We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: Wandering Tones? 7076usb 0237utc+ 4/24/2012  (Read 1061 times)

ETM71

  • Guest
Wandering Tones? 7076usb 0237utc+ 4/24/2012
« on: April 24, 2012, 0239 UTC »
Wandering Tones 7076usb 0237utc 4/24/2012 : Blocks of wandering (up and down) tones that run for abt 10 seconds or so w/ roughly equal pause between. Sounds like two different streams going at once. Not sure where it's centered exactly, just seems to me to be strongest on 7076kHz.

Every few "blocks" it seems to modulate (musically) to a slightly different "key".

I'm sure someone can ID it, but I'll post a clip in a bit, just in case no one else catches it--still running at 0245utc.

« Last Edit: April 24, 2012, 0334 UTC by ETM71 »

cmradio

  • Guest
Re: Wandering Tones? 7076usb 0237utc+ 4/24/2012
« Reply #1 on: April 24, 2012, 0403 UTC »
Hi,

Can you please use a file site we don't have to sign up to hear the file?

Thanks!

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 24384
  • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Re: Wandering Tones? 7076usb 0237utc+ 4/24/2012
« Reply #2 on: April 24, 2012, 1121 UTC »
Yet another ham MFSK type mode?
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree

ETM71

  • Guest
Re: Wandering Tones? 7076usb 0237utc+ 4/24/2012
« Reply #3 on: April 24, 2012, 1318 UTC »
After poking around, I found this link with examples of waterfall displays for different modes, and the one I saw with Sigmira looked like the one here for the JT65 mode http://hfradio.org.uk/html/digital_modes.html

Just wanted to ID it. Knowledge = One less post by me, asking "What's this?!?", when everyone else knows, "Oh, that's just M45SQ-t-27b/6-R2D2 mode".  :)
« Last Edit: April 24, 2012, 1351 UTC by ETM71 »