Low Frequency Radio and subs

[David Morris]

>From: jverity at mindspring.com
>these ultra low frequency waves are able to reach subs deep beneath the 
>sea. I don't know what kind of antennas the subs use, but probably a long 
>wire trailed behind them.

This seems like a very venerable setup.  One snag and there goes the signal. 
  Maybe it's on a continuous-feed spool, like an underwater weed-wacker?

DM
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