PS Magazine - JANUARY 1986
PS, The Preventative Maintenance Monthly
ISSUE 398
JANUARY 1986
Turn It Al Of
Befre you start or stop your wheeled
vehicle's engIne,
tm
oF± the AN/VRC-
12²series receiver-transmitter (RT), the
aux receiver
and
all secure gear.
Ll&HT
ON
1-±²³´ oFµ¶
1.IG"
±powfR
Lo
OFf
®
BREAK€r-±eS£1
Turn RT
OFF before
st±ing engIne
You've heard o³en enough what the
surge o´ power µoM your vehicle's
electrIcal system will do to radIo
circuits¶
The surge can also blow the wIring
insIde the secure gear¶
·
Be on the sa· side. Set the swItches
on alL equIpment to O¸¸¹
ºn your tracked vehicles, ON/O¸¸
control fr RT»s, aux receivers and
AM-1780
secure gear should be in your A¼-½780
audio²±¾equency ampli¿er»s ¼AºÀ
PWR switch¹ Your org shop can veÁiÂ
that control per Para 2Ã14 o´ T¼
½1-5820²401-20ÄÅ.
CV-1548 Meter Dead?
º´ the ammeter on your CV-½548 telephone siGnal
converter isn»t workIng, you may have one o´ the newer
model power supplies. Supplies are interchangeaÆle,
but the PP²Ç ÈA Ç is the only one ÉIth circuits that
power
the amÊ
Ëeter.
Newer
ÌoÉer suppliesÍ
PP²Î 8A ÇA and PPÏ
½8A !BÐdon»t have
those circuits, beÑ
cause newer CV-
½548 Òs have no
Ìanel meter.
J²N 86
.,
.,³´
.
SampLe HaLF±SaFe²
²³´Fµ s¶,i·¸
µ¶· ¸
V
¹
f'\º"»
Dear Macon,
Our MX-7338 radioac±
tive tesT sample is 10
years old. AccordiNg
to ²M 3-6665-264-10,
that's its half-life.
How caN we be sure
the sample is s³ill stroNg
eNough to test our A´/
PDR-27R radiacme³er?
Or should we just tuµ
the old sample iN aNd
order a New oNe?
SG² B¶J.K¶
Dear Sergeant
b¼j½
K. ,
Test it f
:
st ±
²
No sense tuRing in a good sample±
³e test Is sImple± TuR your AN´PDµ-27µ 's Fnction switch to 50
Place the pu¶le·active·end o¸ the sample against the set's smal
i
probe±
¹ the pointer hits
¾O
Or
more On the scale, your
test sample is sºill »K¼ ¹
it registers less, tuR it in
to your suppOrt±
Wen your new test
sample cOmes in, be sure
yOu cHain it to the case as
shown on Page 1-8 o¸ TM
11-6665½230¾12.
¿!
³
´
;I
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