One caveat, ….the LilyGo TTgo T-beam module for OGN transmission, (as shown in picture), will not power directly from the 12 volt buss in SSI gliders.A small power “buck-converter” circuit module will also be needed, to bring 12 volts down to about 5 volt to feed into the OGN module…(it has a USB port accepting 5 volts)