Hi Miles.

23-Jan-04 17:31:00, Miles Maxted wrote to David Williams


 MM> NZ is proud of its copper,  having devised a
 MM> power and phone system that originally had just one single wire to
 MM> ensure coverage to every farm...

They piggybacked voice on a SPER (single phase earth return) powerline ?
do you know what sort of modulation they used?

 -=> Bye <=-

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