My FIRST EVER SITOR A Maritime Logs

 

12654.0 TAH Istanbul, SITOR A/ARQ MKCV (4360) Istanbul w/test reply to unid ship THE QUICK BROWN FOX etc (25JUN25 0557) (AJT)

12557.0 Hanjin Pioneer, SITOR A/ARQ mmsi 440021000 test req to MKCV Istanbul (25JUN25 0952) (AJT)

12557.0 Songa Sapphire, SITOR A/ARQ mmsi 248940000 test req to MKCV Istanbul (25JUN25m 1355) (AJT)

 

Here's a link to the Youtube video that inspired me to try this rather vintage mode.

 

Quite challenging to get these first SITOR decodes. Signal level into Multipsk needed to be around 40-50% (I was inputting much higher and also much lower levels). I sat my Tecsun portable on 12556.0 USB and just waited. Eventually, with luck and conditions behind me, big signal levels appeared which I recorded USING A LEAD into a small portable voice recorder. This allowed me to repeatedly input the signal into MultiPSK until I hit the sweet spot. It took several days to get there. Couldn't have done it without the help of fellow UDXF forum member Patrick. THANK YOU. Great news for me as this mode is much more challenging and hands-on than GMDSS which is a bit too easy for me.

Anyway, here was what the MultiPSK looked like with the noise/interference removed for anyone else who may want to give it a go:

 

4360 IST.RD
MQCVGA@-@-+?
TRY AGAIN OR USE 'OPR+'
*GA+? AGAIN OR USE 'OPR+' 
*GA+?
TRY AGAINAIN OR USE 'OPR+' 
*GA+?

THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG 0123456789

 

I'm hooked now! 73 Adam

 

Location: Dawlish, UK
50.5823N 3.4644W

Tecsun PL660 with telescopic whip and
Realistic DX400 with indoor homemade broadband active loop
Software: MultiPSK