Had time last night only to take the tuner down off the roof and put it
inside my shack, just inside the window. Extended the long wire another 60+
feet using insulated 14AWG stranded speaker wire running across the roof
from the original wire's anchor point on one edge, down to the window, so
now it's 135'+. RF ground is now a 45` length of the same 14AWG wire running
anong the deck and ground. Opened up the tuner and verified that I have
supply sufficient voltage at the tuner (13.7Vdc). Placed sleeved ferrite
cores on both the radio end and the tuner end of the control cable. Tried
tuning at 40/20/17/6m - still not working.

It's a killer when I can only work on it 20 minutes at a time. Hopefully
Saturday or Sunday I can try a bit more focused troubleshooting, assuming
the coming Nor'easter isn't too bad. I thought I'd try making it drive a
balanced dipole (if I can pick up some 450 ohm ladder line this week), 75'
each leg. They won't be straight, more like a J with the tuner at the
mid-point.


"Ivan Makarov" wrote in message
...
Jon,

get your control cable choked before trying anything else. You can use a
pair of split core ferrite beads. Put them close to the cable's ends to
stop
induced RF from getting into the circuits.706MKIIG is sensitive to that.
Better then, get a larger core diameter and make as many turns as you can
fit. Same thing applies when you want to extend the control's head
cable.
A better option would be to use a shielded cable, not TP. What happens is
that your cable works as an antenna, feding RF back into the radio which
may
cause unpredictable results. In case of the remote control head this
simply
shuts the radio down when trying to key it.
But you still should be able to get away with your existing TP cable if
you
chop the RF off at both ends.

--

Regards,
Ivan

"Richard Clark" wrote in message
...
On Thu, 3 Feb 2005 09:58:31 -0500, "Jon KB1HTW"
wrote:

... I see no discussion of choking either the transmission line nor the
control lines on this page. This is poor coverage (or I simply
scanned it too fast). This may/may not change your situation, but
using them is standard procedure.

.. Richard Clark, KB7QHC