[Hallicrafters] RFI

[Jim Wilhite]

Mike I would strongly suggest, as Glen did, to let the alarm 
company deal with the problem.  This avoids any liability on 
your part for proper operation of the system.

Jim/W5JO




> Hello everyone,
>
>
>
> I got on 75M AM last night testing out a new antenna 
> (multi-band trap
> inverted vee for 80/40/20 I picked up at HamCom). No AM 
> activity that I
> could hear at 3880 so I dropped down to about 3875 and 
> broke in on a SSB
> group. The antenna seemed to be working fine.
>
>
>
> Then, the XYL appeared in the shack holding the phone. 
> Seems our next
> door neighbor was calling complaining that I was causing 
> their security
> system to go off.
>
>
>
> I was transmitting using a B&W 5100B barefoot at about 90 
> watts output.
> This rig has a built-in low pass filter. No tuner was in 
> the line. The
> rig loaded up fine. The antenna is fed with coax.
>
>
>
> This is a new one on me. Anyone ever have trouble with RFI 
> getting into
> a security system wreaking havoc? Any suggested fixes or
> trouble-shooting I could do?
>
>
>
> For the hallicrafters list, I was receiving on an SX-101A.
>
>
>
> For the Johnson list, my Viking II is about ready for an 
> on-air test.
>
>
>
> Thanks in advance for any help.
>
>
>
> Mike Langston KL7CD
>
> Dallas-Ft. Worth