[RFI] Noise location tools

Jim Brown jim at audiosystemsgroup.com
Fri Jan 19 14:16:02 EST 2018

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

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