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Re: Bruins vs. State of Union

Garrett Wollman posted:
>Kahn's AM stereo system used ISB (Independent SideBand) modulation
>instead: left channel in the lower sideband and right channel in the
>upper sideband.  The AM detector in a mono receiver naturally mixes
>the two together, if the radio is tuned exactly on center frequency.
>The advantage of this system was that it could be effectively decoded
>with two mono (analog-tuned) radios, one tuned slightly low and one
>tuned slightly high.

Thus a listener with a Mono AM radio could indeed
choose one channel or the other by up or down tuning
with the Kahn system.

Which then asks the question - what system does/did WBZ use?