Direct‐Sa‖mpling SoftwareEDefined HF Receiver

9 kHz to 50 1MHz continuous frequency range

Direct sampling with digital down―conversion

16口bit 100 1MSPS A/D conversion

50 MHz‐ wide,rea卜 time spectrum analyzer

2 1MHz recording and processing bandwidth

Three parallel demodulator channels

Waterfall display functions

Audio spectrurn analyzer

Audio and iF recording and playback

Recording、何ith pre口buffering

Very high iP3(+31 dBm)

Excellent sensitivity(0,35 μV SSB,0日16 μV CVV)

Exce‖ent dynarrlic range(107 dB)

Selectable medium‐ wave filter

The WiNRADiO WR‐ G31DDC‐ Exttrlilbりrris a high―

perforrnance,iow口cost,direct口sampling,sofmarettdefined,

shortwave receiver wkh a frequency range from 9 kHz to

50 MHz=ltincludes a real‐甘me50 MHz口 wide spectrum

analyzer and 2 1MHzttwide instantaneous bandwidth

available tbr recording,demodulation and further digital

processingロ

The receiverls superior perforrnance results from its

innovative,direct―samp‖ ng,digital down‐converter

architecture along with the use ofleading―edge

components and design concepts.These a‖ resultin a

very high iP3,vvide dynanlic range,high sensitivity and

tuning accuracyB These key features create a receiverin

a class ofits own,wvith wide application potential,at a

very affordaいle priceロ

The receiver:s robust front‐end is equipped with an uitra。

high―lineaHty ampl甘ier which resutts in excepttonal strongロ

signal perforrnance口An advanced dithering technique

elirninates spurious signals without significantly increasing

the receivers noise f10or口The superior 16‐bit 100 1uSPs

analogito―digital converter provides exceptional

perforrnance over an extremely、Ⅳide range of signalsロ

The endre 2 MHz DDC(diglally down―converted)

bandwidth is available ibr recording and demodulationロ

Three demodulators a1low the simulaneous receptton of

three signalfrequencies within the 2 1MHz bandwidthロ

The digital down‐converter provides 21 selectable output

bandwidths ranging from 20 kHz to 2 MHz口Any bandwidth

can be fine,tuned with l Hz resolution.The bandpass

audio filters ioⅥ′and high cut‐o打frequencies are graphica‖yattuStable,as is the notch filter and noise blankeL

The receiveris lightweight and portable,an ideal accessory

foriaptop and notebook computers口Every rnodern portable

computer can be quickly and easily converted into a

powettul HF monloHng station with minimum fussロ

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COMMUNIGA機 鶴総ぷ

WWWttWinradio口 com

The VViNRADiO G31 DDC receiver breaks new ground wtth Rs state‐of‐

the―art components,such as a high―perforrnance 1 6‐bit100 MSPS

analog―to―digital converteL it connects to a computer via the USB

interface which facilitates receiver control as we‖as transfer of the

24-bit digita‖y down―converted i8tQ signal.The receiveris very we‖

shielded against interference,rnaking it possible to operate in a noisy

computer environment.

The receiveris supphed with an external AC/DC power adapteL working

in linear rnode to avoid even the siightest possibility ofinterference

emanating from the power supply.

The WRttG31 DDC sofMare provides an elegant and logical userinterface.

There are several spectrum analyzer configurations including the 50 MHz

fu‖span vvith l.5 kHz resolution.The fu‖y―zoomable display can be

viewed in eitherthe standard or waterFa‖rnode.

The down― converted portion is highlighted and can be selected either via

keyboard or by the rnouse cursor and then displayed in anothervvindow,

within which three independent receiver channeis can exist.For any

channel,the receiver's selectivitレlF shift,passband tuning,notch,and

otherfunctions can be adiusted,and the audio spectrurn ofthe

demodulated signal can be observed“

The parameters of a‖ three independent channeis can be set separately

aHowing each to be recorded simuitaneously and independently.

Recording and playback are also provided atthe output ofthe digital

down‐converteL where an entire 2 MHz spectrum band can be recorded

forlater demodulation.Pre‐buffering prevents signalloss atthe start of a

transnlisslon.

A flexible schedulerfunction a‖ows unatended recording of each channel

at specified dates and tirnes.

The sofMare‐ defined architecture a‖ows easy sottare upgrades fbr

demodulation and decoding requirements.

in spite ofthe receiver:s ground…breaking architecture,the sofMare sti‖

remains sirnple and intuitive to use,containing a‖the features genera‖y

expected in rnodern receivers such as noise blanking,rnemories,

scheduler,squelch(leVel,voice or noise activated),numerOus tuning

options,and a wide choice of demodulation rnodes,inctuding user‐

deln e d a n d o p t t o n a l D R M m o d e s .SpecificariO,s are swり 。Cr rO。 ゎa17ge財 危わOttr β″οr 170rrce」 LJe r0 0。19rrngoLJS

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Receiver typeDirect―sampling,digita‖y down‐converting

sottare―defined receiver

Frequency range 9 kHzto 50 MHz

Tuning resolution l Hz

Mode

AM,AMS,LSB,USB,CW,FMNョ FSK

UDM(user‐ dettned mode)

DRM mode oplonal

:rnage reieCtion 90 dB typ=

+31 dBm min.

Attenuator 0‐21 dB,adiustable in 3 dB steps

SFDR 107 dB min.

Noise figure 14 dB

MDS ‐130 dBm@10 MHz,500 Hz BW

Phase nolse ‐145 dBc/Hz@10 kHz

RSSi accuracy 2 dB typ=

RSSi sensitivity ‐140 dBm

DDC bandwidth

(prOCessing and

recording)

20 kHz‐ 2 MHz

(SeleCtable in 21 steps)

Selectivity

(demodulation

bandwidth)

10 Hz-62.5 kHz

(COntinuOusty variable in l Hz steps)

Spectrum

ana:yzers

input spectrum/waterfaH,30 or50 MHz wide,

1.5 kHz resolution bandwidth

DDC spectrum/watettall,max 2 MHz wide,

l Hz resolution bandwidth

Channei spectrum,max 62.5 kHz wide,

l Hz resolution bandwidth

Demodulated audio,16 kHz wide,

l Hz resolution bandwidth

ADC 16bた,100 MSPS

Sensitivity

(@10 MHZ)

AM

‐101 dBm(2.00 μ V)@10dB S+N/N,

30%modulation,5 kHz BW

SSB‐116 dBm(0.35 μV)@10dB S+N/N,

2.l kHz BW

CW-123 dBm(0.16 μ V)(秒 10 dB SttN/N,

500 Hz BW

FM

‐112 dBm(0.56 μV)@12 dB SiNAD,

3 kHz deviation,12 kHz BV比

audio filter 300-3000 Hz,

deemphasis‐6 dB/oct

Tuning accuracy 0 5 ppm@25° C

Tuning stability 2 5 ppm(O t0 50°C)

MW filterCut―o甘frequency l.8 MHz@‐ 3 dB

A t t e n u a t t o n 6 0 d B m i n @ 0 . 5 M H z

Antenna input 50Ω (SMA connector)

Output 24‐bit digitized i&Q signal over USB interface

interface USB 2.O High speed

Power supply 12 V DC@500 mA(adapterincluded)

Operattng temp. O to 50°C

Dirnensions

Length:166 mm(6.5")

Width:97 mm(3.8")

Height:41 mm(1.6")

Weight 430g(15.l oz)

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