[Milsurplus] overheard telephone conversations

[Hubert Miller]

I'm thinking i heard in the 1960s radiotelephone conversations in AM mode,
am i wrong. What about those 'voice marker' repeating announcements from the
IT&T stations? When the traffic came on, did they use SSB or inverted SSB ?
I seem to recall hearing some AM call type traffic; one side only; i assume
the other
half was on another freq.

What we needed back then was a way to digitally record the spectrum so we
could have a look today. I recall some really laughably outrageous CW
signals in
the 8 MHz marine bands.
-Hue 

-----Original Message-----
From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Ralph Cameron
Sent: Tuesday, May 31, 2016 11:30 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] overheard telephone conversations

I recall listening to many commercial point to point radio stations in the
early 50's using inverted sideband, unencrypted as a means of security. If
you could tune the bfo and stand the whistle from the offset, you got
intelligence.

Ralph
VE3BBM