Topband: RFI - 1825.5
Carl Braun
Carl.Braun at lairdtech.com
Fri Jan 15 21:17:27 EST 2016
Tony
I have similar birdies on 160 but my worst one resides at the bottom of the 75m DX window at 3790 or so. It's 5kc wide and sounds like a digital warbler. Some say its a neighbors noisy router that peaks at S9 when I switch to the southwest.
My nice neighbor lady with the megawatt solar system just informed me that they ran a horizontal "electric wire" around the top of their half acre dog pen to keep their inbred dogs from launching over the 4' fence. Ugh. Isn't that the same design Marconi used???
I plan on getting my Icom IC91 out with my three element 2m sniffer yagi and start walking the streets tomorrow morning.
Wish me luck
Carl AG6X
Sent from my iPhone
> On Jan 15, 2016, at 3:23 PM, "N2TK, Tony" <tony.kaz at verizon.net> wrote:
>
> I have a new RFI problem. It starts somewhat before sunset and lasts until
> right after sunrise, 7 days a week.
>
> It has three frequency peaks - 1817.8, 1825.5, 1828.9 MHZ in the lower part
> of 160M. The bandwidth of the worst one is from 1.824.5 - 1826.1. It has a
> raspy sound to it.
>
> I have the general direction so will be taking a walk with a portable radio
> tuned to 1825.5.
>
> It does not seem to be an external night light as none come on this early in
> the area that I could find so far.
>
> Very little signal on the second harmonic 3.651. Similar sounds in the same
> direction but not as strong on 1753, 1760, 1764, 1782, 1871, 1883, 1890,
> 1902, 1948. Don't know if these are related the ones on the low end of 160M.
>
>
>
>
> Any ideas what may generate RF at these frequencies that can help me to
> shorten my search?
>
>
>
> 73,
>
> N2TK, Tony
>
> _________________
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