The rear seat push-to-talk switch on the stick is unreliable. The tech team will sort it when we can, meanwhile check that 'Tx' is illuminated on the radio to confirm you are transmitting. It may be necessary to try pressing the button part way to get it to work.
The front seat PTT is working properly, so this is only an issue if there is a passenger rather than a pilot in the front seat.
Barry L
Alliance PTT unreliable
Moderators: Tony Brown, BarryL