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2M at 50watts setting off smoke detectors

Feb 23rd 2015, 18:18


Joined: Oct 23rd 2012, 18:54
Total Topics: 0
Total Posts: 0
I bought a Yaesu FT-8800R/E 2weeks ago. I'm using a mobile whip antenna with a mag mount for now, until i figure out what base antenna I want to use with it (needs to be mounted in the attic). I'm fine up to 20watts but as soon as I go to 50 watts and key the mic, it sets off the smoke detectors... I see where ferrite core beads can help so I ordered some (not arrived yet) but I wanted to know if getting a better coax cable for the antenna will be a better solution?

Any suggestions would be greatly appreciated. I'm a new ham to the tech speak needs to be brought down a bit if you can. I'm learning, just not as fast as I would like (and I have no electrical background)...

Thanks in advance for the help!

Feb 24th 2015, 02:43


Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
What are you using as a "ground plane" for the magnetic mount antenna?
Feb 25th 2015, 20:12


Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
How Close to electrical wires would the antenna be in the attic?
I'd also Look at grounding, I lived in apartment for a while years ago and had a touch lamp that "cycle" when I'd key up.
A good Ground and Antenna tuning fixed the issue,How ever, that was on H.F. Just some thoughts for you.

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