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Last modified 2025-11-16

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BC-457-A (USA, WWII)

A picture of BC-457-A

SPECIFICATIONS

GENERAL
Type:Military HF transmitter
Frequency range:4-5.3 MHz
Tuning steps:Analog / continuous
Frequency stability:Max ? ppm
Mode:AM / CW
Channels / memory management:None
Power supply:24-28 VDC (Dynamotor supply)
Current drain / power consumption:? A
Antenna impedance / connector:? ohm / ?
Dimensions (W*H*D):184*223*382 mm (7.24*8.78*15.04")
Weight:6.8 Kg (15 lb)
Other features:




TRANSMITTER SECTION
RF output power: ~40 W
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA (By Western Electric), 1940-194x (Discontinued)
Additional info: This transmitter was part of the SCR-274-N command set.

Surplus price 1948 in the US: $5.95
Related documents:
Modifications and fixes:
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