[NLRS] wierd noise update

Bryan LaPlante [email protected]
Mon, 18 Feb 2002 09:17:24 -0600


The loudest packet station is N0NAS-10 on 144.39, which does S9++ here, but
doesn't seem to correspond to my noise.

However, when I flipped the radio to FM mode, I see regular periodic jumps
in the s-meter all across the weak signal band, plus noise peaks of S2-S3 at
several places.  Interesting that the S meter doesn't respond to it on SSB,
but does on FM.  Anyhow with my HT I hunted down some of the noise sources:
1) Laptop on downstairs.  Turned off, still have noise.  2) late last night
I found that a PC in the basement (my firewall) is doing the big noise peak
on 144.0xx.  Not sure if it is just the PC, or is PC + network (100BaseT) or
just the network.  Strong signal radiating from the network cable.

In the next couple of days I hope to figure out whether it is the network or
the pc, but it's looking like it is some of my own equipment, in the
basement, that is getting picked up by the antenna (it is somewhat
directional, to the S, my antenna is on the north side).  The way the meter
jumps I'm guessing it is related to network traffic.

73 - Bryan - kb0obt