I've used a wireless home alarm system for 13 years with hf/vhf/uhf
antennas in the attic of a 3 story townhouse. The documentation doesn't
include specs. The antenna on the master unit is approximately 13 cm.
Depending on whether that's a quarter wave or full wave, it's in the
bottom or top of the microwaves. Using my K3 at 100w all bands doesn't
affect the system. Running 50w on 70cm does affect my 5.8 GHz wireless
telephone system. I'm guessing that it's crunching the receiver front
end or getting rfi into the master's control circuitry.
73, Steve W4FMD
On 7/13/2013 1:25 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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