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Desktop Shortwave Transmitter
Desktop Shortwave Transmitter
Desktop ULF/VLF Receiver

General

HAM bands 160m  80m  40m  20m  15m  10m  80m  40m  20m  10m  2000m 
Freq. stability ? ? ?
Tuning steps Continuous Continuous Continuous

Receiver

RX-range - - 15-500 / 500-1500 kHz (2 ranges, 7 bands)
Modulations - - AM   CW   FSK  
Sensitivity ? ? 6 µV
Selectivity ? ? ?
Filters ? ? 0.1 / 1 / 2 / 4 / 8 kHz
Receiver system ? ? Double conversion cuperheterodyne, including circuit arragement for cancelling drift of crystal oscillator (34 tubes)
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? 500 mW unbalanced, 10 mW balanced

Transmitter

TX-range 160-10 m (continuous) 10, 20, 40 & 80 m (depending on coil set) -
Modulations AM   CW   AM   CW   -
RF-output AM: 100 W, CW: 115 W 100 W ?

Connections

Antenna - - Proprietary
Impedance 50Ω ? 125Ω
Other - - -

Electrical

Power req. Mains Mains Mains (115/230 V AC)
Current RX - - 250 W with oven on, 150 W when oven off
TX ? ? -

Physical

Manufactured Between 1952 and 195x in USA Between 194x and 194x in USA Between 1951 and 19xx in USA
Dimensions 508 × 311 × 438 mm
(20.00 × 12.24 × 17.24 in)
? 483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
Weight ? ? 37.20 kg (82.1 lbs) including power supply PP-621/URR
Form factor Base Station Base Station Base Station

Other features

Memories None None None
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? Operating altitude up to 10,000 feet
Accessories ? ? ?
MPN HALLICRAFTERS-HT-000020 HALLICRAFTERS-HT-000009 COLLINS-R-000389/URR