Friday, July 25, 2014


This is a peculiar CW, and if you look on Youtube you'll find another dozen recordings of the same broadcast, all of varying fidelity.

That is the sound of a maritime coastal station SVO in Pirgos, Greece. They broadcast on 8424 KHz providing VHF and high frequency radio telephone and high frequency simplex teletype over radio (SITOR) services to seagoing vessels. I'll post about SITOR some other time. More here.That message is "DE SVO" then a long beep.  DE is a shortwave abbreviation for "this is" making the message: "This is SVO."  


  1. What's the point of that? It's just kind of squatting on that frequency.

  2. I think it's just a QSO they run when they're not airing programming.. which is a lot of the day I'm told.

  3. Ah, I see. I got the impression from some of the Youtube stuff that it was just that 24/7. Makes sense now.