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Desktop HF/VHF Receiver
Desktop HF/VHF Receiver
Desktop HF/VHF Receiver

General

HAM bands ? ? ?
Freq. stability ? ? 0.01% or less
Tuning steps ? ? ?

Receiver

RX-range 50-430 kHz / 0.48-35 MHz 0.05-54 MHz (0.48-35 MHz for early versions) 0.54-40 MHz
Modulations AM   FM   CW   AM   FM   CW   AM   CW   SSB  
Sensitivity ? ? Better than 1-2 µV (10dB S/N)
Selectivity ? ? 6 positions
Filters ? ? 200Hz / 5.2kHz
Receiver system ? Single / Double conversion, 15 tubes ?
IF-freqs. ? 1st: 2010 kHz
2nd: 455 kHz
455 kHz
Image rejection ? ? ?
Audio output ? 8 W 1.5 watts at less than 10% distortion

Transmitter

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

Connections

Antenna - - Clamps / screws
Impedance 50/200 Ω 50/75 Ω 50/300Ω
Other - - -

Electrical

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

Physical

Manufactured Between 1949 and 1950 in USA Between 1952 and 1964 in USA Between 1957 and 1960 in USA
Dimensions ? 502 × 257 × 419 mm
(19.76 × 10.12 × 16.50 in)
412 × 254 × 276 mm
(16.22 × 10.00 × 10.87 in)
Weight ? ? ?
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 ? ? ?
Accessories ? ? ?
MPN NATIONAL-COMPANY-HRO-000050 NATIONAL-COMPANY-HRO-000060 NATIONAL-COMPANY-NC-000109