Goto Section: 15.317 | 15.321 | Table of Contents

FCC 15.319
Revised as of October 1, 2009
Goto Year:2008 | 2010
  §  15.319   General technical requirements.

   (a) [Reserved]

   (b) All transmissions must use only digital modulation techniques.

   (c) Peak transmit power shall not exceed 100 microwatts multiplied by
   the square root of the emission bandwidth in hertz. Peak transmit power
   must be measured over any interval of continuous transmission using
   instrumentation calibrated in terms of an rms-equivalent voltage. The
   measurement results shall be properly adjusted for any instrument
   limitations, such as detector response times, limited resolution
   bandwidth capability when compared to the emission bandwidth,
   sensitivity, etc., so as to obtain a true peak measurement for the
   emission in question over the full bandwidth of the channel.

   (d) Power spectral density shall not exceed 3 milliwatts in any 3 kHz
   bandwidth as measured with a spectrum analyzer having a resolution
   bandwidth of 3 kHz.

   (e) The peak transmit power shall be reduced by the amount in decibels
   that the maximum directional gain of the antenna exceeds 3 dBi.

   (f) The device shall automatically discontinue transmission in case of
   either absence of information to transmit or operational failure. The
   provisions in this section are not intended to preclude transmission of
   control and signaling information or use of repetitive codes used by
   certain digital technologies to complete frame or burst intervals.

   (g) Notwithstanding other technical requirements specified in this
   subpart, attenuation of emissions below the general emission limits in
   § 15.209 is not required.

   (h) Where there is a transition between limits, the tighter limit shall
   apply at the transition point.

   (i) Unlicensed PCS devices are subject to the radiofrequency radiation
   exposure requirements specified in § § 1.1307(b), 2.1091 and 2.1093 of
   this chapter, as appropriate. All equipment shall be considered to
   operate in a “general population/uncontrolled” environment.
   Applications for equipment authorization of devices operating under
   this section must contain a statement confirming compliance with these
   requirements for both fundamental emissions and unwanted emissions.
   Technical information showing the basis for this statement must be
   submitted to the Commission upon request.

   [ 58 FR 59180 , Nov. 8, 1993, as amended at  59 FR 32852 , June 24, 1994;
    59 FR 40835 , Aug. 10, 1994;  60 FR 13073 , Mar. 10, 1995;  61 FR 41018 ,
   Aug. 7, 1996;  69 FR 62621 , Oct. 27, 2004;  69 FR 77949 , Dec. 29, 2004]


Goto Section: 15.317 | 15.321

Goto Year: 2008 | 2010
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