steve.root@culligan4water.com wrote:
> So Old blue helped find noise sources that were a mile and a half away? I
> can't begin to tell you all how discouraging that is....
>
> The noise here is incredible. The K3 noise blanker, set to it's most
> aggressive level, has no effect on it. I spent a year experimenting with the
> MFJ-1026 and never was able to achieve any kind of a null, much less one that
> improved S/N ratio. The noise sounds like a waterfall, it has no discernable
> characteristics when seen on a 'scope.
Steve,
Maybe more of us could help if you made a .mpg recording of the noise
with the RX in the AM mode and with a 9Khz B/W and then post it on a web
site where we all can listen to it and see if we can provide any clues
to what could produce this noise. I am certain there is some noise
sleuth out there that has heard this type of noise before and can
provide a few clues which will narrow down the search. Additionally you
should cut the main breaker going to your house while having your 160
meter radio power by a DC source.
Are you near an industrial area? Are there any oil fired furnaces
nearby? Start you own check list and determine items like time and
temperature. If none exists it eliminates potential sources and gives
credence to other possibilities.. Just don't give up as it can be
found. An aircraft capable scanner (AM mode) with a small Yagi can be
very helpful in DF'ing multiple source noise, sometimes better than an
ultra-sonic detector.
Merry Christmas and I hope a solution is under the tree this year,
herb Schoenbohm, KV4FZ
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160 meters is a serious band, it should be treated with respect. - TF4M
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