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@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@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|