View Single Post
  #6   Report Post  
Old July 25th 17, 08:12 PM posted to,
Gareth's Downstairs Computer Gareth's Downstairs Computer is offline
external usenet poster
First recorded activity by RadioBanter: Mar 2017
Posts: 67
Default Full wave antennae on 137kHz?

On 25/07/2017 19:58, Bob Wilson wrote:

There is a lot yet to be fully understood about access to the LF bands
in the US. But if you are under a HV line, they might well be using the
line for carrying control signals for the power grid. The technology,
PLC, doesn't play nicely with ham usage.

If I remember correctly from my time working on the design of
grid control systems (40 years and counting), it's known as
Pilot Protection and its loss may be the first indication of
a line going down.