DTV V's Seeking UHF Slots

As you may have noticed, I discontinued the biweekly "DTV Station Status" section of RF Report. I'm still creating the TV engineering database spreadsheets and uploading them to www.xmtr.com/fcc although on a less regular basis.

In reviewing the spreadsheet from the July 22, 2009 FCC database. I discovered some interesting items.

First, most of the full power analog TV entries have been removed from the database. The remaining entries appear to be limited to analog night light stations.

Second, five more stations have applied for channel changes during the month of July.

Notably, Boston's WHDH-TV has filed an application to change its DTV operations to Ch. 42 from Ch. 7. WEDY in New Haven filed to move from Ch. 6 to Ch. 41. And WLOX in Biloxi wants to jump from Ch. 13 to Ch. 39.

In the Dallas-Fort Worth market, CBS-owned KTVT has had major problems with its DTV operations on Ch. 11. In an STA filing, the station noted that since commencement of DTV operations on Ch. 11 in June, it had received "several thousand" phone calls and e-mail messages from would-be viewers who were having trouble in capturing the station's DTV broadcasts. The filing said that the majority of reception problems were being experienced by viewers using rabbit ear antennas or other indoor antennas, and also by those living more than 15 miles from the station's transmitter site.

"In addition to the thousands of complaints the station has received, the difficulties that Dallas-Fort Worth area residents are having in receiving KTVT's signal is dramatically shown by a precipitous decline in the station's ratings among over-the-air viewers in the period immediately following the DTV transition," the filing continued. "A comparison of the station's prime time Nielsen ratings (P25-54) during the weeks of June 1, 2009 and June 22, 2009 shows that there was a massive decline in the station's over-the-air audience, while ratings among cable viewers remained stable."

According to the numbers, KTVT's 7 p.m. to 10 p.m. off-air audience ratings fell by 57 percent. It noted that cable ratings dropped by only 2 percent.

The station is proposing moving to its post-transition Ch. 19 slot, which was assigned to its sister station, KTXA. and that KTXA eventually move to channel 29. KTXA would then move to Ch. 18 on a temporary basis.

For a complete listing of all current full power, low power, translator, distributed transmission system TV stations in the FCC's TV Engineering Database, download the file tvdb.zip from www.xmtr.com/fcc

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.