I finally managed to find a cable to connect the Kenwood TMV-71 to Echolink. For a normal price, I mean. It will take a week or so to arrive. Configuring the link is easy, all the equipment is there, but I still have to select a usable frequency, probably on 2 meters.
The link won’t be on 24/7. Local regulations require me to be physically present at the station (*), unless I’m willing to pay a hefty fee for a special permit. Let’s experiment a bit first, I can always decide to change it into a more permanent link.
(*) Update: that strict rule has been changed. If I can control the system through the Internet, it should be fine.