? ? ? ? ? ?
?V ?A ?V
? ? ? ? ?
= ? V = ? A = ? V = ? V
To use DTMF commands you must have CTCSS turned on and set to 82.5Hz
Commands are sent on 144.750MHz and FT will respond with a CW confirmation, typically SK, OK or done.
All commands start with 123 followed by two digits as follows
81 Select 23cm Digital input
82 Deselect 23cm Digital input
83 Select mast cam
84 Deselect mast cam
85 Select FM ATV rx input
86 Deselect FM ATV input
Any audio received on 144.750MHz with CTCSS is also mixed into the 23cm audio channel.
This means it is possible to break into a 23cm video QSO using normal analogue speech