TM 11-5820-890-30-4
12-23. OPERATIONAL CHECK. Continued
Step 7. TRANSMIT VOICE TEST. Continued
Action
Response
j. Repeat step i. twice (once for TEK 3 and
j.
Clear and intelligible voice is heard in
once for TEK 4).
handset each time. If not, go to chart 29.
k. Set test adapter:
k. After beep, brief silence, and second beep,
PTT: OFF.
clear and intelligible voice is heard in
Set RCU:
handset. If not, go to chart 30.
COMSEC: TD.
While pressing handset PTT switch, talking,
and listening, set test adapter:
PTT: UUT.
l.
Set test adapter:
l.
RCU display reads:
PTT: OFF.
set RCU:
FCTN: LD
CHAN: 6
COMSEC: RV.
If not, go to chart 31.
Step 8. TRANSMIT ANALOG DATA TEST.
SET:
RCU:
TEST ADAPTER:
CHAN:
MAN
CAL:
FCTN GEN
TEST EQPT
FCTN:
SQ ON
TRIGGER: CONT
SELECTOR: SCOPE
COMSEC: CT
FREQ:
2400 Hz (2390 to 2410 Hz)
BASEBAND: 4
LEVEL:
100 mV p-p (90 to 110 mV p-p)
STIM SEL: FCTN GEN
FCTN:
SINE
CAL:
OFF
Action
Response
a. Scroll REF RT:
a. RCU display reads:
COMSEC variable to TEK 5
DATA rate to TF.
Scroll RCU:
DATA rate to TF.
If not, the control module (19A2) is bad.
12-36
