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Desktop VHF Transceiver
Desktop Shortwave receiver
Desktop ULF/VLF Receiver

General

HAM bands 2m  80m  40m  20m  15m  10m  2000m 
Freq. stability ? ? ?
Tuning steps ? ? Continuous

Receiver

RX-range 144-146 MHz 10-80 m 15-500 / 500-1500 kHz (2 ranges, 7 bands)
Modulations FM   CW   SSB   AM   CW   SSB   AM   CW   FSK  
Sensitivity FM: 0.15 µV (10 dB)
SSB: 0.06 µV (10 dB)
? 6 µV
Selectivity ? ? ?
Filters ? ? 0.1 / 1 / 2 / 4 / 8 kHz
Receiver system Single conversion superheterodyne ? Double conversion cuperheterodyne, including circuit arragement for cancelling drift of crystal oscillator (34 tubes)
IF-freqs. 10.7 MHz ? ?
Image rejection ? ? ?
Audio output ? Requires external speaker 500 mW unbalanced, 10 mW balanced

Transmitter

TX-range 144-146 MHz - -
Modulations FM   CW   SSB   - -
RF-output 10 W ? ?

Connections

Antenna SO-239 - Proprietary
Impedance 50 Ω 50 Ω 125Ω
Other - - -

Electrical

Power req. 13.8V DC or mains Mains Mains (115/230 V AC)
Current RX Max 1.4 A ? 250 W with oven on, 150 W when oven off
TX Max 2.9 A - -

Physical

Manufactured Between 1975 and 197x in West Germany Between 19xx and 19xx in USA Between 1951 and 19xx in USA
Dimensions 307 × 117 × 260 mm
(12.09 × 4.61 × 10.24 in)
374 × 169 × 292 mm
(14.72 × 6.65 × 11.50 in)
483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
Weight 7.30 kg (16.1 lbs) 9.00 kg (19.9 lbs) 37.20 kg (82.1 lbs) including power supply PP-621/URR
Form factor Base Station Base Station Base Station

Other features

Memories ? ? None
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? Operating altitude up to 10,000 feet
Accessories ? ? ?
MPN BRAUN-SE-000401 COLLINS-000075S-1 COLLINS-R-000389/URR