Topband: trouble shooting techniques for noise

[Dinsterdog@aol.com]

Greetings......a couple of weeks ago, I started getting what sounds like a 
steady tone of QRM line buzz noise on my NE bevg- at excact 10KHz spacing- in 
between, no qrm at all- just a very quiet band to work DX- but the buzzing 
falls onto 1.810- 1.820, 1.830 etc........about 1KHz wide- and a small spike 
on the scope-  

None of the other bevgs pick it up- at all- and my Inv L for 160 and Butter 
HF2v only pick it up slightly- would not be noticable if I wasnt looking for 
it- 

My handheld shortwave picks it up nicely when I touch the antenna with my 
hand- if i let go of the antenna- nada-

 I cant find the source- nothing local yet radiates as being the source of 
the noise- ie: power lines, computers etc.....


The bevg's are terminated with ICE matching boxes- they all check out ok- 

The noise is in exact 10KHz steps with no noise inbetween- the 10KHz .....and 
it only appears on the 160 meter band- nada on 10-80..............the noise 
covers as far down as I can go into the commercial freqs- down to about 
1000KHz and up to 3.000MHz or so before it goes away- fading as I get higher 
in freq-

Anyone have any ideas what this can be??? I thought I'd find right away- 
computer switch, cable box transformer etc.....but to no avail- please email 
me at dinsterdog@aol.com with any ideas- thx a ton!  Paul  N0AH



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