TM 11-5821-333-30
2-23. OPERATIONAL CHECK. Continued
ACTION
RESPONSE
Step 22. OTHER TESTS. Continued
1.
Set rf signal generator:
1.
No response.
Frequency
30 MHz
FM modulation
INT, 1 kHz
Deviation
6.5 kHz
Output level
-70 dBm
m. Observe scope channel 1 and channel 2 at
the same time.
n. If uut is an RT-1476A or RT-1477A, go to
step v.
o. Set uut FUNCTION switch to OFF.
m. Channel 1 changes audio level in step with
channel 2. If not, go to chart 45.
n. No response,
o. No response.
p. No response.
p. Set test adapter switches:
CAL
OUT
DC
OFF
q. No response.
q. Set uut switches:
MODE
FH
PRESET
1
r.
No response.
r. Set uut FUNCTION switch to Z-A for 2 sec-
onds and back to OFF.
s. Set DC switch on test adapter to ON.
t.
Set uut FUNCTION switch to SQ ON.
u. If uut is not RT-1476, go to step x.
v. Set uut switches:
MODE
SC
PRESET
MAN
w. Set reference rcu switches:
FUNCTION
SQ ON
MODE
SC
PRESET
1
IFM-RF PWR
OFF
x. While watching uut display, set TAKE CTRL
switch on test adapter to RCU.
s. No response.
t.
Display reads “FILL t” for AN/ARC-201(V).
If not, go to chart 46.
u. No response.
v. No response.
w. No response.
x.
Display changes from “30000” to
"35875. ”
If not, go to chart 47.
2-37
