Hi,
I had been wondering if anyone has flashed the firmware on a Yaesu FT847? The original firmware allows for Doppler shifting as we all know and obviously inhibits full duplex on same band which is understandable. What CAT commands can also do is switch on SPLIT. However, SPLIT does not allow you to write to the SUB-VFO in SPLIT mode.
Does anyone has experience of flashing the original firmware for the FT847? I wonder is a modified Firmware could send CAT commands (if the CPU allows it) to the SUB-VFO in SPLIT mode?
If anyone has any thoughts on this I would be grateful to hear. I honestly can’t see hardware constraints and the commands may be implemented but hidden as they may not be needed.
I can’t see any reason to swap SUB-VFO for the main VFO set the frequency and swap it back again if it’s constrained. Every button must go via the processor and thus must be selectable from the CPU command set as a register. Simply having the code available to set a button in the firmware should unlock access to a command set for every button (totally overkill but workable).
Again thoughts appreciated,
Kind regards,
De Spence M0STO
Sent while portable! please excuse typos.
Spence G5STO