PS Magazine - MARCH 1986
PS, The Preventative Maintenance Monthly
ISSUE 400
MARCH 1986
1±
I
AN/GRC-106 Radio Set .±±
Ignore the tuning SOP on your Angry-± 06 and you can end up tuned out.
An improperly tuned radio traps power inside, zapping relays and the
2A9 stator assembly, causing the radio To overheat. ²hat means a trip to
direct support.
You can save yourself a Lot of troubLe by using the tuning and loading
chart on the front of the amplifier³ It puts you in the balLpark when you get
ready to fine tune your -106 and cuts out a good deal of knob turning.
Consult logging chart befoRe starTiNg to
center
TUnE
and
LO²D
meters.
in
gives you the tuning procedure, but
tunes out a few good points. So read
on.
Never zi´ through the settings
when changing frequencies. Allow
several seconds for the equipMent to
adjustµ
If both the ²UNE and ¶OAD
Meters refuse to
·
center, try slowly
turning both controLs at the same
time in the same directionµ If both
Meters are oFcenter to the left¸ for
exampLe, slowly turn both controls
to the rightµ
Never Leave the aMplifier's HV
RESE² in ²UNE for more t¹an two
Minutes or youºLl bLow the final
amplifier tubeµ
\•±
²hen reset the
HV
RESE² and
R²SE»V¼CESE½E¾²O»
andco¿À
tinue centering the meters Á
but for
no more than two minutesÂ
After theÃÄÅE and ¶OAD meters
are centered, perfoÆÇ
È
the ²ES²
ÉE²E» checks on Page2Ê38 of ²É
11-5820Ë520Ë10. »emeÌber, youºre
stiLl ruled by the tWoËminÍte liMit.
Îith tÏe meters
Ð
centered and the
²ES² ÑE²E» Òhecked out, your
ËÓ06 is tuned to go.
One final tip: ²aKe care mating the
Ô
interconnecÕing
Ö
cable to the PA
¾OŲ»O¶ recep×acle. If you mash
or twiØt on the cable connector,
youºll
Ù
damage the receptacÚe. ²hatºs
a DS reÛairÜjob.
Do Not MASh
OR twLs±cablE· ON tH²
P²
·
cO³TrOl
recEp³AclE
MAR86
49
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