PS Magazine - SEPTEMBER 1978
PS, The Preventative Maintenance Monthly
ISSUE 310
SEPTEMBER 1978
1,
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I
r
l
AS-2731 AnteNna Update
Hold on to those requests fr the new AS-2731/GRC antenNa. The
pub, TM 11±5985²355²13 (Apr 78), is out ³³³ but the antEnna won't be
Felded 'till next year³ Anyway, the headshed already knows who'll Be
getting them, so save yoursel´ some paperwork³ The AS²2731 wIll be
used in place o´ tµe AS¶1729 antenna³
±²TE²²³ R´El µsµ
·
TM 11-2586 (Nov 55) is giving you a bum steer on the stock number
fr the RL-3 antenna reel. The rIght ±SN is 5820-0²-030-296³´
Your RT-246 receiver-transµitter is hooked up
to an AS-172¶ antenna·
Your Fequency is between 60 and 70
M·¸
You key the t¸ansmItter and a Very loud audio
tone sets you back on your heels.
Your Probl
e
¹ is probably a bad A8500 speech
ampliºer assembly, NSN 5820-00-884-24
77¹
Have your organization man replace it Pronto.
52
-·±
²³´µ
¶¸¹.
"'
r=;±²
SeeiNg red? Bet¶e· StoP
c
.
¸
:,1
±
You TD²860/TRQ²25 aNd ²25A
_ -:
²
demultiplexer operators better
±
³
:
,
KNo
,
that red means stopº »¼ yoU
¹º»
´µ
'l
.±²_, -"³
don t, you can put yoUrsel´ oUt o´
U
business³
T½e maNual tUN¾Ng KNob will
Oi
¼u½¾
¿WÀÁÂ
·
0
¶¸
Manual
²
0'³
(
¹º»¼
tuning
kNob
O³ Am-1780 DI´´er .µ
move quicKLy betweeN t½e ¿eÀ
qUency Limits o¼ yoUr setÁ 5 and
30 ÂHz³ »´ yoU frce it, the KNob
will coNtinue to turn, too³ ÃUt
that slips the gear on the sha´t
aNd puts the set out o´ syNch³
Which
means
Äowntime ´Or
calibration³
SolUtioN? SiÅpleº Æhen yoU're
tUNing, watch ´Or the red line
below the 5 aNd above the 30 on
yoUr ÇRÈQ dial³ TheN, be preÉ
pared to stop³
µO ROÃGh sÄÃf
µEEDED I
l
i±
F
´µ
'
Å
e
¶
#
1
;:º»¼
I
ON
Æ
Ç È É
ÊwËÌ
Í
CKT BkR
OFf
Easy oN
di¶·¸R
kNob
\
-.²=³
´µ
¶
·
A
¸
u
¹
D
º
»0
¼
½
3
N
½¾
¿À
A
¹
º
'
•
½
-_,´
µ
Î
» ¼
»¼ you put t½e mu
Ï
cle to the AM
ÐL
780 aud
Ñ
o
;
Êequency ampliËer diÅmer kNob, yoUr set takes
ÁÂ
a tUr
i
Ì
_
r t½e worseº
[
ThÍs ÎttLe KNob
Ï
doesn't move Ðr to do its job
aNd catches when it's done³ Ñuscling past this
point puts a twist in everyt½iNg Òe½iNd the iNd¾Ó
cator light³
Wires twist, whic½ puts a straiN oN the assemÔ
bly's insUlatorº Pretty sooN Á Õoo´ Á yoUr
amÖL¾Ëer s½ort²circUits³
ÃriNg yoUr AÑ×1780 bacK aliVeº ØKe it easy w½eN yoU adjUst t½e light
or replace the lamp³
s3
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