[Icom] IC- 706 MK IIG Antenna Connector Problem

Sat, 05 Oct 2002 18:17:36 -0400

Dennis...The problem is, if the cable becomes intermittant while
transmitting your finals will take
a beating. That Rat shack junk is ok for CB's, but I cringe thinking about a
hundred or more watts going through it.
It has always been the most hated job of putting up new antennas, but its
one of those things that HAS to be done.
I've found some of the required tools for putting on new connectors are a
big Weller gun, good small scissors, a file, and a razor blade.
You need the gun 'cuz and iron will just make a mess, the braid has to be
cut with scissors...a knife or diagonal cutters will tear the strands out.
The holes where the shield wire comes through has to be filed to get the
solder to stick, and the outer sheath has to be cut with a razor blade.
Anything else will also make a mess.
....Dave
----- Original Message -----
From: "Dennis DeMarco" <[email protected]>
To: <[email protected]>
Sent: Saturday, October 05, 2002 5:52 PM
Subject: RE: [Icom] IC- 706 MK IIG Antenna Connector Problem


> Hi Dave,
>
> Well, I just did an experiment. There was a station reading a 5 or 6
signal
> strength and when I turned the shield as far as it can go,  both the noise
> level and station disappeared. I heard absolutely nothing -- almost like a
> squelch was on. So the only way I could copy the station is to have the
> shield partially connected to the SO-239.
>
> I'm using a homebred 20 meter dipole fed by coax. The frequency was
14.240.
>
> Do you think it's safe to transmit with the shield only partially
connected?
>
> 73,
>
> Dennis KA3QOT
>
>
>
>
> At 02:23 PM 10/5/2002 -0700, you wrote:
> >What happens when you're listing to a station when you do your test? The
> >same thing happens on my rig(s), but I find that all that's happening is
I'm
> >picking up more static without the shield connected. Tune in a QSO and
see
> >what happens when you disconnect the shield.
> >
> >Also, what frequency and antenna are you using?
> >
> >73,
> >-- Dave, WA0TTN
> >
> > > -----Original Message-----
> > > From: [email protected] [mailto:[email protected]]On
> > > Behalf Of Dennis DeMarco
> > > Sent: Saturday, October 05, 2002 2:00 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
> > >
> > >
> > > ----
> > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > Icom FAQ: http://www.qsl.net/icom/
> > >
> >
> >----
> >Your Moderator: Dick Flanagan W6OLD, [email protected]
> >Icom FAQ: http://www.qsl.net/icom/
>
>
>
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom FAQ: http://www.qsl.net/icom/