Yaesu FT991A - MARS MOD YAESU FT-991 or 991A, MARS MOD. I have widebanded my Yaesu FT991A to work on 11m Please note I do not recommend you do this to your radio as it may damage it or invalidate your warranty. Brilliant Radio this FT-991a........
The main differences shown in the video are the waterfall display on the new model, along with the fact that the audio is not muted when sweeping through a band. It is also mentioned that the touch-sensitive display is more responsive to touches, instead of the previous model where you had to press harder for a touch to register.
Extending the transmit range on a European FT991
This video is for information only, anyone acting upon it does so at their own risk.
It is strongly recommended that memory and so on is backed up, as a master reset is required.
This allows transmission on 144-148 and 430-450 without having to go into the service menu.
*** Warning MASTER RESET happens in this process ***
A basic method of transmitting in the frequency range 1.8-55.999 Mhz,
137-163.999Mhz, 420-469.999Mhz, with a European version FT991. All the
info on this video is for information only, acting on the info is
entirely the responsibility of the individual.