The HAM nerds are gonna write you a strongly worded retort!We use Rugged Radios for desert racing.
Rugged Radios • UTV & Off Road Communication Equipment and Accessories
Rugged Radios offers communications for any environment including offroad, UTV, Jeep, Bronco, Tundra, Tacoma, Raptor, F-Series, racing, motorcycle, dirt bike, industrial, fire, and aviation. Products include business band and GMRS two way radios, intercoms, air pumpers, GPS, helmet and headset...www.ruggedradios.com
For the same radio at a better price we also use Baufeng radios. Ruggeds are just rebranded Baofengs with some additional programming.
Baofeng -> The Official Baofeng Store | Get the Latest Baofeng News
Baofeng official website provides you with the most cost-effective long-range Baofeng two-way radios and meets all your amateur and commercial need. With OEM, ODM ability, quotation for bulk order is available. Contact us directly for a best price!www.baofengradio.com
Look for the 8 watt models. For a mobile unit they offer up to 100 watts. Totally illegal, but who cares.
These are fully programmable using CHIRP open source software. They also make repeaters. You can have your own code guards etc to keep your discussions discrete.