The DV-MEGA is a family of add-on boards (shields) for Arduino Uno, Arduino MEGA and Raspberry Pi for several digital voice communication standards.
DV-MEGA is produced by Guus van Dooren PE1PLM, http://www.dvmega.auria.nl/
Currently supported are the following DV modes:
To communicate via such a hotspot, a transceiver capable of the used DV mode is necessary to operate, the hotspot provides only an access gateway to the selected infrastructure.
The DV-MEGA has only one time slot.
At the moment (april, 2016), the subscription on BM is dynamic and valid for 15 minutes.