Last night we had a little rain here, maybe 1/2 inch or so.
and I was looking at the bands with the P3 again and seeing differences.
Jan 5, 2011 I was seeing noise humps about every 110kc on 160m, 60m, 40m, 15m,
12m, 10m.
Today Jan 9, 2011 I have some new pan adapter images that are showing those
humps are now every 52-54 kc apart on 30m, 20m, and 17m.
I attached the images side by side on the same page
(scroll to the bottom of the page)
http://pages.suddenlink.net/k5oai/2011-rfi-noise.html
any comments ideas?
GB & 73
K5OAI
Sam Morgan
On 1/6/2011 3:06 PM, Sam Morgan wrote:
> here is all the info I have so far:
> http://pages.suddenlink.net/k5oai/2011-rfi-noise.html
>
> the posted recordings are the ones that contained some buzz or something,
> I didn't save or post the ones that just sound like noise floor.
>
> GB & 73
> K5OAI
> Sam Morgan
>
> On 1/6/2011 12:48 PM, RFI Services' Michael Martin wrote:
>> Absolutely not. Actually the rule of thumb, for lack of a better term at the
>> moment, is just the opposite. RF signals usually travel further at lower
>> frequencies. However this is also affected by the resonance of the antenna
>> being used and the distance between the source and the antenna. If an
>> antenna is equally resonant on 80 meters and 10 meters and the source were
>> 10 meters away from the antenna the RF wave length would reach the antenna
>> at the resonant peak and would be stronger than a noise that reached the
>> same antenna at the null of the 80 meter wave length while monitoring the 80
>> meter band.
>>
>> Sorry I'm on a break from applying these principles and can't elaborate
>> further.
>> Ask your RFI investigator to call me and I'll be happy to assist him and
>> explain.
>>
>> Michael C. Martin
>> RFI Services
>> 6469 Old Solomons Island Rd
>> Tracys Landing, MD 20779
>> www.rfiservices.com
>> 240-508-3760
>>
>>
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