[Elecraft] OT Powerline Wifi extenders

[Jim Brown]

On 10/22/2019 12:56 PM, Joe Subich, W4TV wrote:
> The typical source of noise with PoE is from the switching supply -
> either connected to a power injector or in some terminal device
> (e.g. Router/Modem) with the Ethernet cable acting as the antenna.
> Common mode chokes on the Ethernet cable as close to the device as
> possible should help but experimentation (and replacing the noisy
> power supply) will probably be necessary.

If that is the ONLY source, it might be better to replace it with a 
linear supply of suitable current rating. I wouldn't be certain that it 
is the only source -- perhaps there's some power conversion happening at 
the unit (that is, up on the pole), in which case a choke there would 
also be required.

But that doesn't answer the key question I asked Bill -- is the system 
noisy or not.

73, Jim K9YC