[RFI] New Unidentified Noise

[Dave Cole (NK7Z)]

Wild guess, and assuming it is on 7X24-- an Ethernet over power line 
device used in a home.

The ham band filtering is a characteristic of the Netgear brand  of 
Ethernet over power line devices.  Others may filter, but I know Netgear 
devices filter.

I located one a year of so ago, which is how I know about it.  It was 
filtered for HF, but not VHF.

73s and thanks,
Dave
NK7Z
https://www.nk7z.net

On 07/13/2018 12:57 PM, Tony wrote:
> All:
> 
> Noticed a new wide-band noise that seems to span from 12 MHz to 50 Mhz. 
> The rapid pulse sounds sounds similar to car ignition RFI and appears to 
> have a square wave pattern. I receded a video of the noise using an SDR 
> Dongle and was wondering if someone might recognize it.
> 
> Video Link: https://www.youtube.com/watch?v=7WVyZFGdtKQ
> 
> The noise is coming from one direction and the device creating the noise 
> seems to have ham-band filtering to some degree i.e., there's a lot more 
> noise out of band than in-band on HF. It's a different matter on VHF 
> though: it's pretty strong in-band on 50 MHz.
> 
> Any help would be appreciated.
> 
> Tony -K2MO
> 
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