Code of Federal Regulations (Last Updated: April 5, 2024) |
Title 47 - Telecommunication |
Chapter I - Federal Communications Commission |
SubChapter D - Safety and Special Radio Services |
Part 90 - Private Land Mobile Radio Services |
Subpart S - Regulations Governing Licensing and Use of Frequencies in the 806-824, 851-869, 896-901, and 935-940 MHz Bands |
Policies Governing the Licensing and Use of EA-Based SMR Systems in the 809-824/851-869 Mhz Band |
§ 90.689 - Field strength limits.
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§ 90.689 Field strength limits.
(a) For purposes of implementing §§ 90.689 through 90.699, predicted 36 and 40 dBµV/m contours shall be calculated using Figure 10 of § 73.699 of this chapter with a correction factor of −9 dB, and predicted 18 and 22 dBµV/m contours shall be calculated using Figure 10a of § 73.699 of this chapter with a correction factor of −9 dB.
(b) The predicted or measured field strength at any location on the border of the EA-based service area for EA licensees must not exceed 40 dBuV/m unless all bordering EA licensees agree to a higher field strength. In the event that this standard conflicts with the EA licensee's obligation to provide co-channel protection to incumbent licensees pursuant to § 90.621(b), the requirements of § 90.621(b) shall prevail.
[61 FR 6158, 6159, Feb. 16, 1996, as amended at 62 FR 41216, July 31, 1997]