[NLRS] 6 Meter Noise

[jcplatt1 at mmm.com]

Hi Kris.   Step one is to determine if the problem is from a signal that is
in band (real) or out of band (caused by receiver overload).   If you have
tried switching in 10 or 20 dB of attenuation and the signal goes down by
about 10 or 20 dB, its most likely a real signal.    This test needs to
occur without any preamp .... if you have a preamp in circuit, switch it
off (preamps are capable of being overloaded just like the front end of a
receiver).

In your case, it sounds like the signal may be real.    The next step is to
try to determine where it is coming from.    The best way to start is to
use your beam to get a bearing and go portable to find it (ie; foxhunting).
Sometimes you can get a clue due to changes in the signal with temperature
or time of day.    Another step you can try is to have some other locals
and semi-locals listen for you to see if they can hear the same signal
..... if they can hear it you can triangulate a bit with your beam headings
..... if they cannot hear it that tells you that you most likely have a
local signal source.

If its a local signal source your best hope is to go foxhunting to try to
find it.    The source could be anything, and I mean anything.    Being
that it seems to be pretty strong at your house, if its a local signal
source (ie; no one else hears it), it must be close.

One way you can determine if the signal is being generated by something in
your house or not is to power your 6m rig with 12vdc battery and flip the
main AC breaker on your house so that everything you own is powered down.
If the signal goes away, the source is in your house.

73, Jon
W0ZQ