[RFI] RFI on 1.8 mhz

[David Robbins]

that may be a good one.  but does it have to be on a specific frequency or range of frequencies??    i have a generator that sweeps through a part of 160m at about that rate depending on load.   what would distinguish the sound of that sweep from that from something else sweeping across a different frequency range?


Jan 22, 2013 10:58:50 AM, mjc5 at psu.edu wrote:


On Jan 22, 2013, at 8:00 AM, David Robbins wrote:

> 
> how often has anyone actually been able to identify a source from an audio recording?? cite cases... i would like to hear specific cases where the audio was enough to identify a specific source of a noise.


I heard RFI on North Oak Lane in State College PA this past fall. Sort of a sweeping noise, around a second apart.

I went to a web page with noise examples, and heard a duplicate of the noise, it was attributed to an electric dog fence. To verify the noise, I went by the house again, and saw the trenches the homeowner had dug, and noticed that their dog often sat outside within the fence perimeter.

The audio recording was a direct lead to identifying the noise.


- 73 de Mike N3LI -
_______________________________________________
RFI mailing list
RFI at contesting.com
http://lists.contesting.com/mailman/listinfo/rfi