S

[SV1XV]

This morning at 04:00 UTC I noticed the "S" beacon/marker transmiting
on 6752.0 kHz CW. Good signal in Athens, Greece. Ended abrupty at 04:05 UTC.

[HQ180]

Oct. 18 time 1400 utc  S coming into the SDR in Maui , Hi  http://mauisdr.com:8074/
Hearing S in Colorado S5 and into the KFS SDR  Omni ant. also.

[DYGradio]

S Beacon 7999.92 KHz 19OCT2023 22:42z Airspy HF+ Discovery 60ft NE/SW longwire. Very nice signal, on my YouTube channel:

https://youtu.be/Q7Fx_c9y00Y?si=uzLTgZUPEVte6tOv

[SV1XV]

This is an explanation for the S beacons heard recently, posted on UDXF mailing list, in reply to my logs there:

It is Russian Navy Maritime Patrol Aircraft Morse net. The ground control sends S Markers for 5 minutes every 30 minutes to inform the aircraft radio operators that the net is available. Sometimes you will get S Markers on multiple frequencies such as 4651.0 kHz CW, 6752.0 kHz CW, 8821.0 kHz CW, 10021.0 kHz CW... Aircraft usually operate on 4671.0 kHz CW or 8830.0 kHz CW. Aircraft will send 4 figure radiograms and the ground control will receipt the radiograms. 

[DYGradio]

Interesting info, thanks for the frequency list! Helps sort out these nets from the actual HF beacons.

[DYGradio]

S just above the noise floor with fading. Airspy HF+ Discovery 60ft longwire NE/SW 7999.92 KHz 23OCT23 18:58z

[HQ180]

S  weak with some fade ups...time 1500 utc.

[mark-n-nut]

Hearing S here at 1650 utc weak with QSB.

73, Mark

[DYGradio]

S with a very nice signal into Central Arizona tonight. A solid S6 with very little QSB. 7999.87 KHz Airspy HF+ Discovery 60ft SE/NW longwire. 01NOV23 02:26z

[DYGradio]

S in there weak this mid day with some long fade outs then back in. 7999.92 KHz 06NOV23 19:06z Airspy HF+ Discovery 60ft SE/NW longwire

[HQ180]

Nov. 13 time 1720 utc Q5 copy

[DYGradio]

Had not seen S the past several days but it just popped up around 17:00z with a very nice strong signal, moderate fading. 7999.92 KHz 22NOV23 17:05z Airspy HF+ Discovery 60ft SE/NW longwire

[HQ180]

Got S this morning in Colorado on Turkey Day  1700 utc.
 

[DYGradio]

Got S this morning in Colorado on Turkey Day  1700 utc.

Good signal on it here in AZ this morning too Bill. 7999.92 KHz 23NOV23 17:45z Airspy HF+ Discovery 60ft SE/NW longwire

Happy Thanksgiving beaconeers!

[DYGradio]

S making it into AZ this morning with a very nice signal. Some fading but quite strong on the upswing. 7999.92 KHz 30NOV23 14:54z Airspy HF+ Discovery 60ft SE/NW longwire