TM 11-6625-2398-15-3
Figure 8-7. Cable insertion losses, test connections.
Step
Test equipment
Equipment under
Test
Performance
No.
control setting
test control settings
procedure
standard
INPUT SELECTOR:
XTAL-200 K Ω
2
AN/UPM-108A
a. Adjust the VERNIER GAIN
VERNIER GAIN and
control and RANGE switch for a 0
RANGE: As directed
indication on the EXPANDED DB
in the procedure.
scale of the meter on the standing
wave ratio indicator.
b. Connect the unused W14/W15
cable as shown with broken lines in
c. Read insertion loss of cable on
Cable insertion loss
EXPANDED DB scale of standing
must not exceed
wave ratio indicator meter. Com-
2.5dB.
pare with insertion loss marked for
1030 MHz on cable sleeve. If mark-
ing is incorrect by more than
0.2dB, change the marking by
scraping off ink and remarking with
India ink.
3
SG-340/G
a. Connect the test equipment as
MEGACYCLES:
shown with solid lines in figure 8-7.
1090
b. Repeat step 2 for the same W14/
Cable insertion loss
W15 cable, except compare loss
must not exceed
with sleeve marking for 1090 MHz.
2.5dB.
4
Controls remain as
Repeat step 3 for the second W14/
Cable insertion loss
at end of step 3.
W15 cable.
must not exceed
2.5dB.
8-23
Previous Page
