Have to fully test but so far so good with no loss of shift using SPLIT option and not Plus or Minus by disabling ARS on 2 & 70…
This is how I’ve done it,
In RT System Software go to SETTINGS, PREFERENCES… MEMORY DEFAULTS TAB and un-tick the CONVERT SPLIT OFFSETS…. box to disable that feature, then click APPLY / OK.
Now go to SETTINGS, RADIO MENU SETTINGS, OPERATING MODE TAB and un-tick ARS 144MHz and ARS 430MHz checkboxes. Click FILE, SAVE then close this screen.
To send memory channels to 991 click COMMUNICATIONS, SEND DATA TO RADIO, tick to enable MEMORY CHANNELS & MENUS under Data To Transfer.
Once uploaded, restart 991 and select MENU, scroll to option 84 & 85 and change ARS to OFF on both 144MHz and 430MHz.
If a firmware update enables the sweep function go to menu option 116 – SCP START CYCLE and turn OFF.
Hopefully, this should work now and put repeater shift loss to bed once and for all or until the next update.
Thanks again for all those that had an input.