FCC Record, Volume 27, No. 11, Pages 8850 to 9847, July 30 - August 17, 2012 Page: 8,895
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14. Section 22.5650( Mobile Radio Power Limit. Maine has designed its system for 110 watt
mobile units to ensure adequate "talk-back" ability. We agree with Maine that it would be unduly
burdensome to limit mobile units operating on Part 22 paging frequencies to 60 watts while the rest of its
mobile fleet operates at 110 watts as permitted under the higher Part 90 power limits. Applying the rule
in this manner would be spectrally inefficient, would force Maine to redesign its network, and would
likely require construction of additional base stations at substantial cost.3s
15. However, to reduce the potential for interference to Part 22 licensees in adjacent regions, we
limit the area in which Maine may operate mobile units at 110 watts on Part 22 frequencies. Specifically,
we require Maine to operate its mobile units at least 8 kilometers from the edge of its Part 22 service area
when transmitting at power levels above 60 watts on Part 22 paging frequencies.36 This restriction
remains in effect unless Maine obtains the consent of the Part 22 licensee in the adjacent regions. By
restricting the distance at which Maine's overpowered mobile units can operate from the border of its
service area, we limit the interference potential of these units to that of a 60-watt mobile unit operating at
the edge of the Part 22 service area. 37
16. With this condition, we find Maine has satisfied the standard for waiver of the 60-watt limit
for mobile units specified in Section 22.565(f) of our rules.
17. Section 22.3 77 Certifications of Transmitters. Having waived Maine's requirement to
operate as a common carrier and having waived the 60 watt power limit for mobile units, we agree with
Maine that it would be unduly burdensome to require it to operate its Part 22 frequencies only on
equipment certified under Part 22. Maine intends to operate its entire statewide system on equipment
approved under Part 90.38 Therefore, in this instance, we find it unnecessarily burdensome to require
Maine to also get its equipment certified for operation under Part 22. Consequently, we find Maine has
satisfied its request for waiver of the equipment certification requirement of Section 22.377.
IV. ORDERING CLAUSES
18. Accordingly, we GRANT the waiver requests associated with the applications listed in
Tables 1, 2, and 4 of the attached appendix filed by State of Maine - MSCommNet Project, pursuant to
Section 1.925 of the Commission's rules, 47 C.F.R. 1.925, and we will PROCESS the associated
19. Furthermore, we GRANT the waiver requests associated with the application listed in Table 3
of the attached appendix filed by Harris Corporation, pursuant to Section 1.925 of the Commission's rules,
47 C.F.R. 1.925, with the condition that mobile units must maintain at least an eight kilometer
separation from the edge of the service area when operating at power levels above 60 watts transmitter
output power unless concurrence is obtained from the adjacent Part 22 licensee, and we will PROCESS
this application accordingly.
35 Id. at 2.
36 We calculate that a mobile unit operating at 110 watts extends the Part 22 interference contour approximately
eight kilometers beyond the interference contour produced by a mobile unit operating at 60 watts. We assumed the
minimum radial antenna height above average terrain of 30 meters for this calculation. See 47 C.F.R. 22.567.
37 The Part 22 service area is specified on each Part 22 license associated with assignment application no.
3 Part 22 Waiver Request at 2.
Federal Communications Commission
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United States. Federal Communications Commission. FCC Record, Volume 27, No. 11, Pages 8850 to 9847, July 30 - August 17, 2012, book, August 2012; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc133015/m1/62/: accessed February 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.