"Frank Dresser" wrote in message
news

"Steve Stone" wrote in message
et...

You won't hear much of anything under 400 mhz once broadband over
power lines ramps up to full
bore.

Do a gOOgle search on BPL,

Steve

I'm lazy. How 'bout you gOOgle up some links concerning this "You won't
hear much of anything under 400 mhz " business?

Oh, yeah. Don't forget to share your knowledge with the TV and radio
networks. For some reason, they don't seem concerned.

400 MHz is a bit of an exaggeration. BPL will cause considerable
interference up to it's limit of 75MHz, and may cause some harmonic
interference above that (it IS square wave after all, and high in harmonic
content).

It won't (or shouldn't) affect the AMBCB, since it is supposed to start at
1.8 MHz. However, there have been several tests performed by hams and some
labs (see the ARRL website www.arrl.org), and several countries have already
banned BPL because of extreme interference to other services, including HF
broadcast and amateur radio services. I don't remember the exact numbers,
but basically if you are within 30 feet of a BPL line, you will receive in
excess of S9 (some tests have shown 30 dB over S9) of interference.