TM 11-5821-333-30
2-23. OPERATIONAL CHECK. Continued
ACTION
RESPONSE
Step 14. FH TRANSMIT
a. Press uut FREQ button.
b. Set uut switches:
FUNCTION
MODE
c. Set ref rt switches:
FUNCTION
PRESET
MODE
CHECKS
a. No response.
b. No response.
SQ ON
FH-M
c. No response.
SQ ON
1
FH
d. Set test adapter switches:
d. No response.
S1
3
TEST EQUIPMENT
SELECTOR
ICS
PTT(S8)
UUT
e. Speak into headset and listen to audio.
e. Clear and intelligible audio present. If not,
go to chart 23.
f. Set test adapter switches:
PTT(S8)
OFF
CAL
IN
S1
8
TEST EQUIPMENT
SELECTOR
SCOPE
g. Use frequency counter and scope channel 2
to set function generator:
Function
square wave
Frequency
1.0 kHz±100HZ
output
1 0 ± 1 V
peak-to-peak
h. Set PTT(S8) on test adapter to UUT and
check scope channel 1.
f. No response.
g, No response.
h. Scope displays 3.0 to 5.0 V peak-to-peak
square wave (may quiver).
If not, go to chart 24.
2-29
