Specifications

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
1-48