[VHFcontesting] Re: [FT100] RFI/Power line noise problem

[David Morse]

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John; yep, had the same problem.

Short history; I live in an apartment complex with power lines all 
around the place. My FT100d was seeing s5-7 in various band segments on 
HF, so I geared up for a major RFI search. Bought toroids, books etc.

The bottom line is diode noise. I have battery chargers all over the 
place; you know, Sears portable drill, VHF rigs etc. When I 
disconnected all that junk my noise level dropped to s0-1, I could 
actually hear stuff on 40m.

Hope this helps
David in Denver
k0dar
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On Wednesday, Sep 18, 2002, at 07:17 America/Denver, John Geiger wrote:

> Turning to the reflectors for some help in this
> problem.  I seem to have a decent amount of static
> (s5-6) at times on HF (especially 30 meters and below)
> and on 6 meters.  I even bought a FT100D to use on the
> reputation of its noise blanker,and the NB does work
> on it at times.  Other times it even overcomes the NB.
>  I called the local power company who came out to
> check for power line noise-using some equipment that
> received in the VHF range.  They found nothing from
> power lines, but did locate 1 house several blocks
> away that was throwing out some static-it isn't this
> house that is affecting me as we tried some tests
> yesterday turning off their power, etc.
>
> The power companies conclusion is "Sorry, it is not
> our lines, we can do nothing more, good luck."  So
> what do I do now?  This noise is frustrating at best,
> and really interfering with my receiving at worst.  I
> am not ready to conclude that it is not power line
> noise, as it seems to me that most people with line
> noise problems, get them in the lower HF range, not in
> the VHF range like the power companies equipment
> tested.
>
> I have tried to locate the offending source in my own
> house, and nothing here seems to be causing it.  Cant
> seem to null it out using my miniquad-it seems to be
> coming from all directions and it is worse still on my
> G5RV dipole.
>
> I do have some noise on 2 meters, not as bad, that is
> coming from the NE-I can null this with my 13B2.  I
> also can't figure out what this is, or if the two are
> related.
>
> Anyone else been through something like this, and any
> help or ideas?
>
> 73s John NE0P