TM 11-6625-2632-14-1
b. The detector circuit, which is a halfwave
parallel with the meter and when the switch is set
to 243.0/282.8, A1A1R2 is in parallel with the
rectifying circuit,
applies a dc level which iS
meter.
proportional to signal strength, through switch
c. The output from the feedthru (A2A2E1) that
A1A1S1 to meter A1M1 in parallel with variable
r e s i s t o r A1A1R1 or A1A1R2. The variable
acts as an internal transmitting antenna is picked
up by the internal antenna probe (A2E2) which is
resistors are adjusted during calibration so that dc
located approximately 2-1/4 inches away. The rf
ammeter A1M1 registers in the green portion of its
signal level at antenna probe A2E2 is attenuated
dial, marking when the signal from the trans-
b y the pickup circuit and coupled through
mitting radio set is at an acceptable level. The
RECEIVER connector A2J2 to the radio set under
attenuation of the detector circuit is different at
test .
121.5 MHz and 243.0/282.8 MHz so when switch
A 1 A 1 S 1 is set to 121.5 MHz, A1A1R1 is in
4-3
