In article , Robert Casey
writes:

Phil, something even more basic. BPL doesn't run on batteries.
In the ham urban myth, all infrastructure will FAIL in emergencies.
Ergo, there's no BPL inteference to amateurs..

The hams in the disaster area need to talk to hams located outside the
disaster area, where the electricity and BPL systems are
still alive.

Good point. :-)

Having been IN an emergency situation when ALL the electrical
power to 10 million were cut off, the existing infrastructure got
busy with repairs and rescue anyway...using VHF-UHF which
aren't supposed to be affected by the present-day BPL.

Sunnuvagun!