[Icom] IC- 706 MK IIG Antenna Connector Problem

Sat, 5 Oct 2002 22:13:02 -0400

Dennis,

A friend of mine had similar problems with a new 706. He found that
the center pin was being pushed inward and it was hitting ground or
something inside the radio. He said there is a crimp or some means
behind the SO239 that keeps the pin/insulator from pushing inward. He
"crimped" it with a careful tap or two from a hammer & screwdriver. He
has had no further trouble and it saved him from returning the new
rig. Hope this helps....

73 de K9GPS Lee
[email protected]
[email protected]

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Dennis DeMarco
Sent: Saturday, October 05, 2002 5:00 PM
To: [email protected]
Subject: [Icom] IC- 706 MK IIG Antenna Connector Problem

Hello All,

I have a new (less than three months old) IC-706 MK IIG. When I attach
a
new Radio Shack PL-259 cable (with crimped connectors) from my SWR
meter to
the SO-239 on the back of the rig, as soon as I insert the center
piece and
start screwing on the shield, the signal drops appreciably and I can
barely
hear anything at all. As soon as I loosen the shield and barely have
it
connected to the rig, the signal reappears at the proper volume. The
cable
has no shorts.

When I tried an older cable with soldered-on connectors, the signal
stays
loud until the very last turn of the shield when the signal drops
similarly
to the new cable which has crimped connectors. It has no shorts as
well.

Any ideas on what may be causing this?  One guess is that the center
pin of
the connectors may not be thick enough when making the connection.
Could
the SO-239 be bad? Is it safe to operate with the shield not fully
connected? I have a low SWR with it < 1.25:1.

73,

Dennis KA3QOT

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