WTTW-TV – the primary PBS member station serving the Chicago market – has selected GatesAir to fulfill its FCC TV spectrum repack requirements. GatesAir will supply its Maxiva ULXTE high-efficiency, liquid-cooled UHF TV transmitter in preparation for WTTW's relocation from UHF channel 47 to 25.
Owned by Window to the World Communications, Inc., WTTW carries the PBS network on its main channel, with WTTW Prime, Create/World, and PBS Kids on its secondary channels. With its assignment to Phase-6 in the Midwest/Chicago region, WTTW is legally mandated to complete its relocation to UHF channel 25 by October 18, 2019. According to the FCC's transition timetable, stations affected by the TV spectrum repack are moving in phases to avoid causing interference with other stations in their market.
GatesAir provided a complete range of technical services to help facilitate the transition, including comprehensive transmitter site evaluation. The company later delivered a full-transition plan across replacement, installation, and commissioning of the new Channel 25 transmission system.
The ULXTE will replace a GatesAir Sigma transmitter that was installed about 15 years ago. Based on the company's green, high-efficiency PowerSmart Plus transmitter architecture with broadband amplification, the compact ULXTE utilizes the latest 50-Volt LDMOS amplifiers to reduce size, weight, and energy consumption while increasing power density. The ULXTE integrates GatesAir's new ATSC 3.0-ready XTE exciter, which increases processing power and incorporates its patented RTAC technology. Working harmoniously, these various systems greatly reduce total cost of ownership over the life of the transmitter.
WTTW will leverage other benefits from working with GatesAir on the path to ATSC 3.0, including a simpler migration due to matching power levels for ATSC 1.0 and ATSC 3.0 standards within the ULXTE system. GatesAir's ATSC 3.0 Guarantee program will also provide WTTW with a comprehensive program of product support and technical services across installation, commissioning, and ongoing operation of ATSC 3.0 systems.
The ULXTE installation is contingent upon the design of a new antenna that will be installed as part of a multi-station antenna from atop the Willis Tower, which is managed by Vertical Bridge, the owner of the Chicago high-rise.
GMIT GmbH, a subsidiary of Rohde & Schwarz, has acquired the technology of Motama GmbH. The acquisition will expand the Berlin-based company's product portfolio for interruption-free transmission of audio and video content in IP networks. The acquisition will enhance Rohde & Schwarz subsidiary GMIT GmbH in the growth market of live online content distribution. Motama is a pioneer in the field of professional transmission via unmanaged IP networks. The Saarbruecken-based company's RelayCaster protocol is a solution that minimizes packet losses to enable the quality-of-service (QoS) conditions required for interruption-free transmissions.
The acquisition will provide Motama customers with the financial security of a well-established technology group – an important basis for long-term partnerships with an additional focus on investment security. It is very important to Rohde & Schwarz and Motama that existing customers and partners be fully supported by GMIT GmbH.
RelayCaster and other Motama products are now available from GMIT GmbH as independent product solutions. Motama technology will be integrated into the Rohde & Schwarz broadcast and media portfolio and can be used for new software solutions and cloud environments. Motama GmbH products and technology will remain available through existing sales partners and also be integrated into the Rohde & Schwarz product portfolio.