Hi,
Link to 24 hour recording methods...
https://www.nk7z.net/sdr-rfi-survey-p1/
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 9/10/23 12:05, Jim Brown wrote:
I strongly disagree. The FIRST thing we should do in chasing noise is to
determine whether it is impulse noise (mostly power line) or electronic
noise, of which this is an example. Once that is determined, NK7Z's
excellent method of 24 hour recordings revealing WHEN the noise is
present lets us know WHEN to chase it. And when multiple sources are
present, it can prevent us from getting confused.
I DO agree that trying to determine specific sources from their spectrum
is a fool's errand.
73, Jim K9YC
On 9/10/2023 9:09 AM, Alan Higbie wrote:
Don’s approach in this case is a good example of first focusing on
WHERE IT
IS.
Imagine how much time they saved by simply locating and sniffing out the
source.
Trying to determine WHAT IT WAS by looking at the SDR, how it sounded and
researching databases would have only added time and delayed
elimination of
the RFI.
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