aprs at nws-ilx weather reporting using automatic position reporting system larry m. keeran k9orp...
TRANSCRIPT
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APRS at NWS-ILXWeather Reporting using
Automatic Position
Reporting System
Larry M. Keeran K9ORPThis is the portion of multifaceted APRS used for assisting
coordination in your county and at the National Weather Service office during weather watches.
You may E-Mail K9ORP at: [email protected]
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What APRS is
Software Hardware Protocols Systems Computers Networks People
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What APRS is NOT?
APRS is NOT Magic Lifeless Only for Gurus Only for people with lots of money Only for people with GPS receivers
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APRS Features
Maps Weather Station
Reporting DX Cluster Reporting Internet Access Messages Bulletins and
Announcements
Traffic All-Packet Log Heard Log Digipeater List Fixed Station Tracking Objects ACARS
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Types of APRS
Base StationsWith computer, TNC, Radio and maybe Internet access
Mobile UnitsGPS, TNC and Radio
RepeatersTNC and Radio
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Software DOS Win95/98/NT Win95/98/NT Mac Win98/Win2K Linuxr Linux Perl Palm Pilot Internet Gateway
APRSdos WinAPRS UIView MacAPRS APRS+SA X-APRS APRSd perlAPRS PalmAPRS APRServ
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APRS Software
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What is a Tracker?
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Using a RELAY to Digi
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WIDE area Digipeaters
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WIDE versus RELAY
RELAY’s are mostly home stations
The are used to fill in areas with no WIDE coverage
WIDE’s are permament Digis
They have good coverage
Generally RELAY’s should be the first callsign in the path, such as RELAY,WIDE,WIDE
Relays are used to fill in the gaps. Wides do most of the work.
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Packet rebroadcast to Wide
Operation of the NWS-ILX Backbone
Packet sent to Relay,Wide,MCLPacket received by Relay
Packet received by 4 Wide Digi’sPacket Transmitted to Wide, MCL
MCL
Packet rec’d by MCL (gate to UHF)Packet transmitted to NWS-ILXWX3 is in range of ILX so noWX# is needed.
ILX
Relay
Wide
Wide
Wide
Wide
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APRS WX backbone detailsAPRS backbone is on 445.925 9600 baudThe GATE alias of MCL digipeats local APRS to the backboneThe Kantronics KPC-9612 GATEs using two transceiversThe 2 meter unit should only pick up local APRS stations.If it is too high, the delay waiting for dead air will slow WX ObjectsThe PATH to ILX ends with “,MCL” + “your WX# UHF 9600 path”The # in WX# for the backbone is the tens of miles radius from ILX.WX Objects are entered by one emergency powered base in each county or net. Having the internet would be a plus. That station should be familiar twith his county roads and be able to enter that on his version of APRS while he is listening to the local voice weather net.WX Objects REMARKS MUST include: YOURcall Confirmed (or Reported) by REAL NAMEDamage reports MUST include: YOURcall then the REAL AC PHONE# of the person knowing the location of the damage.
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Space Operations
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Beacon Text on Fixed Stations
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Weather Stations
Weather Stations may also be placed onto the APRS network allowing automated weather reporting
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Manually Added Stations
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APRS Messaging - Person to Person
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APRS Announcements and Bulletins
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APRS work station at NWS-ILX
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Visual Aid - NWS PUP Display
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Visual Aid - APRS field units
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Internet Gateways
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URL of this presentation
http://www.qsl.net/k9orp/ILX.ppt
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URL of this presentation
http://www.qsl.net/k9orp/ILX.htm