Tom:
Try putting a .01 capacitor accross the terminals of the thermostat.
I have had this happen and this fixed it.
I hope it works for you.
73
Lowell W8QIY
----- Original Message ----- 
From: "T Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, June 01, 2006 10:09 PM
Subject: rfi question


> Hi, all.
>
> As many of you know, I have been working with a Predator screwdriver-type 
> HF
> antenna on the back of an 18-foot camping travel trailer.
>
> Last week-end, I had the chance to test out the antenna extensively, and 
> my
> results were surprisingly good on 75, 40, and 20 meters.  I use the 
> antenna
> with a 102-inch whip, and tune it with an old SWR meter and a Conway 
> tuning
> aid.
>
> I do have one problem, though.
>
> It seems that every time I keyed the rig on 20 meters, either in SSB or 
> CW,
> I would kick the trailer's air conditioner off.  Nothing else seemed to be
> affected--just the air conditioner.  After the air conditioner tripped 
> off,
> it would re-start itself again, but then get kicked off when i keyed up
> again on 20.
>
> Obviously, there is some RF getting in somewhere and doing the tripping.
>
> I have the Predator antenna grounded to the frame of the trailer, and the
> IC718 HF rig grounded to the frame also.  Obviously, that's not 
> sufficient.
>
> Should I install an earth ground?  Would that help?
>
> Does anyone have any other simple suggestions or explanations for this
> oddity?
>
> Thanks much, and best 73 from Tom Behler: kB8TYJ