Sec. 25.204  Power limits.

    (a) In bands shared coequally with terrestrial radio communication 
services, the equivalent isotropically radiated power transmitted in any 
direction towards the horizon by an earth station operating in frequency 
bands between 1 and 15 GHz, shall not exceed the following limits except 
as provided for in paragraph (c) of this section:

+40 dBW in any 4 KHz band for :0 deg.
+40+3 05 deg.


where <5 deg.


where 13.75-14.0 GHz shall be at least 68 dBW and shall not 
exceed 85 dBW, with a minimum antenna diameter of 4.5 meters; except in 
the frequency band 13.772-13.778 GHz, where the e.i.r.p. shall be at 
least 68 dBW and shall not exceed 71 dBW per 6 MHz, with a minimum 
antenna diameter of 4.5 meters. Automatic power control may be used to 
increase the e.i.r.p. density above 71 dBW per 6 MHz to compensate for 
rain attenuation to the extent that the power flux density at the fixed-
satellite space station does not exceed the value resulting from use of 
71 dBW per 6 MHz e.i.r.p. in clear sky conditions.
[ 48 FR 40255 , Sept. 6, 1983, as amended at  58 FR 13420 , Mar. 11, 1993; 
 61 FR 52307 , Oct. 7, 1996]