TM 11-6625-1633-45
Figure 5-1. Rf output frequency, test setup diagram .
(1) POWER RANGE
0.3 MW/ - 5DBM
600-1850 MC
FREQUENCY METER
FREQUENCY MC
REQUIRED ZERO BEAT LIMITS
(2) ZERO SET:
Fully clockwise
counter
MINIMUM (MHz)
MAXIMUM (MHz)
(3) COEF:
NEG
1300
1296.1
1303.9
(4) RES:
200
1400
1395.8
1404.2
1500
1495.5
1504.5
(5) BIAS CURRENT:
OFF
1600
1595.2
1604.8
(6) ON:
ON
1700
1694.9
1705.1
d. Set the controls of the AN/URM-149 as follows:
1800
1794.6
1805.4
1850
1844.45
1855.55
(1) ATTENUATOR
-7
MICROVOLTS/
5-10. RF Output Power Test
DBM control:
(2) Center frequency
600
selector handwheel:
do not connect waveguide probe MX2144/U to the sig-
(3) MODULATION
OFF
nal generator.
selector switch:
b. Allow the equipment to warmup for 30 minutes.
(4) POWER OFF
on (up)
toggle switch:
5-4
