Especially since my Flex 5000, no antenna plugged in at all, have a
-135db baseline....
Plus in the ant, and a really good day is -100db noise floor. Depending
on band of course.
Steve WA7DUH
On 1/27/2012 4:46 PM, William H. Fite wrote:
Urbanoid that I am, I wish I had a noise floor at -145dB!!!
On Fri, Jan 27, 2012 at 5:04 PM, Mark Lunday<[email protected]> wrote:
Thanks, Dan. I will make recording and pic and send to you off board.
Just
noticed today, need to correlate observations more with weather as you
suggested
Mark Lunday, WD4ELG
Greensboro, NC FM06be
[email protected]
http://wd4elg.blogspot.com
http://wd4elg.net
-----Original Message-----
From: K0DAN [mailto:[email protected]]
Sent: Friday, January 27, 2012 3:40 PM
To: Mark Lunday; [email protected]
Subject: Re: [Flexradio] weird noise source popping up
Mark:
Over the past few months I have been logging and tracking power line noise,
which turns out to be a composite of power line noise PLUS a variety of
local noise sources...
I have seen some "noise humps" across the baseband (these come and go),
also
have seen a few different wave forms travel up and down the band(s). I
think
some of this is spread spectrum, some is computer or power supply EMI, and
others remain mysterious.
Your noise floor is probably dropping on the Inv-L because it is less
efficient and is not picking up the high-freq signals as well as your hex
beam.
You may wish to keep track of date/time, temperature, humidity, and other
factors...see if there is any pattern to when the noise appears. Also, if
you have rain, does the offending signal change?
If you can make a WAV or WMV file of your noise, I can compare it to
signatures I have been logging here.
GL es 73
dan
k0dan
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