I made a tab for NMO mount for the RZR. The mount is welded to a tube on the rear. I go over the process of tuning the antenna for both the UHF and VHF bands.
Items used in this video TYT Radio - http://amzn.to/2DUajzn TRAM Antenna - http://amzn.to/2Bfobkx
This is a video of a Ebay purchase of a non-working Motorola R2210B HS Radio Service Monitor. In Part 1, I disassemble the unit and access the LVPS (Low Voltage Power Supply) and begin repairs to see if this unit is repairable.