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Desktop ULF/VLF Receiver
Compact QRP | 100 W
Desktop Shortwave receiver

General

HAM bands 2000m  80m  40m  20m  15m  10m  80m  40m  20m  15m  6m  10m 
Freq. stability ? ? ?
Tuning steps Continuous 1 kHz Continuous

Receiver

RX-range 15-500 / 500-1500 kHz (2 ranges, 7 bands) 80-10 m 10-80 m with 2 m / 6 m converter options
Modulations AM   CW   FSK   FM   CW   USB   LSB   AM   CW  
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 - 80-10 m -
Modulations - FM   CW   USB   LSB   -
RF-output ? 100 W ?

Connections

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

Electrical

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

Physical

Manufactured Between 1951 and 19xx in USA Between 1982 and 1984 in Japan Between 1959 and 19xx in USA
Dimensions 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 ? ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features Operating altitude up to 10,000 feet RIT
CW filter optional
FM optional
Noise filter optional
?
Accessories ? ? ?
MPN COLLINS-R-000389/URR SHIMIZU-DENSHI-SS-000105D HALLICRAFTERS-SX-000101 MK IIIA