On Jan 15, 7:00*pm, dave wrote:
Kevin Alfred Strom wrote:

It's too bad the Eton and Sony sync detectors don't provide the option
of listening only to the Q channel output. That would provide the
ability to literally listen to what was underneath any DSB/AM signal.
Some amateur experimenters have done this with homebrew gear, allowing
operation in the close vicinity of 500-kW broadcast invaders of the 40
meter band.

See the article "SSB Q-Channel Communications" for more details:

http://www.antennex.com/preview/Folder01/Nov4/ssb-q.htm

"What are the K3's binaural effects?

The K3 AFX (audio effects) creates the illusion of added space, similar
to stereo, and has user adjustable settings. *The binaural mode is
similar to binaural I-Q (please see March 99 QST)."

http://www.elecraft.com/K3/K3FAQ.htm

Does this have any bearing on SS-S-AM?