[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: 47CFR24.135]



[Page 236]

 

                       TITLE 47--TELECOMMUNICATION

 

                    CHAPTER I--FEDERAL COMMUNICATIONS

                         COMMISSION (CONTINUED)

 

PART 24_PERSONAL COMMUNICATIONS SERVICES--Table of Contents

 

                        Subpart D_Narrowband PCS

 

Sec. 24.135  Frequency stability.



    (a) The frequency stability of the transmitter shall be maintained 

within  0.0001 percent ( 1 

ppm) of the center frequency over a temperature variation of -30[deg] 

Celsius to +50[deg] Celsius at normal supply voltage, and over a 

variation in the primary supply voltage of 85 percent to 115 percent of 

the rated supply voltage at a temperature of 20[deg] Celsius.

    (b) For battery operated equipment, the equipment tests shall be 

performed using a new battery without any further requirement to vary 

supply voltage.

    (c) It is acceptable for a transmitter to meet this frequency 

stability requirement over a narrower temperature range provided the 

transmitter ceases to function before it exceeds these frequency 

stability limits.



[[Page 237]]