|[AMRadio] Stealth Antennas?|
macklinbob at msn.com
Tue Jan 25 13:39:11 EST 2005
IIn a house we bought 3 years ago my daughter had an alarm system installed.
The wireless sensors on the doors and windows transmitted BLIPS on 2M.
"REAL RADIOS GLOW IN THE DARK"
----- Original Message -----
From: "Jim Candela" <jcandela at prodigy.net>
To: "Discussion of AM Radio" <amradio at mailman.qth.net>
Sent: Tuesday, January 25, 2005 10:32 AM
Subject: Re: [AMRadio] Stealth Antennas?
> the last i checked door bell transformers are
> still 60 hertz step down transformers that transform
> 120 vac or 240 vac to 24 volts ac. This should not
> cause interference. I wonder what was happening in
> your example. Any ideas?
> --- W4AWM at aol.com wrote:
> > Don't overlook those screw in fluorescent light bulb
> > replacements. They
> > really generate some nasty RF as do the X-10 remote
> > light switches and outlets and
> > the infamous doorbell transformers. While we are on
> > that subject, I recently
> > heard of a problem with the 24V control transformer
> > on a furnace that was
> > causing a lot of grief and was so bad that it was
> > even getting into the resident't
> > tv picture with what looked like line noise.
> > 73,
> > John, W4AWM
> > AMRadio mailing list
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