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Desktop HF/VHF Receiver
Desktop Shortwave receiver
Desktop HF/VHF Receiver

General

HAM bands ? ? 6m 
Freq. stability ? ? ?
Tuning steps ? ? ?

Receiver

RX-range 0.05-54 MHz (0.48-35 MHz for early versions) 2.6-22 MHz 0.54-31 / 48-56 MHz in 5 bands
Modulations AM   FM   CW   AM   AM   N-FM   CW  
Sensitivity ? ? ?
Selectivity ? ? ?
Filters ? ? ?
Receiver system Single / Double conversion, 15 tubes ? Double conversion superheterodyne
IF-freqs. 1st: 2010 kHz
2nd: 455 kHz
? 455 kHz
Image rejection ? ? ?
Audio output 8 W ? 8 W, external speaker required

Transmitter

TX-range - - -
Modulations - - -
RF-output ? ? ?

Connections

Antenna - - -
Impedance 50/75 Ω 50 Ω 50 Ω
Other - - -

Electrical

Power req. Mains (115/230 V AC) ? 110-120 / 220-240V AC
Current RX ? ? ?
TX - - -

Physical

Manufactured Between 1952 and 1964 in USA Between 19xx and 19xx in USA Between 1947 and 1952 in USA
Dimensions 502 × 257 × 419 mm
(19.76 × 10.12 × 16.50 in)
? 501 × 260 × 425 mm
(19.72 × 10.24 × 16.73 in)
Weight ? ? 29.40 kg (64.9 lbs)
Form factor Base Station Base Station Base Station

Other features

Memories ? ? ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? Bandspread in ham bands
Accessories ? ? ?
MPN NATIONAL-COMPANY-HRO-000060 NATIONAL-COMPANY-SW-000058C NATIONAL-COMPANY-NC-000183D