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 > Your search for posts made by 'whizbang' found 2 matches.

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RE: RF getting into Winnebago Furnace!!

Sounds like I need to invest in a bunch of chokes. I bought some wire wound ones from DigiKey for the T stat wires. I will get assorted clip on for the rest. Bypass caps are a good idea too.
whizbang 10/23/21 07:32pm Tech Issues
RF getting into Winnebago Furnace!!

I have a Hi-Q antenna mounted on the ladder of a 24 foot Winnebago Minnie. Keying up 17 meters at 100 watts momentarily starts the RV's furnace, even with the furnace in the off position. The other bands seem to be okay. Obviously, I need some combination of ferrites, shielding or grounding. I took the outside cover off the furnace, but, I am stumped and have no idea where to begin. (FYI -- This is my second RV installation. 13 years ago, we had a 38 foot diesel pusher with an aluminum framed body. I ran 400 watts on 80 thru 10 meters. Good matches and no RFI. Our Minnie Winnie has a wood frame. I have poor matches and RFI to the furnace. The installation on both is identical --- chokes and bypass capacitors at the screwdriver motor feeds and plenty of clip on chokes. The Minnie install initially had good matches on 40 and 80, but 20meters and up were 3:1 SWR or worse. I added a shunt coil. 20 Meters thru 12 meters are now 1.2:1, but 40 and 80 are useless (and I don't care. The antenna is too short for 40 and 80 anyway.) Suggestions???
whizbang 10/23/21 11:49am Tech Issues
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