 |
|||
|
|
|||
|
Page Title:
Sectionalization Tests Using AN/UPM-137A. |
|
||
| ||||||||||
|
|
 e. Sectionalization Tests Using AN/UPM-137A.
Control settings
Paragraph
Normal
Equipment
rcference
indication
Procedure
under test
Test equipment
Step
CAUTION
ME-26/V
1
If any indication during steps 1 through
SELECTOR SWITCH: +
3 appears abnormal due to a short cir-
RANGE 30
cuit, shut off the equipment and refer to
cause further equipment damage.
a. None.
Connect equipment as shown in figure 3-1.l.
a.
MODE: 1
b. +28 3 vdc.
Turn on equipment Allow 5 minutes warmup
FUNCTION: SYSTEM b.
time. Connect dc test probe to A13TP4.
ISLS: OFF
c. +12 1 vdc.
c.
Connect dc test probe to test A13TP3. Observe
meter indication Change ME-26A/U SE-
LECTOR SWITCH to-
d. - 12 1 vdc.
d.
Connect the dc test probe A13TPl and ob-
serve the meter indication.
a. None.
Turn off the test set and connect the equip-
Same as step l . . . . . . . . . . a.
AN/USM-207
ment as shown in figure 3-2.
DIRECT/HETRODYNE
b. None.
b.
Turn on the AN/USM-270A and CM-
switch:
77A/USM. Permit a l-hour warmup period.
HETRODYNE
c. None.
c.
Turn on the teat set and permit a 2-minute
VOLTAGE Switch:
warmup period,
10V
d. None.
d.
Press and turn the teat set PUSH TO TEST
FREQ TUNING-MC: 150
switch to LOCK. On the test set ground
POWER: TRACK
TPA4TP5.
FUNCTION: FREQ
SENSITIVITY:
PLUG IN
CM-77A/USM
POWER: ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a. position the CM-77A/USM FREQUENCY a. None.
MEGACYCLES control near 206 and adjust
the control until the units display indicates
a zero beat.
b. Multiply the AN/USM-207 indication by 5 to b. 1,030 mHz
206 kHz.
obtain the transmitter frequency.
4
TS-779A/U
Same as step 1.
CAUTION
BOLO BIAS CURRENT
TS-779A/U BOLO BIAS CURRENT
OFF
control must be set to OFF before the
BOLO RES: 200
MX-2144A/U is connected to the
BOLO TEMP COEF:
TS-779A/U to avoid equipment dam-
NEG
age.
a. Connect the MX-2144A/U to the TS-779A/U a. None.
input.
b. Adjust the TS-779A/U as follows:
b. None.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals