[Lowfer] Last Chance on 136 kHz Rulemaking

[Dexter McIntyre w4dex]

JD wrote:
>>>> 3. They mention the worry about interference to hams - has anyone 
>>>> ever seen a PLC signal?  With our narrowband techniques 
>>>> interference should not be a problem.
>
>
> Yes, actually, we've all seen PLC signals.  They're all over the 
> entire LF spectrum, though less so in the NDB bands and above.
>
Perhaps I have seen/heard a PLC but if so I didn't know what it was.  
How can I identify a PLC?  I have a 100 KV transmission line about 500 
feet from my home that connects two main substations.  Of course though 
I know not all transmission lines will have PLC control.  My problem 
with the local utility is their TWACS system.  That causes all my UPS 
units to switch each time the meter reports plus the signal wipes out 
all weak signals up through the AMBC band.


Dex