[Code of Federal Regulations] [Title 47, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR24.132] [Page 235-236] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) PART 24_PERSONAL COMMUNICATIONS SERVICES--Table of Contents Subpart D_Narrowband PCS Sec. 24.132 Power and antenna height limits. (a) Stations transmitting in the 901-902 MHz band are limited to 7 watts e.r.p. (b) Mobile stations transmitting in the 930-931 MHz and 940-941 MHz bands are limited to 7 watts e.r.p. (c) Base stations transmitting in the 930-931 MHz and 940-941 MHz bands are limited to 3500 watts e.r.p. per authorized channel and are unlimited in antenna height except as provided in paragraph (d) of this section. (d)(1) MTA and regional base stations located between 200 kilometers (124 miles) and 80 kilometers (50 miles) from their licensed service area border are limited to the power levels in the following table: ------------------------------------------------------------------------ Antenna HAAT in meters (feet) (see Sec. 24.53 for HAAT HAAT calculation Effective radiated power method) (e.r.p.) (watts) ------------------------------------------------------------------------ 183 (600) and below.................... 3500 183 (600) to 208 (682)................. 3500 to 2584 208 (682) to 236 (775)................. 2584 to 1883 236 (775) to 268 (880)................. 1883 to 1372 268 (880) to 305 (1000)................ 1372 to 1000 305 (1000) to 346 (1137)............... 1000 to 729 346 (1137) to 394 (1292)............... 729 to 531 394 (1292) to 447 (1468)............... 531 to 387 447 (1468) to 508 (1668)............... 387 to 282 508 (1668) to 578 (1895)............... 282 to 206 578 (1895) to 656 (2154)............... 206 to 150 656 (2154) to 746 (2447)............... 150 to 109 746 (2447) to 848 (2781)............... 109 to 80 848 (2781) to 963 (3160)............... 80 to 58 963 (3160) to 1094 (3590).............. 58 to 42 1094 (3590) to 1244 (4080)............. 42 to 31 1244 (4080) to 1413 (4636)............. 31 to 22 Above 1413 (4636)...................... 16 ------------------------------------------------------------------------ (2) For heights between the values listed in the table, linear interpolation shall be used to determine maximum e.r.p. (e) MTA and regional base stations located less than 80 kilometers (50 miles) from the licensed service area border must limit their effective radiated power in accordance with the following formula: PW = 0.0175 x dkm* * 6.6666 x hm* * -3.1997 PW is effective radiated power in watts [[Page 236]] dkm is distance in kilometers hm is antenna HAAT in meters; see Sec. 24.53 for HAAT calculation method (f) All power levels specified in this section are expressed in terms of the maximum power, averaged over a 100 millisecond interval, when measured with instrumentation calibrated in terms of an rms- equivalent voltage with a resolution bandwidth equal to or greater than the authorized bandwidth. (g) Additionally, PCS stations will be subject to any power limits imposed by international agreements. [58 FR 59183, Nov. 8, 1993; 59 FR 15269, Mar. 31, 1994, as amended at 62 FR 27511, May 20, 1997; 65 FR 35853, June 6, 2000]