RF CONTROL ASSEMBLY P/O MODULE A4500 (TRANSMIT MODE).

TM 11-5820-670-30

1-49. RF CONTROL ASSEMBLY P/O MODULE A4500 (TRANSMIT MODE).

Band-pass filter FL4501A filters out harmonics of all transmitted signals in the frequency range of

30.00 MHz to 52.95 MHz. Band-pass filter FL4501 B attenuates harmonics of all transmitted signals in

the frequency range of 53.00 MHz 75.95 MHz. The overall function of the filter is to attenuate all

harmonics of the passband frequencies (30 MHz 75.95 MHz) while offering minimum loss to the

passband frequencies.

Frequency modulated rf power from A6500 flows through relay K4504 to, depending on the transmitted

frequency, FL4501A or FL4501 B. The filtered power then flows through relay K4503 to the sidetone

gate detector.

SIDETONE GATE DETECTOR

EL1AT122

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