"Brenda Ann" wrote in message
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"drewdawg" wrote in message
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In ,
Jim Burgan typed:

While this thread is still alive I remember when Gilligan's head became a
radio and the skipper mentioned that if there were two of him they could
have stereo. This was years before Kahn am-stereo. Hmmmm :-\

But not years before XETRA (then XTRA) were experimenting with AM stereo
using a sort of split modulation scheme (right channel modulating one
sideband and the left modulating the other). They used this for many years.
I used to be able to use two radios, one tuned to each sideband to listen to
(very poor separation) stereo. The system was called the Kahn ISB system,
which stood for Independant SideBand.

That's what drewdawg was talking about. Kahn had a prototype of this system on WABC
in the late '50s. At the time, it was an idea called "powerside", because all the
power was in one sideband. The concept was that you could pack more stations into
the spectrum, since each one would only use on side of the channel. I think it was a
bonehead idea, myself.
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