A total of 4 megahertz of spectrum, designated as Guard Bands, are allocated in the upper 700 MHz Band to protect public safety operations from harmful interference while promoting the efficient use of this spectrum.
The Guard Bands licenses were auctioned geographically in 52 Major Economic Areas (MEAs). Two licenses were issued for each MEA; the paired A Block consists of 2 megahertz total and the paired B Block also consists of 2 megahertz total.
Performance requirements are governed by 47 CFR 27.607
which refers to
47 CFR 27.14 (a)
The Second Report and Order (FCC 00-90 (pdf
)) defines substantial service requirements.
700 MHz Guard Bands licensees must file a Required Notification application, within their initial license term, demonstrating they are providing substantial service within their license area. A Guard Bands licensee may satisfy the substantial service requirement by leasing the predominant amount of its licensed spectrum in at least 50 percent of the geographic area covered by its license or by providing coverage to 50 percent of the population of its service area at the license-renewal mark.