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  TM 11-6625-1702-35
Control
settings
Step
Performance
standard
Test
procedures
Equipment under test
No.
Test
equipment
d. None ---------- d. None _________________ d. Measure reflected RF d. None.
power
with
AN/
URM-120, and record
reading.
e. None . . . . . .
e. None . . . . . . . . . . .
e. D i s c o n n e c t
e. None
AN/URM120
and connect
equipment as
s h o w n by
broken lines
in figure 4-6.
METER FUNC- a. Adjust power supply to a. Test set meter indicates
2 a. Turn on power
a. Set
obtain a 27.5-volt in-
TION switch to 28
supply,
27.5 ±1.3 volts dc.
and
dication on
power
VDC.
allow time for
warm up.
supply meter.
b. Turn on fm
b. Set RF SELECT switch b. Adjust fm transmitter b. None.
frequency to 30 MHz.
to OUTPUT.
transmitter,
and allow
warm up
time.
c. N o n e - - - - - - - - - - c. IMPORTANT: If power C. Measure forward RF c. Test set meter indicates
power on test set
same reading in watts
measured in step 1a
meter, and recording
as recorded in step 1 a
above
exceeds 10-
reading.
watts, set METER
above, ±10%.
FUNCTION
switch
to RF POWER 35W
SCALE-FWD.
d. None ---------- d. Set METER FUNC- d. M e a s u r e reflected RF d. Test set meter indicates
TION switch to RF
same reading in watts
power on test set
POWER 10W
meter,
record
as recorded in step 1b
and
SCALE-REF.
reading.
above, ±10%.
e. None __________ e. None _________________ e. Adjust fm transmitter e. None.
frequency to 76 MHz.
f. None __________ f. Set METER FUNC- f. Measure forward RF f. Test set meter indicates
TION switch to RF
power on test set
same reading in watts
POWER 35W
meter,
and
record
as recorded in step 1C
SCALE-FWD.
reading.
above, ±10%.
g. None ---------- g. S e t METER FUNC- g. Measure reflected RF g. Test set meter indicates
TION switch to RF
power on test set
same reading in watts
and record
POWER 10W
meter,
as recorded in step 1d
reading.
SCALE-REF.
above, ±10%.
4-8
Change 1
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