TL;DR: If I blast out a periodic SOS, what rescue action should I expect? Similar to if I activated an EPIRB, or something less?
This question is inspired by If I receive an SOS signal, what is the proper response? Also by the fact that I recently read about the survival story of Jose Alvarenga, whose fishing boat was taken out to ocean by a storm - Alvarenga had a radio and used it to call for help, but the search team called off the search in the storm and the radio battery did not last until after the storm, but I wonder if he could have gotten more out of the battery sending periodic SOS instead of voice so they could keep tracking him.
I am new to all this and am not licensed yet. My daughter knows even less about this, but she is interested, especially in Morse code. We have practiced it a little bit, and she quickly remembered the pattern for SOS.
If someone has the ability to broadcast an SOS and does so, but nothing else (for whatever reason, whether lack of knowledge or otherwise), what would be the reaction by the amateur radio community and/or the government and their rescue services?
I would like to think that it would be like in the movies, that someone would get a fix on my position and that search and rescue would start a search in that area. I am picturing in my head a few hams getting bearings on the SOS while one of them is contacting emergency services, who would likely have even better capability for triangulating. Basically, I'm envisioning that it would be treated similar to an EPIRB and that every reasonable effort would be made to mount a rescue.
But if all you do is blast out a periodic SOS in an appropriate range then what would the expected response be in reality?
For some context: I like to do a lot of outdoor activities, mostly hiking. I have been studying boating/sailing material and hope to be out on the water too within the next year or two. Of course I don't plan on anything bad happening, but I like to be prepared. I will probably get a PLB at some point (already should because of the hiking, but I haven't), but I'm still interested to know what response the SOS would get.