WQPT Goes On-Air With A Comark 27.5kW PARALLAX UHF DTV Transmitter

WQPT-TV is a PBS member television station serving the Quad Cities area of northwestern Illinois and southeastern Iowa.

WQPT’s HPTV-PRLX-U16 27.5kW transmitter consists of a single rack cabinet equipped with 16 UHF Asymmetric Broadband Doherty final amplifiers that provide the highest power density in the industry.

The PARALLAX transmitter was delivered complete with dual EXACT-V2 ATSC exciters (in main / standby configuration) and the liquid cooling system. COMARK also supplied the new RF mask filter system and interconnected coax feed into the facility’s existing RF channel combiner.

The shipment, offloading, and placement of the new equipment into the existing broadcast facility was managed by COMARK. After the mechanical installation of the new transmitter system was completed, COMARK’s field engineer turned on the new transmitter, performing the complete proof-of-performance testing towards the end of March 2021.

“The team at COMARK provided a complete solution to replace WQPT’s older UHF transmitter system as part of the station’s plan to increase their ERP”, states Joe Turbolski, VP of Sales and Marketing for COMARK. “The new transmitter installation went as planned, having the new equipment installed in about a week. We’re pleased to work with WQPT to provide one of our PARALLAX transmitter systems that ensures better signal coverage to their viewers.”

You might also like...

Chris Brown Discusses The Themes Of The 2024 NAB Show

The Broadcast Bridge sat down with Chris Brown, executive vice president and managing director, NAB Global Connections and Events to discuss this year’s gathering April 13-17 (show floor open April 14-17) and how the industry looks to the show e…

Standards: Part 4 - Standards For Media Container Files

This article describes the various codecs in common use and their symbiotic relationship to the media container files which are essential when it comes to packaging the resulting content for storage or delivery.

Standards: Appendix E - File Extensions Vs. Container Formats

This list of file container formats and their extensions is not exhaustive but it does describe the important ones whose standards are in everyday use in a broadcasting environment.

Standards: Part 3 - Standards For Video Coding

This article gives an overview of the various codec specifications currently in use. ISO and non-ISO standards will be covered alongside SMPTE 2110 elements to contextualize all the different video coding standard alternatives and their comparative efficiency - all of which…

Standards: Part 2 - Standards For Broadcasting & Deployment

This article gives an overview of the standards relating to production and transmission or playout. It prepares the ground for subsequent more detailed articles which will explore the following subject areas: ST 2110, higher bit rate codecs and profiles that are…