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Desktop Shortwave Transmitter
HF Transceiver

General

HAM bands 80m  40m  20m  15m  10m  80m  40m  20m  15m  10m 
Freq. stability less than 500 Hz variation Typically less than 500 Hz pr hour after a 30-minute warm-up. Typically less than 150 Hz pr 30 minutes after a 90-minute warm-up
Tuning steps Continuous Continuous

Receiver

RX-range - 10-80 m
Modulations - CW  
Sensitivity ? ≤ 0.5 µV for 10 dB S+N/N
≤ 0.2 µV for readable signal
Selectivity ? Narrow: 250 Hz maximum at 6 dB.
Wide: 1 kHz maximum at 6 dB.
Filters ? Passband 700 Hz (approximate)
Receiver system ? Superheterodyne
IF-freqs. ? ?
Image rejection ? ≥ 60 dB
Audio output ? 1 watt into 8-ohm load

Transmitter

TX-range 80-10 m
3.5-4 / 7-7.5 / 14-14.5 / 21-21.5 / 28-29 / 29-30 MHz
10-80 m
Modulations AM   CW   CW  
RF-output 50 W 4 W (3 W on 10 m)

Connections

Antenna SO-239 SO-239
Impedance 40-1000Ω 50Ω
Other - -

Electrical

Power req. Mains (110 / 125 / 140 / 160 / 220 / 280 V AC, 50-60 Hz) 11-16 V DC
Current RX - ?
TX 195 VA max 1 A max

Physical

Manufactured Between 1964 and 1966 in Italy Between 1984 and 1991 in USA
Dimensions 520 × 260 × 250 mm
(20.47 × 10.24 × 9.84 in)
235 × 108 × 216 mm
(9.25 × 4.25 × 8.50 in)
Weight ? 2.10 kg (4.6 lbs)
Form factor Base Station Base Station

Other features

Memories None None
Usage Amateur / Ham radio operators Amateur / Ham radio operators
Features ? QSK
WARC option
Accessories ? ?
MPN GELOSO-G000004/223 HEATHKIT-HW-000009