If you find yourself in an area that has no cell phone service and need to spot yourself for a POTA (Parks on the Air) activation, here’s how you can get yourself spotted via Winlink. Obviously, you need a Winlink gateway to get to, so Vara HF will probably work the best in this situation.
Before heading out, go to https://sotamat.com/ where you will need to create an account and watch the tutorials.
Compose a message in your Winlink Express client.
TO: potagw@outlook.com
SUBJECT: SPOT {your callsign} {park designator} {mode} {frequency} {any comments}
Example: SPOT KM6ZPO K-TEST SSB 14321 …