I'm not sure this is where I saw the discussion regarding license requirements for cellular repeaters, but some had stated that no FCC license was required. From today's FCC Daily Digest, it appears they disagree.
DIGITAL ANTENNA, INC.
Notified Digital Antenna, Inc. of its Apparent Liability for Forfeiture in the amount of $11,000 for failure to provide information and documents in response to the Enforcement Bureau's directive. by NALF. Action by: Chief, Spectrum Enforcement Division, Enforcement Bureau.
Adopted: 05/08/2008 by ORDER. (DA No. 08-1093). EB, EB
The fine is for not responding fully to the FCC inquiry, but the letter does indicate they are to be operated under a cellular or PCS license. The manufacturer had argued that these units were not transmitters. The FCC said "The second LOI stated that, contrary to Digital Antenna?s assertions, cellular and PCS boosters and repeaters are transmitters and may only be used by licensed cellular/PCS providers or by end user customers with the express authorization of the licensed provider."
Harold