Loggings > North American Shortwave Pirate

Sternradio 6960 AM 1942 UTC 6 APR 2025

<< < (3/3)

Ron Hunsicker:
2051.  Tuned in at 2023 to some thin audio.  I understand that at 2045 they began broadcasting in stereo.  OM gave instructions about how to tune in with a Kiwi SDR.  35343.  14,000 Hertz bandwidth.

Ron

dxwingr:
2053utc SIO333
music

JustGreg:
I have it with a good signal (SNO 434). Male and Female talking,bgiving email address in English and German.
2104 Off the air. Thanks for the show.

sternradio666:

--- Quote from: ChrisLobdel on April 06, 2025, 2030 UTC ---2028 Jerk - Neurotic Outsiders S7 with slow deep fades
2032 Kerosene - Big Black
2050 Me I funk - KMFDM
2058 OM/YL talking in German?

CQUAM or Kahn Stereo?

--- End quote ---
Kahn ISB Stereo.  Sort of.  Inspired by.  More of a mid side sort of modulation I'm doing.  The LSB and USB each get mostly left and right channels, but highpassed from like...200Hz or so, in a rather sloppy sort of manner, phase shifted.  Each is modulated on their own, with a carrier that is -45 degrees offset from the main carrier.  Mind you, these two sidebands are DSB-SC.   Anyways.  Then you have the "mid", that is getting the L+R but bandpassed from say...30Hz to 4000Hz or so.  However, this also gets the carrier.  This is where the oontz of the signal comes in!  Ahh yes!  The magic of low level mudlations! 

The end result is that the upper reaches of the sidebands carry the stereo signal and the lower end is mostly mono.  It's not quite what Kahn specified in any of his patents, but I suspect it might be my own idea that I came up with.   I tried the CQUAM thing, I wasn't entirely impressed with the results, there is the chance I was doing it wrong, too!

Navigation

[0] Message Index

[*] Previous page