White Space: NCTA Warns of Interference to Cable TV Viewing

In an FCC filing, the National Cable and Telecommunications Association raises concern about adoption of final rules for white space devices (WSDs), now scheduled for Election day, Nov. 4.

"The facts of the report lead to the conclusion that significant interference was measured at outputs 20 times lower than what is reportedly being considered for adoption," NCTA wrote. "If the FCC does intend to rely on this Report it should first explain how it would propose to reach a conclusion so at odds with the observed interference through a Notice seeking comment on the Report."

NCTA questions the way the FCC is handling the WSD proceeding:

"Finally, we are troubled that the Commission is prepared to adopt a final rule without formally seeking public comment on a major technical study," NCTA wrote. "This would be a departure from established practice in this and other proceedings. OET sought public comment on two of its initial measurement studies of prototype personal/portable white space devices. It similarly sought public comment on its study of third generation wireless systems before adopting final rules. And there are many other proceedings where this has routinely been the case. Yet, here, a highly complex proceeding with hundreds of filings involving diverse communications services, culminating in a long-awaited field study, will be resolved barely two weeks after the report's release to the public."

The Ex Parte filing dated Oct. 27 has information on the test results and calculations supporting these concerns.

Doug Lung

Doug Lung is one of America's foremost authorities on broadcast RF technology. As vice president of Broadcast Technology for NBCUniversal Local, H. Douglas Lung leads NBC and Telemundo-owned stations’ RF and transmission affairs, including microwave, radars, satellite uplinks, and FCC technical filings. Beginning his career in 1976 at KSCI in Los Angeles, Lung has nearly 50 years of experience in broadcast television engineering. Beginning in 1985, he led the engineering department for what was to become the Telemundo network and station group, assisting in the design, construction and installation of the company’s broadcast and cable facilities. Other projects include work on the launch of Hawaii’s first UHF TV station, the rollout and testing of the ATSC mobile-handheld standard, and software development related to the incentive auction TV spectrum repack.
A longtime columnist for TV Technology, Doug is also a regular contributor to IEEE Broadcast Technology. He is the recipient of the 2023 NAB Television Engineering Award. He also received a Tech Leadership Award from TV Tech publisher Future plc in 2021 and is a member of the IEEE Broadcast Technology Society and the Society of Broadcast Engineers.