Both I and K0CF have wireless home security systems that I think run on 900 MHz 
or so.  We both run in excess of 500 watts to K4KIO hexagonal beams at 35 to 40 
feet.  Our towers are bracket to the house.  Neither of us have experienced any 
problems.

David K0LUM

On Jul 13, 2013, at 12:25 PM, David Andrews wrote:

> I'm thinking of installing a wireless home security system running on 868
> MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
> balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
> they can share please? Am I likely to trigger the alarm?
> 
> 
> 
> Thanks
> 
> 
> 
> David G4CWB
> 
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