[RFI] Noise location tools
Dave Cole (NK7Z)
dave at nk7z.net
Fri Jan 19 14:41:20 EST 2018
Can the person with the touch lamp resend the image to me directly
please... I deleted it.
73s and thanks,
On 01/19/2018 11:32 AM, Dave Cole (NK7Z) wrote:
> In fact, I am building a web site with known SDR gathered signatures of
> RFI. So... If you know the source, for sure, please send me a snapshot
> from your SDR. I will have a page up by months end with RFI snapshots
> and what caused it.
> 73s and thanks,
> On 01/19/2018 11:16 AM, Jim Brown wrote:
>> On 1/19/2018 7:41 AM, Karin Johnson wrote:
>>> I have successfully found about a dozen street lamps which had failing
>>> sodium vapor lamps causing RFI.
>>> The spectrum of the RFI was primarily located between about 5 MHz to an
>>> upper limit of 8 MHz.
>> Great info, Karin. The next time this happens, can you grab some RF
>> spectrum plots with waterfalls? I've found that these signatures can
>> be quite helpful in providing clues about possible sources. The
>> availability of low cost SDRs makes this easy.
>> 73, Jim K9YC
>> RFI mailing list
>> RFI at contesting.com
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