Topband: Nasty QRM From ??

August "Gus" Hansen augie.hansen at comcast.net
Fri Jan 24 10:40:35 EST 2020


On 1/23/2020 11:59 PM, Dick Bingham wrote:
> ...
> These signals are frequency stable and not drifty. Shutting down the
> house-mains with the receiver battery powered does not kill the QRM.
>
> SO, it looks like something somewhere is generating this junk that runs from
> the BC-band to >20MHz.

Shutting the main power off won't stop cable modems and routers from 
operating if they have battery backup. Some of these devices can be 
quite noisy. Also, do you have any UPS units keeping other equipment 
alive during power outages?

Good luck,
Gus Hansen
KB0YH



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