Move your ham antenna if possible.
I can run 1300 watts into ladderline six inches from one of my HR-24s with no ill effect.
My 400-foot doublet is 300 feet from the house and my trap vertical is 50 feet away.
I wish it were possible, but it is not.
This is a new rental house we've moved into on a small suburban lot. Like many hams, we don't always have ideal installation areas available. My old QTH had a Hustler 6BTV vertical in the corner of the yard. The only RFI problem I saw with that was a stubborn touch lamp that would move one touch graduation on some freqs. Also a set of computer speakers would growl on a separate antenna system during UHF/VHF xmit.
I use quality cable, all Times LMR400, RG213. All cable gets swept with the analyzer and dummy load before use. I crimp on and then solder my PL259 connectors. Have been doing so for years.
The spot I have the antenna in is literally the only place it will fit since the landlord doesn't want anything mounted to the roof. The Alpha Delta DX-CC is 41ft per leg, one leg actually doesn't even fit, I have to take it four feet over the front fence to tie down. Space limited.
It's a 35ft mast, sunk 2ft into the ground in clay and concrete, braced at 11ft, again at slanted roofline 20.5ft. Leaving 12.5ft above roofline to the feed point.
There's a 1:1 current balun 2ft below the feed point, another 6-inch 8-turn choke at the ground along with the lightning arrestor and ground rod (tied to main house ground),before it climbs the wall into the attic to enter the house. From the attic, it drops down inside of a wall and terminates to a nice wall plate bulkhead in the loft. 6ft of RG213 cables provide equipment jumpers at this point.
I believe you when you say you have no problem operating with your HR24s. I also see that several people have reported RFI issues with their IRDs. You sound like you have a little more room to operate than I do. The DX-CC runs over the top of one corner of house...it also work REALLY well for me.
I had 311 QSOs on it in two short shifts of the CA QSO party this weekend. I'm happy with it, except for this little RFI demon which I feel can be solved.
Here's another guy with a similar problem: http://forums.direct...28173#e11128173
Edited by AirShark, 08 October 2012 - 11:06 AM.