On Tue, 09 Sep 2003 13:51:33 GMT, "Peter O. Brackett"
wrote:
....

It turns out that this is an extremely useful value to know if one is
interested in designing or operating an effective and feasible analog or
digital talker echo canceller to suppress echos on the line and allow the
receiver to receive remotely generated signals in the face of extremely
strong incident signals.
....

I'd like some thoughts and comments these arcane and exotic functions and
about
comparisons between such functions for transmission systems with real Zo and
those with complex Zo.

Thoughts, comments?

Hi Peter,

Well, if we scrapped all the antennas, killed the RF and
interconnected a million miles of transmission line - this might be
interesting. We could call it telephony. The next wave would be gold
plated 00 wire gauge lines connected to dusty rock band amplifiers
(new-age linears) that had been sitting dormant in the garage since
adolescence. Cecil could then argue the use of the Wah-Wah pedal to
conjugate the group velocity.

The topics discussed would be rec. but not radio. maybe amateur.
(amateur telephony?) and certainly not antenna. There ya' go! Design
a telephony antenna to eliminate all these transmission line problems.
Do it from first principles too. ;-)

73's
Richard Clark, KB7QHC