PS Magazine - TB 43-PS-447
PS, The Preventative Maintenance Monthly
ISSUE 447
FEBRUARY 1990
Coupler
Backing
PLate
FEB90
Remove
pin
from maTing
sr
on
b±om oF
²ckin
G
³late
aNd ´µ
bom
39
f you've been getting
a hIgh voltage stAnd±ng
wave rat²o
(VSWR)
From
youR No.
1 f
anTenna
system, it coULd be due
to a grounding p³ob´emµ
S²nce tHe anTenna and
co¶p·er are mo¶nTed on
a f²berg´ass adapte³, yoU
have to make sU³e you³
connectIons
a³e
good¸
OTHe¹wiseº
too
mUCH
voLtage ²s reFLected back
inTo the
±
rad²o and tHe
ResULt Is a high
VSWR.
»he
way
to
p³evenT
thaT is to sand aLL maT²ng
s¶rfaCes oF the adapToR
p´ate and back²ng p¼aTe
to bare meta´½ »Hen coaT
the exposed meta¾ wiT¿
coRrosIon resisTant com-
po¶ndÀ
NSN
8²³²-´-
142µ¶·7·,
to he´p preÁ
vent coR³osionÂ
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