[RFI] 1Hz Noise
n6wg at comcast.net
Tue May 23 11:37:07 EDT 2006
Here is an idea then.
Since the noise comes from a well defined direction,
you could use one of the antenna noise cancelling devices
like MFJ and others sell.
Careful adjustment would pretty much reduce the signal to a level
you could just ignore. Since it is a stable situation, you
probably would not have to spend a lot of time adjusting, unless
a band change might make some tweaking necessary.
Good luck and 73
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com]On
Behalf Of Kelly Johnson
Sent: Tuesday, May 23, 2006 8:25 AM
To: rfi at contesting.com
Subject: Re: [RFI] 1Hz Noise
Thanks for all of the suggestions. An electric blanket seems the most
likely source. I live in a suburb. I don't think there is an
electric fence anywhere near me. None of my neighbors have babies or
toddlers so a baby monitor seems unlikely as well.
Unfortunately, the neighbor I suspect has the problematic device is
also the same neighbor that called Code Enforcement to complain about
my new tower before the antennas were even mounted. I don't think
they will be very receptive to my attempts to eliminate interference.
Luckily, my neighbor's house is in a direction that I only beam when
working VK/ZL or AF/EU longpath. I can't hear the noise when beaming
the usual EU, US, AF, or JA directions.
> > At 03:15 AM 5/23/2006, Kelly Johnson wrote:
> >>Just got my antenna up at my new QTH and I'm trying to track down
> >>noise sources. Anyone heard a noise source that sounds like a "tick,
> >>tick, tick" at about a 1Hz rate. It almost sounds like a clock. I've
> >>heard it from 14MHz up through 50MHz. It seems to be in the direction
> >>of my neighbor's house.
> >>RFI mailing list
> >>RFI at contesting.com
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