PS Magazine - TB 43-PS-429
PS, The Preventative Maintenance Monthly
ISSUE 429
AUGUST 1988
"I,. ·±\²
.
³
\.,
±²³
±"•²: ³´µ
Sometimes timing is everything. Just ask a homerun Hitter, a grenade thrower,
an auto mechanic .
.. or an AN/GRC-106 radio set operator.
Radio operator? Sure, you operators Have to pay close attention to Posted time
limit± or you won't be oPerating.
You need to wait ²0 minutes for that big AM to warm u³ befOre apPLying any
power. If you don't, the ³ower surge couLd blow a coLd Power tube.
2-Minute WarNing
You get onLy
2
minutes to tune and Load your antenna. That'± firm. Trying to
stretch
2
minutes to 3 or more overheats your radio and blows final amplifier tUbes.
O´cE I´ TU´E,
yoU hAvE
±
mI´UTEs
AUOtl¶
44
´f you hit
²
minµtes and you're not
loaded, sLiP your ¶· RESET switch to
¸¹ERAºE
and
your
receiver»
¼ransmitter's SERV´CE SE½ECT¸R to
S¾ANDBY¿
Give your set a 5Àminute cooLing oF
period, then try to Load yoUr antenna
again.
All the cards are not stacked against
yoU in thi± game of "Beat the CLock,Á
though. ¶ere are some coÂerÃcutting
and timeıaving ti³s you can U±e.
AUG 88
ᵦ
StaÅt with the tune and Load cHart on yoUÅ set. ´t Put± yoU in tÆe ballParK wHen
you try to match the radio and antenna.
THere are gUides on the chart, ±o use the right guide±. Çor examPLe, if you're
u±ing the ²5Èft whiP antenna, use that guide, not the 50Äohm guide.
0
15 FooT WHIP aNTENNa
'
:
50 oHM DouBLET aNTENNa
³
FREO ME LoA
fO
TNE loA
´R!O
tNE LoA
3
15µ¶
¸
&
•
2¹º
:
40
»¼½¾¿ ÀÁ
Â
Ãľ¿ ÅÆ
Ç
0
Èɾ¿ Ê
ÀÁ
»Ë½¾¿6Ì
Â
Í9ÎÏ
Ð
'
¸
Ñ
a
´REO
ÒNEÓoÔÕÖ
×iØ
LoGGING
0
CHaRT
ÙREQ ÚVNE LoA
´REQ HÛE LoA
FREQ Ü Ýom
Þßà
áâ
ãäåæ sç
&
èéêë
cì
íS
Ë 6Ì
ïð
»È ÀÁ
ñò
Remember either guide is onLy giving you a baLLParK figure. You Éave to fine
tune to put the needLe± dead center. Save yourseLf ±ome time next tri³ by logging
final readings in on the chart, too.
If the chart is mi±sing, order a new
one with NSN 7640Ä00Ä003Ä8085. This
NSN is not on the AMÊÇ, so Ërder on
DD Çorm ²348Ä6 Using RIC Bl6.
Êon't use tÉe ²00̶z dial when ±etÍ
ting Îeq± on your RT. You won't be
able to tune or load because your set wilL
be oF fÏequency. Ðse only the first 5
dial±. Numbers to the Left of the decimaL
point are M¶z; those to the right are
Ѷz.
AUG 88
45
0
·¸
¹
1j
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