Good spreadsheet. Might be helpful to add the "Power" column from Chirp to stay within the power rating for the GMRS channels. I think both the UV82 and UV5R have dual power ratings.So after lots of discussion, a little testing with @GLTHFJ60 and @JohnVee , and a lot of help from @emorth I think we have a plan.
Simple version is ONSC will move from recommending you have a CB to GMRS just like a lot of other clubs and organizations starting at Relic Run 2022. Many of us will have ham radio to supplement/back up the GMRS but communication within the groups will be GMRS.
If you have an older FRS/GMRS handheld that should work fine. If you want to pick up a new radio Midland seems to have some really good options and be ready to go. Motorola and Baofeng/other Chinese radios (new GMRS models) should work too but may need codes turned off or something simple to hear each other.
Short version any GMRS radio should be good including/especially the new higher power mobile options. We're looking forward to testing range on those.
Older Baofeng radios can transmit on GMRS frequencies. There's an FCC type rule your breaking but it happens all the time.
I've attached a Chirp file if you have the programing cable and want to try it. If you have a Baofeng and no cable there will be a few of us with laptops at Relic Run that can fix you up.
CCLC Motorola radios have the GMRS channels programed in with a code/tone on by default. The chirp file includes those as CLCC 1, CLCC 2, etc. A Midland can talk to those just fine by turning on the code/tone in the chart from post #95. If I understand correctly the Motorolas can also turn off the code/tone with a button on the side and talk to all radios with no tone set.
Relic Run will be the first event trying GMRS and seeing how all the radios work together and what range we get so we'll look forward to seeing how it all goes.