[ GLOSSARY DEFINITION ] Connectivity C-band The 3.7-4.2 GHz spectrum used for mid-band 5G. Full Definition & Technical Explanation C-band — The 3.7-4.2 GHz spectrum used for mid-band 5G.This connectivity term is part of the CompareTech technical dictionary and helps you read specifications, comparisons, and benchmark data across its device database.See also: CDMA EV-DO. Related Technical Terms CDMA Code Division Multiple Access — a legacy 2G/3G standard. Connectivity EV-DO An evolution of CDMA 2000 1x for data. Connectivity ← All Glossary Terms How We Score → ← Previous Term Next Term →