Overall Block Diagram Description of Receiver, R-1467(P)/GC-144(V)

TM 11-5820-695-35

bridge rectifier output is snort circuited causing the fuse

filtered by capacitors C1 through C3. The filtered output

in the ac input line to open.

is applied to series regulator Q3. Series regulator Q3,

under control of differential amplifier Q7 and Q8, and

amplifier Q2, Q4 through Q6, introduces the voltage

2-19.

Overall Block Diagram Description

drop necessary to maintain voltage regulation.

Receiver, R-1467(P)/GC-144(V) (fig. 5-18)

Overvoltage

Protection

Circuit.

Receiver,

Radio

R-1467(P)/GRC-144(V)

Overvoltage protection is provided by crowbar circuit

superheterodyne receiver which receives an rf input

Q1. An overvoltage condition at the voltage regulator

signal in the 4.4 to 5.0 GHz range from a line-of-sight

output is sensed by overvoltage amplifier Q9 which

antenna through Duplexer CU-1891/ GRC. The 4.4 to

triggers Q1 into conduction. With Q1 conducting, the

5.0 GHz rf input signal is

Change 6

2-45