[Mobile-Portable] Iron Horse 40m Ground?
Chuck Mabbott
aa8vs at yahoo.com
Mon Jul 19 05:53:53 EDT 2004
Try the setup without the spring and see if that
changes anything
73 Chuck AA8VS
--- Jay Eimer <ad5pe at familynet.net> wrote:
> Okay, here's one for y'all.
>
> A friend of mine (KE5UL, Bill Lund) has a Jeep
> Cherokee and a 706MkII-G.
>
> He picked up an Iron Horse 40m single band whip.
>
> The mount is a "side-mount" (metal bar with two
> holes - one at either end)
> that goes under the ball of a receiver hitch. The
> other hole has a pass
> through with 3/8x24 socket on the top (matches the
> whip) and an SO-239 on
> the bottom.
>
> We passed the coax out the hatch and hooked it up to
> the bottom. On top we
> put on a large spring (something he had - it's old)
> that was a 3/8" stud on
> one end and 3/8" socket on the other and then the
> whip.
>
> NOTHING.
>
> So I got out the antenna analyzer, and the needle
> was swinging all over
> everywhere - seemed to be when the antenna was
> moving. Of course, these are
> pretty flexible, with 4' or so of "stinger", so it's
> always moving, even
> when the Jeep is parked. SWR would go from 2.5 to
> infinity and back, about
> once per second. Steadying the antenna helped, and
> we appeared to get it to
> tune, and it hears pretty good. But no one answers
> us. We got one contact
> who reported us "very weak", 2x2. But as it stands
> now, there's no way this
> antenna is going to work as it stands.
>
> Tried another antenna and all is fine. It's just
> this one. Since the
> analyzer wouldn't steady, I suspected a bad
> connection, most likely with the
> spring. But I thought I'd ask here first, in case
> anyone else had
> encountered similar problems. Is this inherent in
> the Iron Horse antennas?
>
> Thanks,
>
> Jay
> AD5PE
>
> ----
> Your Moderator: Dick Flanagan K7VC,
> mobile-portable-owner at mailman.qth.net
>
=====
Chuck Mabbott
http://www.aa8vs.org/aa8vs
Whoever says, "money can't buy you happiness"
should turn their savings over to me, then stand
back and be prepared to stand corrected.
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