DTV Transmitters For over 45 years Hitachi-Comark has been a trusted partner to TV broadcasters. We offer broadcasters: More Options. More Solutions. More Services. UHF High Power Liquid Cooled Solid StateUHF High Power Air Cooled Solid StateUHF Medium Power Air Cooled Solid StateUHF Low Power Air Cooled Solid StateVHF Med. & High Power B3 Liquid Cooled Solid StateVHF Low Power B3 Air Cooled Solid StateVHF Med. & High Power B1 Liquid Cooled Solid StateVHF Low Power B1 Air Cooled Solid StateDTV Exciters Hitachi-Comark is an industry leading manufacturer and supplier of DTV Transmitters, encoding systems, and associated field services. We offer equipment for ATSC / DVB / ISDB-T High Power Liquid Cooled Doherty Solid State Transmitters Medium Power Air Cooled Doherty Solid State Transmitters Low Power TV (LPTV) Systems Covering UHF, VHF Band 3, and VHF Band 1 MPEG Encoding & Transport Stream Management ATSC 3.0 System Upgrades DTV Exciter Retrofits Contact Hitachi-Comark at firstname.lastname@example.org for assistance with your station’s needs, including transmitter upgrades, RF channel changes, or replacement of existing DTV transmitters!