Guys,

Thanks for your replies so far.
The buzz/noise is irregular. Not always, and when it's there, it's not
always audible on the same frequencies.
I am afraid it's something in the neighbourhood. Lots of houses around,
so it probably won't be easy to find out exactly where it comes from.
I also hear it when I connect a simple wire as an antenna, so I think
it's not a ground loop?
I made a recording of 1602 kHz. this afternoon. You can hear the
buzz/noise there, although not as strong as previous times.
Maybe someone can tell more by listening to the audioclip?
It is at http://mark-veldhuis.nl/1602.mp3 .

--


73',


Mark Veldhuis.

Mark Veldhuis wrote:
"The buz/noise is irregular."

A small battery operated portable containing a loop antenna will be
found to have a nulled response in a certain sense aimed toward the
interference source. Use it to find the source.

Best regards, Richard Harrison, KB5WZI

On Fri, 5 Aug 2005 14:55:33 +0200, Mark Veldhuis
wrote:
I made a recording of 1602 kHz. this afternoon. You can hear the
buzz/noise there, although not as strong as previous times.
Maybe someone can tell more by listening to the audioclip?
It is at http://mark-veldhuis.nl/1602.mp3 .

Hi Mark,

I listened several times and it sounds like white noise with maybe a
hint of programming. However, that is the problem with noise, hearing
"things." I would not call it buzz at all.

There also appear to be two weak and broad resonances, but this is
from the crude spectrum presented by the WinAmp display. I used to
have spectrum analyzer software that would give a waterfall display
that would be useful in this situation, but I no longer have it
installed.

That aside, it actually sounds quite normal except I would expect some
broadcast activity near that frequency there in the low country.

73's
Richard Clark, KB7QHC