[PPRAANet] Update on 146.52 MHz Interference

Bob K0NR - email list list at k0nr.com
Fri Jul 29 13:15:30 EDT 2016


The interference on 146.52 MHz has been tracked down and corrected. It 
turns out there was a power surge at the radio site on Almagre Mountain 
which damaged a number of pieces of equipment. A transceiver at the site 
malfunctioned and ended up in a mode that caused the problem. It was 
found and turned off this morning.

Lots of people contributed to tracking this down in a team effort but I 
won't try to list them all. However, I will note that Paul Signorelli 
W0RW did some excellent direction finding work on 2m and ultimately 
identified Almagre as the likely source of the problem. Thanks, Paul!

73, Bob K0NR

On 7/27/2016 2:58 PM, Bob K0NR - email list wrote:
> Just a quick update on the 146.52 MHz interference we are hearing in 
> the Colorado Springs area.
> The signal continues to show up intermittently as a burst of digital 
> noise lasting for a few seconds. The repetition rate varies 
> dramatically from "hardly ever" to "every few minutes". Sometimes 
> other signals are present that are not digital in nature. A bunch of 
> local hams have been trying to track this down...thanks to everyone 
> that has assisted. We have actually learned a lot about the source of 
> this signal but obviously have not yet remedied the problem.
>
> Mostly, I wanted to let you know people are working on this. If you 
> have questions or comments, you can direct them to me off the list 
> (bob at k0nr.com).
>
> 73, Bob
>
> -- 
> Bob Witte K0NR
> bob at k0nr.com
>
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-- 

--
Bob Witte K0NR
bob at k0nr.com



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