This question applies to a wider range, but I will be specific. I am trying to understand why the NTIA spectrum chart lists the band of 902.0000 MHz to 928.0000 MHz as being Federally exclusive for Radiolocation, yet private individuals hold licenses to operate.
One specific example, if a ULS range search is done nationwide for a group 927.3950 to 927.4050, you will find 174 licenses, spread among only two, one company, one individual. Just based on the surface information, exclusive does not seem to be exclusive....... or is there some relationship that allows the holders to use Federal frequencies for LMS? Is this like leasing Federal land from the BLM? If so, not so exclusive. Help me wrap my brain around this.
NO.
From the NTIA Manual of Regulations and Procedures for Federal Radio Frequency Management (Redbook) (
https://www.ntia.doc.gov/page/2011/...es-federal-radio-frequency-management-redbook) Chapter 4:
US Federal Government
902-928 RADIOLOCATION
FOOTNOTES
5.150 The following bands:
13553-13567 kHz (centre frequency 13560 kHz),
26957-27283 kHz (centre frequency 27120 kHz),
40.66-40.70 MHz (centre frequency 40.68 MHz),
902-928 MHz in Region 2 (centre frequency 915 MHz),
2400-2500 MHz (centre frequency 2450 MHz),
5725-5875 MHz (centre frequency 5800 MHz), and
24-24.25 GHz (centre frequency 24.125 GHz)
are also designated for industrial, scientific and medical (ISM) applications. Radiocommunication services operating within these bands must accept harmful interference which may be caused by these applications. ISM equipment operating in these bands is subject to the provisions of No. 15.13.
US218 The band 902-928 MHz is available for Location and Monitoring Service (LMS) systems subject to not causing harmful interference to the operation of all Federal stations authorized in this band. These systems must tolerate interference from the operation of industrial, scientific, and medical (ISM) equipment and the operation of Federal stations authorized in this band.
US267 In the band 902-928 MHz, amateur stations shall transmit only in the sub-bands 902-902.4, 902.6-904.3, 904.7-925.3, 925.7-927.3, and 927.7-928 MHz within the States of Colorado and Wyoming, bounded by the area of latitudes 39° N and 42° N and longitudes 103° W and 108° W.
US275 The band 902-928 MHz is allocated on a secondary basis to the amateur service subject to not causing harmful interference to the operations of Federal stations authorized in this band or to Location and Monitoring Service (LMS) systems. Stations in the amateur service must tolerate any interference from the operations of industrial, scientific, and medical (ISM) devices, LMS systems, and the operations of Federal stations authorized in this band. Further, the amateur service is prohibited in those portions of Texas and New Mexico bounded on the south by latitude 31° 41' North, on the east by longitude 104° 11' West, and on the north by latitude 34° 30' North, and on the west by longitude 107° 30' West; in addition, outside this area but within 150 miles of these boundaries of White Sands Missile Range the service is restricted to a maximum transmitter peak envelope power output of 50 watts.
G11 Federal fixed and mobile radio services, including low power radio control operations, are permitted in the band 902-928 MHz on a secondary basis.
Non-Federal Government
902-928
Same footnotes as above.
FCC Rule Part(s)
902-928 ISM Equipment (18)
Private Land Mobile (90)
Amateur Radio (97)
