[RFI] 160 Meter Interference

[wx5l at charter.net]

Hello,
Electrical arcing is broad and does not exhibit frequency gaps like in this case 90 khz. The noise sounds like it's from a free running oscillator in some sort of electrical componet. Kinda sounds like RFI from a router/switch/hub device.
 
If Bill has a beam try and get a direction of strongest signal. With that information in hand a small portable receiver I would start walking in that direction tuned to a signal peak. This type of RFI doesn't travel far so I would expect it to be anywhere from his next door neighbor to maybe 1/4 mile. As you get closer you can collasp the whip antenna to reduce the sensitivity to get even closer.

73, Randy
> 
> From: "Jim Miller" <JimMiller at STL-Online.Net>
> Date: 2004/10/05 Tue PM 11:00:56 GMT
> To: "Bill Gaines" <gaines at wcoil.com>,  <rfi at contesting.com>
> Subject: Re: [RFI] 160 Meter Interference
> 
> Is this a 24 hr/day sound or is it night only?  Almost could be 60 Hz - do
> you have a street light near?  Or a power company transformer with problems?
> If the sound is arcing, you might be in luck - it will probably burn itself
> up before long, hi
> 
> 73, de Jim KG0KP
> 
> ----- Original Message ----- 
> From: "Bill Gaines" <gaines at wcoil.com>
> To: <rfi at contesting.com>
> Sent: Tuesday, October 05, 2004 2:43 PM
> Subject: [RFI] 160 Meter Interference
> 
> 
> I have a terrible noise on 160 and 80 meters and to a much lesser extent 40.
> I have eliminated my house as the culprit
> by shutting down the main breaker and operating the radio off battery power.
> I have also asked my neighbor to do the
> same thing which provided no clue either. This signal is about every 90 KHZ
> or so. I have recorded it in the CW position
> with no filtering. Here is the link to the file. My apologies for it's size
> but I have never done this before. Let me know if
> there is anything else I can provide. By the way...it's the .wav file...the
> other file is my mug.
> 
> Cablevision just left my house and told me in no way was it a result of
> their equipment. The telephone company is next
> then the electric company.
> 
> http://www2.wcoil.com/~gaines
> 
> Bill AD8P
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