GMDSS Explanation Video (from 1992), with a few errors, but still okay.

An OLD GMDSS explanation video (from 1992). Please ignore the errors from19m 23s to 19m 36s, showing MF/HF and VHF radios that do NOT have DSC capabilities and note the old external DSC controller shown from 20m 17s to 20m 24s.
Also ignore the references to the defunct INMARSAT-E beacons.
Further take note of the old "2182khz Watch Receiver", which haven't been used in almost 20 years (at 20m 54s), shown listening to static (which they didn't do, as they were typically squelched and listening for a two-tone alarm generator alert (NOBODY monitors 2182khz anymore!)
Even with the above errors and 20+ year old technology shown, it does give a good overview to how the GMDSS was conceived and how it works!
And, please have a look at the HF-DSC Playlist here...
• HF-DSC Communications
As well as the other Maritime communications playlists here..
/ captainjohn49

[@percydpercyd]

Thank you for this video. Very good and practical basic information about GMDSS.

[@captainjohn49]

You're welcome! And, please be sure to watch the entire HF-DSC / GMDSS Playlist here... ruclips.net/user/captainjohn49playlists I think this new, and more "yacht-centric", info will be of help. Fair winds. John, KA4WJA s/v Annie Laurie, WDB6927

[@kayang-kayavlogs496]

Thankyou so much

[@captainjohn49]

You are very welcome! BUT....
But, PLEASE have a look at the whole HF-DSC Playlist here.
ruclips.net/p/PLnN6ygtZ3h2n3z5nlv-ga2zYuPozhUXZX
Because the playlist videos contain much better / up-to-date information!
(this video above is 30 years old....and, there is much more up-to-date info in the other videos in my playlists
ruclips.net/p/PLnN6ygtZ3h2n3z5nlv-ga2zYuPozhUXZX )
Also, have a look at the other Maritime Communications, Offshore Weather, and Offshore Sailing videos, in all the playlists here.
ruclips.net/user/captainjohn49playlists
Fair winds.
John

[@mauriciodasilvabarrosbarro3897]

Gostaria dessa material escrito em PDF..

[@eldarebojo3467]

Hello, my mf/hf dsc incounter tuning error and exciter error. Can you please provide me some tips video to rectify my problem. Tnx

[@ashwinbn7]

Hello, do you have an updated video about GMDSS?
By the way, thanks for this video.

[@captainjohn49]

Yes, I do have much more in the playlist...Please have a look at videos describing HF-DSC, etc. here: ruclips.net/p/PLnN6ygtZ3h2n3z5nlv-ga2zYuPozhUXZX I hope this helps...