Narrowbanding FAQs: Week of Feb. 15
Monday, February 15, 2010 | Comments
Editor’s Note: FCC officials agreed to answer technical questions submitted by MissionCritical Communications readers. Following are questions from readers and answers from FCC technical and policy experts.
If you have a technical question regarding VHF or UHF narrowbanding, e-mail, and we will request an answer from the FCC and run the information as soon as possible. You can also contact the FCC directly via Robert Kenny, FCC spokesman, 202-418-2668,
The FCC clarified the following previous answer:
Question: I’m the coordinator for my hospital (WNJH888). We have 163.250 MHz as our in-house pager system. Is 163.250 going narrowband?
Answer: In a previous correspondence, we provided incorrect information regarding the rules for narrowbanding certain paging-only channels. While in general, the paging-only channels are not subject to narrowbanding requirements and may remain at 25 kilohertz, a few paging-only channels fall on spectrum allocated for federal primary use. Subject to rule changes adopted by the National Telecommunications and Information Administration (NTIA) and implemented by the FCC in Docket No. ET 04-243 (report and order available at: and erratum at:, paging-only channels that are on federal primary spectrum must reduce bandwidth to 12.5-kilohertz channels (See 47 CFR 90.265(e)). The channels subject to this requirement are 163.250 MHz, 150.775 MHz and 150.790 MHz. On these frequencies, all new stations must operate on 12.5-kilohertz channels, and all existing systems must reduce bandwidth to 12.5-kilohertz channels by Jan. 1, 2013. 

 Click here to read "Narrowbanding: Helpful Tips from Spokane."
 Click here to read "Narrowbanding FAQs: The FCC Responds to Readers' Questions."
 Click here to read "More Narrowbanding FAQs."
Your comments are welcome, click here.

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