[Code of Federal Regulations]

[Title 47, Volume 5]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 47CFR90.217]



[Page 350]

 

                       TITLE 47--TELECOMMUNICATION

 

                         COMMISSION (CONTINUED)

 

PART 90_PRIVATE LAND MOBILE RADIO SERVICES--Table of Contents

 

                  Subpart I_General Technical Standards

 

Sec. 90.217  Exemption from technical standards.



    Except as noted herein, transmitters used at stations licensed below 

800 MHz on any frequency listed in subparts B and C of this part or 

licensed on a business category channel above 800 MHz which have an 

output power not exceeding 120 milliwatts are exempt from the technical 

requirements set out in this subpart, but must instead comply with the 

following:

    (a) For equipment designed to operate with a 25 kHz channel 

bandwidth, the sum of the bandwidth occupied by the emitted signal plus 

the bandwidth required for frequency stability shall be adjusted so that 

any emission appearing on a frequency 40 kHz or more removed from the 

assigned frequency is attenuated at least 30 dB below the unmodulated 

carrier.

    (b) For equipment designed to operate with a 12.5 kHz channel 

bandwidth, the sum of the bandwidth occupied by the emitted signal plus 

the bandwidth required for frequency stability shall be adjusted so that 

any emission appearing on a frequency 25 kHz or more removed from the 

assigned frequency is attenuated at least 30 dB below the unmodulated 

carrier.

    (c) For equipment designed to operate with a 6.25 kHz channel 

bandwidth, the sum of the bandwidth occupied by the emitted signal plus 

the bandwidth required for frequency stability shall be adjusted so that 

any emission appearing on a frequency 12.5 kHz or more removed from the 

assigned frequency is attenuated at least 30 dB below the unmodulated 

carrier.

    (d) Transmitters may be operated in the continuous carrier transmit 

mode.

    (e) Transmitters used for wireless microphone operations and 

operating on frequencies allocated for Federal use must comply with the 

requirements of Sec. 90.265(b).



[60 FR 37267, July 19, 1995, as amended at 62 FR 2041, Jan. 15, 1997; 62 

FR 18927, Apr. 17, 1997; 70 FR 21661, Apr. 27, 2005]