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Desktop Shortwave Transmitter
Desktop Shortwave Transmitter
Headless HF/VHF/UHF Scanner / receiver

General

HAM bands 160m  80m  40m  20m  15m  10m  80m  40m  20m  15m  10m  ?
Freq. stability ? ? 10 p.p.m. (0 to 60° C)
Tuning steps Continuous Continuous 1 Hz / 0.01 kHz

Receiver

RX-range - - 0.15-1500 MHz
Modulations - - AM   N-FM   W-FM   USB   LSB  
Sensitivity ? ? AM:
0.15-1.5 MHz: 25µV
1.5-1000 MHz: 1µV
1-1.5 GHz: 1.9µV
SSB/CW:
0.15-1.5 MHz: 0.9µV
1.5-1000 MHz: 0.3µV
1-1.5 GHz: 0.4µV
N-FM:
150 kHz-1.5 GHz: 0.4µV
W-FM:
0.15-30 MHz: -
30-1000 MHz: 1.0µV
1-1.5 GHz: 1.0µV

AM / SSB / CW: 10dB S/N
N-FM / W-FM: 12dB SINAD
Selectivity ? ? SSB/CW: 2.5 kHz @ 6dB
AM: 6 kHz @ 6dB
N-FM: 15 kHz @ 6dB
W-FM: 230 kHz @ 6dB
Filters ? ? ?
Receiver system ? ? ?
IF-freqs. ? ? ?
Image rejection ? ? 65dB
Audio output ? ? 0.2W (8 ohm load)

Transmitter

TX-range 160-10 m 10-80 m -
Modulations AM   CW   SSB   AM   CW   -
RF-output AM: 200 W, SSB/CW: 275 W 40 W ?

Connections

Antenna - - BNC
Impedance 50/600Ω ? 50 Ω
Other - - -

Electrical

Power req. Mains Mains ?
Current RX - - ?
TX ? ? -

Physical

Manufactured Between 1956 and 1962 in USA Between 1955 and 1960 in Italy Between 199x and 200x
Dimensions 530 × 290 × 410 mm
(20.87 × 11.42 × 16.14 in)
? ?
Weight 33.00 kg (72.8 lbs) ? ?
Form factor Base Station Base Station Headless

Other features

Memories None None ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features XTAL and VFO ? RS-232 computer interface
Accessories ? ? ?
MPN E.F.-JOHNSON-VIKING-VALIANT GELOSO-G-000210-TR WINRADIO-WR-001500E