47 CFR 90.351 - Location and Monitoring Service.
These provisions authorize the licensing of systems in the Location and Monitoring Service (LMS). LMS systems utilize non-voice radio techniques to determine the location and status of mobile radio units. LMS licensees authorized to operate a system in the 902-928 MHz band may serve individuals, federal government agencies, and entities eligible for licensing in this part 90.
(1) A detailed description of the manner in which the system will operate, including a map or diagram.
(2) The necessary or occupied bandwidth of emission, whichever is greater.
(3) The data transmission characteristics as follows:
(i) The vehicle location update rates;
(ii) Specific transmitter modulation techniques used;
(iii) For codes and timing scheme: A table of bit sequences and their alphanumeric or indicator equivalents, and a statement of bit rise time, bit transmission rates, bit duration, and interval between bits;
(iv) A statement of amplitude-versus-time of the interrogation and reply formats, and an example of a typical message transmission and any synchronizing pulses utilized.
(4) A plan to show the implementation schedule during the initial license term.
(b) LMS stations are exempted from the identification requirements of § 90.425; however, the Commission may impose automatic station identification requirements when determined to be necessary for monitoring and enforcement purposes.