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TM 11-5820-890-30-5
3-12. ASSEMBLY AND INSTALLATION OF STANDARD TEST SETUP. Continued
ITEM
ACTION
REMARKS
g. Reference fixture
Normal presets are:
CHAN
FREQUENCY (MHz)
MAN
30.000
1
37.875
2
42.975
3
43.375
4
49.075
5
56.200
6
68.775
CUE
87.975
Also load FH sync time (TOD),
TRANSEC, and hopset.
Preset switch settings:
CB1:
ON
When
MODE:
SC
is not
NOTE:
the reference fixture
going to be used for
RF:
LO
long periods (overnight), set
CHAN:
MAN
FCTN switch to STW position
FCTN:
OFF
to extend holding battery life.
DATA:
OFF
Presets will have to be
VOL:
As required
reloaded afterward.
DIM:
As required
Section IV. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
3-13. GENERAL.
PMCS are required for the reference fixture. They are needed to keep it in good working order. Do the checks in
the PMCS table at the intervals listed. Some checks and services must be done whenever you see they need to
be. These routine tasks are not listed in the table. They include cleaning, checking cables for damage, stowing
items not used, and checking for loose nuts, bolts, and screws.
3-14. PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
ITEM
ACTION
REMARKS
a. Holding battery in RT.
Set FCTN: OFF.
Perform this check
Set CB1: OFF.
every six months.
If RT loses fill information,
replace holding battery.
b. Holding battery in ECCM
Replace every six months.
fill device.
c. ECCM fill devices.
Test daily for presence of
fill information.
Refer to paragraph 3-21
for loss of fill information.
3-24
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