"Dick Carroll;" wrote in message ...
Rob Kemp wrote:

It is not just amateur radio that is at risk
here, but any use of HF that operates near BPL installations

As well as any other radio system operating over a wide area up to the 80
MHz
limit planned. Public safety comes immediately to mind since I worked in
that fielf.

You worked in that filth?

I know that a number of states presently still use low band
VHF for state police communications using direct car to base systems as
well as many crossband repeaters with receivers covering considerable
areas operating on frequencies between 40 and 50 MHz.

Since you are an Extra in that filth, you might want to suggest that they move.

I worked as a field engineer in such a system and RF noise was an
ongoing problem.

I'm sure Roosterpoop, MO is a hot rf environment.

And with the FM systems in use, often the noise will
simply keep the squelch closed and the recever won't be aware that the
transmitting station is attempting a call.

That's bad news.

I recall one such particularly troublesome repeater where that would
occur and by the time I could drive to the repeater site the "phantom"
problem was gone. After several unproductive tries, I finally found the
source of the noise- a welder in a shop about a half mile from the
repeater site which welded only ocassionally, and those times just
happened to coincide with the repeater desense problems.

I thought all spark transmitters had to be registered.

We wound up
relocating that repeater because of it.

We?

If that sort of situation can virtually shut down a single low band
repeater I can only simagine the sort of wide area problems could be
caused by BPL.

Dick

Just simagine it.