Maryland Public Television (MPT) has upgraded its existing digital TV transmitters at WMPB in Baltimore (D29) and WMPT in Annapolis (D42) with new EXACT‐ATSC Digital TV exciters from Comark, according to Hitachi Kokusai Electric Comark LLC.
WMPB uses an Ultimate solid state transmitter installed in 2001, and WMPT uses a DCX IOT transmitter installed in 1998.
Both stations replaced the existing main and standby exciters. EXACT‐ATSC exciters were developed as drop‐in replacements for existing Comark transmitters. They are also available as standalones to be used with transmitters manufactured by other companies, it said.
The EXACT‐ATSC exciter, a 1RU rack-mount platform, offers DualCast technology that makes it possible to upgrade from ATSC 1.0 to 3.0 with a firmware update.
To learn more, visit the company’s website.