PS Magazine - FEBRUARY 1985
PS, The Preventative Maintenance Monthly
ISSUE 387
FEBRUARY 1985
Protect your whip, and those unlucky enough to get in its Way± by securing
the tip cap. Here's a tip you can use if you have troubLe securing yours.
Wrap
6
layeRs
·
of tape
FoRce caP over tape
Completely
coveR
TiP
²rp six layers of 1/2-in tape± NSN
7510-00-582±4771,
around the whip
about two inches Fom the to³.
´orce the ball over the Tpe. µhen±
s¶rting just beLow the bottom of the
tip± start wrapping the Ball with the
saMe tape. CompLetely cover it.
´inish up by covering the baLl once
more with a 3·4¸in tape± NSN
5970²
00-419±4291.
Cover
ball once
moRe
Connection ProtecTion
Your antenna can't do its job if it isn't
¹
Making contact Fom top to bottom.
Keep alL contacts cLeAn and tight.
µhe first connection is between sections. ºoth the threaded cOpper stud of the
A ³´1095
se»tion and the feMaLe Mating section of the
AS-1730
should be tight.
If either is Loose± repLace that section.
±heck and ²leaN secTions
¼nother ½ay
¾
to hEad o¿ stuck secÀ
tions is tÁ tighten them theà back
them o¿ just a LittLe.
µhe other connection check is at the
base of the ¼S-Ä730 and the top of the
MX´µ707
Matching unit.
CoNtact anD
iNsulation iN
good shape?
ÅyeBall the Æase of the antenna
section. Is the horseshoe contact preÇ
sent and in gooÈÉ shape? If not± have
your support repLace it.
Check
hoRseshoe .³.
..´ and
buTtoN!
Is the button contact working? Êou
should be abLe to push it in easily. It
shouLd return untiL it sticks out about
l
·
8
inch Fom the basepLate.
If it doesn't± the baseplate is prOÇ
bably Loose. Screw it down snugLy.
A
tipo¿ to a Loose basepLate is a visibLe
ËÌring when tÍe whip is secured to the
matching unit.
A
loose baseÎlate can Lead to ampLiÏ
fier damage± too. It lets the horseshoe
cOntact screws grind o¿ the
MX ´µ707
's
insulator coating. ²hen it's gone± the
unit's no good. It Lets reÐected power
zap tÍe amp.
µhat grinding action is another reaÏ
son not to overtighten the whip. µoo
much Ñrce can Let even a properLy
tightened baseÒlate do damage.
µhere's no need to Overtighteà the
antenna to keep it in place± anyway.
SaÓÔ wire does the job. If yours
doesn't± check out the procedure on
Pages
50¶51
of PS
375·
Keep Õthe contact on top of the Ö
×atching unit cLean by RBbiØg it
±
down now and again with a rubber
pencil eraserÙ
-±
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