (continuously variable) or by keypad “direct” entry
•Memories can generally store:
• Frequency
• Mode
• Filter and similar settings
• Alphanumeric labels
![Page 61: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/61.jpg)
Transmitter Controls and Functions
![Page 62: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/62.jpg)
Transmitter Controls and Functions•Main tuning display (both TX and RX):
![Page 63: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/63.jpg)
Transmitter Controls and Functions•Main tuning display (both TX and RX):
–Controls the frequency selection via the variable frequency oscillator (VFO).
![Page 64: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/64.jpg)
Transmitter Controls and Functions•Main tuning display (both TX and RX):
–Controls the frequency selection via the variable frequency oscillator (VFO).
–Frequency can be set with a knob or keypad or programmed channels.
![Page 65: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/65.jpg)
Transmitter Controls and Functions•Main tuning display (both TX and RX):
–Controls the frequency selection via the variable frequency oscillator (VFO).
–Frequency can be set with a knob or keypad or programmed channels.
–Variable frequency step size (tuning rate, resolution).
![Page 66: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/66.jpg)
Transmitter Controls and Functions•Main tuning display (both TX and RX):
–Controls the frequency selection via the variable frequency oscillator (VFO).
–Frequency can be set with a knob or keypad or programmed channels.
–Variable frequency step size (tuning rate, resolution).
–Rigs can usually store the information for two operating frequencies (VFO A and VFO B).
![Page 67: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/67.jpg)
Transmitter Controls and Functions
•Mode selector (both TX and RX for multimode rigs).
![Page 68: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/68.jpg)
Transmitter Controls and Functions
•Mode selector (both TX and RX for multimode rigs).
–AM/FM/SSB (LSB or USB)
![Page 69: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/69.jpg)
Transmitter Controls and Functions
•Mode selector (both TX and RX for multimode rigs).
–AM/FM/SSB (LSB or USB)
–CW
![Page 70: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/70.jpg)
Transmitter Controls and Functions
•Mode selector (both TX and RX for multimode rigs).
–AM/FM/SSB (LSB or USB)
–CW
–Data (RTTY or PSK)
![Page 71: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/71.jpg)
Transmitter Controls and Functions
•Mode selector (both TX and RX for multimode rigs).
–AM/FM/SSB (LSB or USB)
–CW
–Data (RTTY or PSK)
•Could be automatic based on recognized band plan.
![Page 72: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/72.jpg)
Transmitter Controls and Functions•Microphone controls
![Page 73: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/73.jpg)
Transmitter Controls and Functions•Microphone controls–Gain
![Page 74: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/74.jpg)
Transmitter Controls and Functions•Microphone controls–Gain•Controls transmitter sensitivity to your voice
![Page 75: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/75.jpg)
Transmitter Controls and Functions•Microphone controls–Gain•Controls transmitter sensitivity to your voice
–Speech Compressor or Speech Processor
![Page 76: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/76.jpg)
Transmitter Controls and Functions•Microphone controls–Gain•Controls transmitter sensitivity to your voice
–Speech Compressor or Speech Processor•Increases microphone gain at lower sound levels to increase overall signal strength or “punch”
![Page 77: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/77.jpg)
Transmitter Controls and Functions
–Too much gain or compression can cause problems
![Page 78: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/78.jpg)
Transmitter Controls and Functions
–Too much gain or compression can cause problems•Splatter
![Page 79: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/79.jpg)
Transmitter Controls and Functions
–Too much gain or compression can cause problems•Splatter•Overdeviation
![Page 80: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/80.jpg)
Transmitter Controls and Functions
–Too much gain or compression can cause problems•Splatter•Overdeviation•Overmodulation
![Page 81: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/81.jpg)
Transmitter Controls and Functions
•Automatic Level Control (ALC)
![Page 82: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/82.jpg)
Transmitter Controls and Functions
•Automatic Level Control (ALC)
–Automatically limits speech modulation, reducing transmitter overdrive
![Page 83: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/83.jpg)
Transmitter Controls and Functions
•Automatic Level Control (ALC)
–Automatically limits speech modulation, reducing transmitter overdrive
–Causes some speech distortion
![Page 84: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/84.jpg)
Transmitter Controls and Functions
•Automatic Level Control (ALC)
–Automatically limits speech modulation, reducing transmitter overdrive
–Causes some speech distortion
–Do NOT use for data modes like PSK
![Page 85: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/85.jpg)
Transmitter Controls and Functions
•Automatic Level Control (ALC)
–Automatically limits speech modulation, reducing transmitter overdrive
–Causes some speech distortion
–Do NOT use for data modes like PSK
•Also prevents overdrive to external power amplifier
![Page 86: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/86.jpg)
Microphones and Keys
![Page 87: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/87.jpg)
Microphones and Keys•Microphones (mic)
![Page 88: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/88.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
![Page 89: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/89.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
![Page 90: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/90.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
•Preamplified desk mics
![Page 91: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/91.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
•Preamplified desk mics
–Speakermics
![Page 92: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/92.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
•Preamplified desk mics
–Speakermics
–Headsets or boomsets
![Page 93: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/93.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
•Preamplified desk mics
–Speakermics
–Headsets or boomsets
–Internal mics
![Page 94: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/94.jpg)
Microphones and Keys•Microphones (mic)
–Hand mics
–Desk mics
•Preamplified desk mics
–Speakermics
–Headsets or boomsets
–Internal mics
•Speak across the mic, not into the mic
![Page 95: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/95.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
![Page 96: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/96.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
–PushtoTalk (PTT)
![Page 97: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/97.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
–PushtoTalk (PTT)
–VoiceOperated Transmission (VOX)
![Page 98: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/98.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
–PushtoTalk (PTT)
–VoiceOperated Transmission (VOX)
•VOX Gain
![Page 99: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/99.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
–PushtoTalk (PTT)
–VoiceOperated Transmission (VOX)
•VOX Gain
•VOX Delay
![Page 100: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/100.jpg)
Microphones and Keys•Transmitter ON/OFF or “keying”
–PushtoTalk (PTT)
–VoiceOperated Transmission (VOX)
•VOX Gain
•VOX Delay
•AntiVOX
![Page 101: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/101.jpg)
Microphones and Keys–Key jack
![Page 102: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/102.jpg)
Microphones and Keys–Key jack
–ManuallyOperating Transmission (MOX or SEND varies with manufacturer)
![Page 103: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/103.jpg)
Microphones and Keys–Key jack
–ManuallyOperating Transmission (MOX or SEND varies with manufacturer)
•Morse code
![Page 104: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/104.jpg)
Microphones and Keys–Key jack
–ManuallyOperating Transmission (MOX or SEND varies with manufacturer)
•Morse code
–Straight key
![Page 105: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/105.jpg)
Microphones and Keys–Key jack
–ManuallyOperating Transmission (MOX or SEND varies with manufacturer)
•Morse code
–Straight key
–Electronic keyer and paddle
![Page 106: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/106.jpg)
Microphones and Keys–Key jack
–ManuallyOperating Transmission (MOX or SEND varies with manufacturer)
•Morse code
–Straight key
–Electronic keyer and paddle
–Semiautomatic (Bug)
![Page 107: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/107.jpg)
Receiver Controls and Functions
![Page 108: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/108.jpg)
Receiver Controls and Functions•AF Gain or Volume
![Page 109: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/109.jpg)
Receiver Controls and Functions•AF Gain or Volume
• Controls the audio level to the speaker or headphones
![Page 110: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/110.jpg)
Receiver Controls and Functions•AF Gain or Volume
• Controls the audio level to the speaker or headphones
•RF Gain
![Page 111: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/111.jpg)
Receiver Controls and Functions•AF Gain or Volume
• Controls the audio level to the speaker or headphones
•RF Gain
• Controls the gain of the receiver’s input amplifiers
![Page 112: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/112.jpg)
Receiver Controls and Functions•AF Gain or Volume
• Controls the audio level to the speaker or headphones
•RF Gain
• Controls the gain of the receiver’s input amplifiers
•Attenuator
![Page 113: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/113.jpg)
Receiver Controls and Functions•AF Gain or Volume
• Controls the audio level to the speaker or headphones
•RF Gain
• Controls the gain of the receiver’s input amplifiers
•Attenuator•Reduces signal at the receiver input
![Page 114: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/114.jpg)
Receiver Controls and Functions
•Receive Incremental Tuning (RIT)
![Page 115: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/115.jpg)
Receiver Controls and Functions
•Receive Incremental Tuning (RIT)
•“Fine tuning”
![Page 116: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/116.jpg)
Receiver Controls and Functions
•Receive Incremental Tuning (RIT)
•“Fine tuning”
•Adjusts receive frequency independent of main VFO
![Page 117: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/117.jpg)
Receiver Controls and Functions
•Receive Incremental Tuning (RIT)
•“Fine tuning”
•Adjusts receive frequency independent of main VFO
•Doesn’t vary the transmitted frequency
![Page 118: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/118.jpg)
Receiver Controls and Functions
•Receive Incremental Tuning (RIT)
•“Fine tuning”
•Adjusts receive frequency independent of main VFO
•Doesn’t vary the transmitted frequency
•Transmitters have a similar function (XIT)
![Page 119: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/119.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)
![Page 120: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/120.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
![Page 121: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/121.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
–Keeps strong signals from blasting the listener
![Page 122: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/122.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
–Keeps strong signals from blasting the listener–Different time response settings:
![Page 123: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/123.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
–Keeps strong signals from blasting the listener–Different time response settings:–Fast setting for CW
![Page 124: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/124.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
–Keeps strong signals from blasting the listener–Different time response settings:–Fast setting for CW–Slow settings for SSB and AM
![Page 125: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/125.jpg)
Receiver Controls and Functions
•Automatic Gain Control (AGC)–Automatically limits the incoming signals during signal (voice) peaks to maintain even volume
–Keeps strong signals from blasting the listener–Different time response settings:–Fast setting for CW–Slow settings for SSB and AM–Not used in FM because amplitude is constant
![Page 126: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/126.jpg)
Receiver Controls and Functions•Squelch
![Page 127: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/127.jpg)
Receiver Controls and Functions•Squelch
–Mutes audio to speaker when signal is not present
![Page 128: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/128.jpg)
Receiver Controls and Functions•Squelch
–Mutes audio to speaker when signal is not present
•Used in FM primarily
![Page 129: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/129.jpg)
Receiver Controls and Functions•Squelch
–Mutes audio to speaker when signal is not present
•Used in FM primarily
–Open – allows very weak signals to pass through (along with noise)
![Page 130: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/130.jpg)
Receiver Controls and Functions•Squelch
–Mutes audio to speaker when signal is not present
•Used in FM primarily
–Open – allows very weak signals to pass through (along with noise)
–Tight – allows only the strongest signals to pass
![Page 131: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/131.jpg)
Receiver Controls and Functions
•Advance the squelch control until the noise just disappears
![Page 132: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/132.jpg)
Receiver Controls and Functions
•Advance the squelch control until the noise just disappears
•Also opened by MON (Monitor) control on handhelds
![Page 133: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/133.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)
![Page 134: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/134.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)–IF filter
![Page 135: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/135.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)–IF filter•Used to narrow the width of signal that is passed.
![Page 136: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/136.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)–IF filter•Used to narrow the width of signal that is passed.•Can attenuate adjacent signals.
![Page 137: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/137.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)–IF filter•Used to narrow the width of signal that is passed.•Can attenuate adjacent signals.
–Notch filter
![Page 138: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/138.jpg)
Receiver Controls and Functions•Filters (can be electronic modules or DSP)–IF filter•Used to narrow the width of signal that is passed.•Can attenuate adjacent signals.
–Notch filter•Very narrow filter that can be moved over an interfering signal to attenuate it.
![Page 139: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/139.jpg)
Receiver Controls and Functions•Noise blanker (NB)
![Page 140: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/140.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise
![Page 141: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/141.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise•Can cause problems if strong signals are present
![Page 142: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/142.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise•Can cause problems if strong signals are present
•Noise reduction (NR)
![Page 143: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/143.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise•Can cause problems if strong signals are present
•Noise reduction (NR)•DSP function to remove noise from signal
![Page 144: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/144.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise•Can cause problems if strong signals are present
•Noise reduction (NR)•DSP function to remove noise from signal
•Noise limiter (NL)
![Page 145: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/145.jpg)
Receiver Controls and Functions•Noise blanker (NB)•Removes signal pulses that are frequently associated with random naturally generated noise•Can cause problems if strong signals are present
•Noise reduction (NR)•DSP function to remove noise from signal
•Noise limiter (NL)•Simply limits maximum volume of a noise pulse
![Page 146: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/146.jpg)
Receiver Controls and Functions•Preamplifier
![Page 147: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/147.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
![Page 148: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/148.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
•Reception and Transmission Meter
![Page 149: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/149.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
•Reception and Transmission Meter
–In transmit, indicates output power or ALC or other functions as selected by switch setting
![Page 150: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/150.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
•Reception and Transmission Meter
–In transmit, indicates output power or ALC or other functions as selected by switch setting
–In receive, indicates signal strength
![Page 151: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/151.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
•Reception and Transmission Meter
–In transmit, indicates output power or ALC or other functions as selected by switch setting
–In receive, indicates signal strength• In “S” units S1 through S9 – S9 is strongest
![Page 152: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/152.jpg)
Receiver Controls and Functions•Preamplifier
• Increases sensitivity but can cause overload
•Reception and Transmission Meter
– In transmit, indicates output power or ALC or other functions as selected by switch setting
– In receive, indicates signal strength• In “S” units S1 through S9 – S9 is strongest
•Above S9, meter is calibrated in dB (i.e S9+10 dB)
![Page 153: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/153.jpg)
Receiver Controls and Functions
•Receivers can be limited to ham bands or can cover other parts of the spectrum.
![Page 154: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/154.jpg)
Receiver Controls and Functions
•Receivers can be limited to ham bands or can cover other parts of the spectrum.
•General coverage receivers cover a wide area of the spectrum and can be used for shortwave listening (SWL).
![Page 155: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/155.jpg)
Data Modes
![Page 156: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/156.jpg)
Data Modes
•Computertocomputer communication
![Page 157: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/157.jpg)
Data Modes
•Computertocomputer communication
•Specialized modems
![Page 158: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/158.jpg)
Data Modes
•Computertocomputer communication
•Specialized modems
• Terminal Node Controller (TNC)
![Page 159: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/159.jpg)
Data Modes
•Computertocomputer communication
•Specialized modems
• Terminal Node Controller (TNC)
•Multiple Protocol Controller (MPC)
![Page 160: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/160.jpg)
Data Modes
•Computertocomputer communication
•Specialized modems
• Terminal Node Controller (TNC)
•Multiple Protocol Controller (MPC)
• Computer sound card software
![Page 161: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/161.jpg)
Data Modes
•Computertocomputer communication
•Specialized modems
• Terminal Node Controller (TNC)
•Multiple Protocol Controller (MPC)
• Computer sound card software
•Requires radio interface
![Page 162: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/162.jpg)
Popular Digital Modes & Systems
![Page 163: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/163.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)
![Page 164: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/164.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31
![Page 165: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/165.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31MFSK
![Page 166: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/166.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31MFSKPacket Radio and PACTOR
![Page 167: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/167.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31MFSKPacket Radio and PACTORCW (International Morse)
![Page 168: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/168.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31MFSKPacket Radio and PACTORCW (International Morse)Automatic Packet Reporting System (APRS)
![Page 169: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/169.jpg)
Popular Digital Modes & SystemsRadioteletype (RTTY)PSK31MFSKPacket Radio and PACTORCW (International Morse)Automatic Packet Reporting System (APRS)Winlink System
![Page 170: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/170.jpg)
Popular Digital Modes & Systems
Error detection
![Page 171: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/171.jpg)
Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSK
![Page 172: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/172.jpg)
Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
![Page 173: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/173.jpg)
Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
Error correction
![Page 174: Technician License Course€¦ · AM/SSB/CW modes. •Required for ... Multiband Transceiver. Multiband Transceiver •Covers many bands – usually refers to coverage ... Transmitter](https://reader034.vdocument.in/reader034/viewer/2022042515/5f6c4fe9c40d7364ca4aeb2f/html5/thumbnails/174.jpg)
Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
Error correctionMFSK (forward error correction or FEC)
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Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
Error correctionMFSK (forward error correction or FEC)Packet radio
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Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
Error correctionMFSK (forward error correction or FEC)Packet radioChecksums and call signs
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Popular Digital Modes & Systems
Error detectionYes: Packet radio, MFSKNo: RTTY, PSK31
Error correctionMFSK (forward error correction or FEC)Packet radioChecksums and call signsRetransmission or ARQ
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Data Station Setup
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Internet Gateway
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Automatic Position Reporting System(APRS)
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Practice Questions
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What describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?
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What describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?
Carrier squelch
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What is true concerning the microphone connectors on amateur transceivers?
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What is true concerning the microphone connectors on amateur transceivers?
Some connectors include pushtotalk and voltages for powering the microphone
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How might a computer be used as part of an amateur radio station?
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How might a computer be used as part of an amateur radio station?
For logging contacts and contact informationFor sending and/or receiving CWFor generating and decoding digital signals
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What would be connected between a transceiver and computer in a packet radio station?
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What would be connected between a transceiver and computer in a packet radio station?
Terminal node controller
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How is a computer’s sound card used when conducting digital communications using a
computer?
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How is a computer’s sound card used when conducting digital communications using a
computer?
The sound card provides audio to the microphone input and converts received audio
to digital form
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What may happen if a transmitter is operated with the microphone gain set too high?
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What may happen if a transmitter is operated with the microphone gain set too high?
The output signal might become distorted
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What can be used to enter the operating frequency on a modern transceiver?
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What can be used to enter the operating frequency on a modern transceiver?
The keypad or VFO knob
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What is the purpose of the squelch control on a transceiver?
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What is the purpose of the squelch control on a transceiver?
To mute receiver output noise when no signal is being received
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What is a way to enable quick access to a favorite frequency on your transceiver?
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What is a way to enable quick access to a favorite frequency on your transceiver?
Store the frequency in a memory channel
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What would reduce ignition interference to a receiver?
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What would reduce ignition interference to a receiver?
Turn on the noise blanker
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What control could be used if the voice pitch of a singlesideband signal seems too high or low?
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What control could be used if the voice pitch of a singlesideband signal seems too high or low?
The receiver RIT or clarifier
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What does the term "RIT" mean?
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What does the term "RIT" mean?
Receiver Incremental Tuning
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What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?
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What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?
Permits noise or interference reduction by selecting a bandwidth matching the mode
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What is an appropriate receive filter bandwidth to select in order to minimize noise and interference
for SSB reception?
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What is an appropriate receive filter bandwidth to select in order to minimize noise and interference
for SSB reception?
2400 Hz
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What is an appropriate receive filter bandwidth to select in order to minimize noise and
interference for CW reception?
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What is an appropriate receive filter bandwidth to select in order to minimize noise and
interference for CW reception?
500 Hz
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What is the function of automatic gain control or AGC?
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What is the function of automatic gain control or AGC?
To keep received audio relatively constant
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What is meant by the term "PTT"?
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What is meant by the term "PTT"?
The push to talk function which switches between receive and transmit
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What device is most useful for VHF weaksignal communication?
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What device is most useful for VHF weaksignal communication?
A multimode VHF transceiver
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What device increases the lowpower output from a handheld transceiver?
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What device increases the lowpower output from a handheld transceiver?
An RF power amplifier
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What can you do if you are told your FM handheld or mobile transceiver is overdeviating?
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What can you do if you are told your FM handheld or mobile transceiver is overdeviating?
Talk farther away from the microphone
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What name is given to an amateur radio station that is used to connect other amateur stations to
the Internet?
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What name is given to an amateur radio station that is used to connect other amateur stations to
the Internet?
A gateway
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Which of the following is an example of a digital communications method?
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Which of the following is an example of a digital communications method?
PacketPSK31MFSK
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What does the term APRS mean?
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What does the term APRS mean?
Automatic Packet Reporting System
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What device provides data to the transmitter when sending automatic position reports from a mobile
amateur radio station?
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What device provides data to the transmitter when sending automatic position reports from a mobile
amateur radio station?
A Global Positioning System receiver
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What is an application of APRS (Automatic Packet Reporting System)?
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What is an application of APRS (Automatic Packet Reporting System)?
Providing real time tactical digital communications in conjunction with a map showing the locations
of stations
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What does the abbreviation PSK mean?
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What does the abbreviation PSK mean?
Phase Shift Keying
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What is PSK31?
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What is PSK31?
A lowrate data transmission mode
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What may be included in packet transmissions?
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What may be included in packet transmissions?
A check sum which permits error detectionA header which contains the call sign of the station to which the information is being sentAutomatic repeat request in case of error
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What code is used when sending CW in the amateur bands?
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What code is used when sending CW in the amateur bands?
International Morse
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What can be used to transmit CW in the amateur bands?
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What can be used to transmit CW in the amateur bands?
Straight KeyElectronic KeyerComputer Keyboard
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What is an ARQ transmission system?
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What is an ARQ transmission system?
A digital scheme whereby the receiving station detects errors and sends a request to the sending
station to retransmit the information
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End of Module 11