|Subject:||Re: [RFI] ECM...etc.|
|From:||"Alan NV8A (ex. AB2OS)" <email@example.com>|
|Date:||Sat, 04 Sep 2004 12:24:59 -0400|
In Brisbane, Australia 35 years ago we had a reduced rate for our
electric water heater. The utility authority (the City, as it happened)
could switch it on and off any time they wanted by sending the
appropriate sequence of audio tones superimposed on the line. If we
still needed to heat water during one of the high-demand periods when
the reduced-rate power was off, we could flip a switch and heat our
water with standard-rate power.|
No RF imposed on the power lines to radiate all over the place. All that would be necessary to enhance the system would be to use different audio receivers responsive to a variety of tones.
Alan NV8A (long-ago VK4AFE)
On 09/03/04 06:53 pm Dave Bernstein put fingers to keyboard and launched the following message into cyberspace:
If BPL gets deployed, we'll need some ECM.
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