GM0DYU I have an original OpenSPOT1, I'm aware it does not respond to Unlink command from the associated radio, can someone advise which model of OpenSPOT will respond to the Unlink command so I can upgrade. Thanks,
HA2NON The openSPOT4 responds to the unlink command, see the bottom of this user manual page: https://manuals.sharkrf.com/openspot4/en/control-calls.html
Tyrbiter GM0DYU If you are looking for complete cross mode capability then you might consider the OS4 Pro which has the AMBE chip required to cross-mode particularly with DSTAR. The openSPOT4 does not have this capability.