PS Magazine - TB 43-PS-569

PS, The Preventative Maintenance Monthly

ISSUE 569

APRIL 2000
PS Magazine - TB 43-PS-569 - Page 28 of 34
Mobile Subscriber Equipment . . .
The next time you power up your
RT, you can reestablish the previous
frequency plan by switching the STOR
switch back to RADIONET or NET-
WORK. Or you can load a new fre-
quency plan.
PLAN switch is left in the NETWORK
or RADIO NET setting, the RT then
draws power from the battery. The bat-
tery runs down and stored data is lost.
battery inserted at even a slight angle
leads to worn battery compartment
threads, poor battery contact and a
poor cover seal that lets water into the
compartment.
Here’s how to stop that power drain.
When you’re ready to shut down the
RT, set the OFF—BLACKOUT—ON
switch to OFF. Then set the FREQ
PLAN switch to STOR with a small-
blade screwdriver. That allows the bat-
tery to hold the programmable data in
memory.
Get lithium battery and replacement cap
Slide battery in straight
O-ring goes in evenly?
Set OFF—BLACKOUT—ON switch to OFF
Set FREQ PLAN switch to STOR
The old battery cap does not work
with the new battery. The new battery
is longer than the old one and the old
cap is not deep enough to hold it.
Order a new cap that will work with
Problem Two
When you replace a battery and its
cap, make sure you insert the new bat-
tery straight into the compartment. A
Use a screwdriver to snug up the
battery cover. For a tight fit, make sure
the O-ring enters evenly into the bat-
tery compartment. Once the battery is
installed correctly, the O-ring should
not be visible.
Problem Three
The new battery can be drained, just
like the old one, if you don’t shut down
your RT right.
With the OFF—BLACKOUT—ON
switch set to OFF, the main power to
the RT is shut down. If the FREQ
PS 569
51
APR 00
well,
i'm
weak
as
a kitten.
..
...my o-ring
has
split
and.
..
...i've got
those lowdown
battery
blues
,
oh yeah!
he RT-1539 receiver-transmitter
gives mobile subscriber equipment
(MSE) secure VHF FM communica-
tions.
But the security is only as good
as the fill battery that holds program-
mable data—and that’s where three
problems are:
Problem One
When your RT was fielded, it used a
BA-1318/U battery, NSN 6135-00-295-
2619, that was held in place with a
But that mercury battery has been
replaced with a lithium one, NSN
6135-01-214-6441. The BA-5372/U
lithium battery lasts longer, it’s safer
to use and it’s less harmful to the
environment.
APR 00
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