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Desktop HF/VHF Receiver
Desktop Shortwave receiver
4-Band SSB/CW Transceiver

General

HAM bands ? ? ?
Freq. stability ? ? ?
Tuning steps ? Continuous ?

Receiver

RX-range 50-430 kHz / 0.48-35 MHz 15,5-26,6 / 23,5-41 / 37,5-65 / 64-115 meter
110-175 / 170-300 / 290 - 570 meter optional
?
Modulations AM   FM   CW   AM   CW   SSB  
Sensitivity ? ? ?
Selectivity ? ? ?
Filters ? ? ?
Receiver system ? TRF with regeneration ?
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? ?

Transmitter

TX-range - - ?
Modulations - - CW   SSB  
RF-output ? ? ?

Connections

Antenna - - -
Impedance 50/200 Ω 50Ω ?
Other - - -

Electrical

Power req. Mains 6 + 45 + 135 + 180 V ?
Current RX ? ? ?
TX - - ?

Physical

Manufactured Between 1951 and 1952 in USA Between 1929 and 1935 in USA Between 2010 and 201x in China
Dimensions 502 × 257 × 419 mm
(19.76 × 10.12 × 16.50 in)
? ?
Weight 38.00 kg (83.8 lbs) ? ?
Form factor Base Station Base Station Portable

Other features

Memories ? None ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? ?
Accessories ? External PSU: National 3580B ?
MPN NATIONAL-COMPANY-HRO-000050T1 NATIONAL-COMPANY-SW-000004 CRKITS-KN-Q000010