Radios that were added are displayed with a hotlink to the documentation andor reason for the addition. For a list of currently fcc-recognized accredited testing laboratory see httpsapps. Amateur maritime (80) amateur radio (97) 1810-1850 amateur 5. 100 1850-2000 fixed mobile except aeronautical mobile 1850-2000 amateur. 97 ng92 2000-2025 fixed mobile except aeronautical mobile (r) 5. The amateur and amateur-satellite services are for qualified persons of any age who are interested in radio technique solely with a personal aim and without pecuniary interest. These services present an opportunity for self-training, intercommunication, and technical investigations. 4 ghz transmitters use the entire spectrum, so if they were not fcc approved, they would indeed be problematic. As for your assertion about unapproved radio gear, hams can build their own gear an operate on any of their approved bands.   these radios are not specifically fcc approved for use on those bands, and clearly violate the rules and limitations on a couple of them. The problem is, a lot of folks are using the uv-5r v2 and other unapproved models on these services in violation of the fcc rules, and its causing interference and other issues with those who are authorized to use those bands and services.