5.149   In making assignments to stations of other services to which the bands:
13 360-13 410 kHz,
25 550-25 670 kHz,
37.5-38.25 MHz,
73-74.6 MHz in Regions 1 and 3,
150.05-153 MHz in Region 1,
322-328.6 MHz,
406.1-410 MHz,
608-614 MHz in Regions 1 and 3,
1 330-1 400 MHz,
1 610.6-1 613.8 MHz,
1 660-1 670 MHz,
1 718.8-1 722.2 MHz,
2 655-2 690 MHz,
3 260-3 267 MHz,
3 332-3 339 MHz,
3 345.8-3 352.5 MHz,
4 825-4 835 MHz, 4 950-4 990 MHz,
4 990-5 000 MHz,
6 650-6 675.2 MHz,
10.6-10.68 GHz,
14.47-14.5 GHz,
22.01-22.21 GHz,
22.21-22.5 GHz,
22.81-22.86 GHz,
23.07-23.12 GHz,
31.2-31.3 GHz,
31.5-31.8 GHz in Regions 1 and 3,
36.43-36.5 GHz,
42.5-43.5 GHz,
48.94-49.04 GHz,
76-86 GHz,
92-94 GHz,
94.1-100 GHz, 102-109.5 GHz,
111.8-114.25 GHz,
128.33-128.59 GHz,
129.23-129.49 GHz,
130-134 GHz,
136-148.5 GHz,
151.5-158.5 GHz,
168.59-168.93 GHz,
171.11-171.45 GHz,
172.31-172.65 GHz,
173.52-173.85 GHz,
195.75-196.15 GHz,
209-226 GHz,
241-250 GHz,
252-275 GHz
are allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29). (WRC 07)

5.341   In the bands 1 400-1 727 MHz, 101-120 GHz and 197-220 GHz, passive research is being conducted by some countries in a programme for the search for intentional emissions of extraterrestrial origin.

5.384A   The frequency bands 1 710-1 885 MHz, 2 300-2 400 MHz and 2 500-2 690 MHz, or portions thereof, are identified for use by administrations wishing to implement International Mobile Telecommunications (IMT) in accordance with Resolution 223 (Rev.WRC 15)*. This identification does not preclude the use of these frequency bands by any application of the services to which they are allocated and does not establish priority in the Radio Regulations. (WRC 15)

5.385   Additional allocation: the band 1 718.8-1 722.2 MHz is also allocated to the radio astronomy service on a secondary basis for spectral line observations. (WRC 2000)

5.386   Additional allocation: the frequency band 1 750-1 850 MHz is also allocated to the space operation (Earth-to-space) and space research (Earth-to-space) services in Region 2 (except in Mexico), in Australia, Guam, India, Indonesia and Japan on a primary basis, subject to agreement obtained under No. 9.21, having particular regard to troposcatter systems. (WRC 15)

5.387   Additional allocation: in Belarus, Georgia, Kazakhstan, Kyrgyzstan, Romania, Tajikistan and Turkmenistan, the band 1 770-1 790 MHz is also allocated to the meteorological-satellite service on a primary basis, subject to agreement obtained under No. 9.21. (WRC 12)

5.388   The frequency bands 1 885-2 025 MHz and 2 110-2 200 MHz are intended for use, on a worldwide basis, by administrations wishing to implement International Mobile Telecommunications (IMT). Such use does not preclude the use of these frequency bands by other services to which they are allocated. The frequency bands should be made available for IMT in accordance with Resolution 212 (Rev.WRC 15)* (see also Resolution 223 (Rev.WRC 15)*). (WRC 15)

5.388A   In Regions 1 and 3, the bands 1 885-1 980 MHz, 2 010-2 025 MHz and 2 110-2 170 MHz and, in Region 2, the bands 1 885-1 980 MHz and 2 110-2 160 MHz may be used by high altitude platform stations as base stations to provide International Mobile Telecommunications (IMT), in accordance with Resolution 221 (Rev.WRC 07). Their use by IMT applications using high altitude platform stations as base stations does not preclude the use of these bands by any station in the services to which they are allocated and does not establish priority in the Radio Regulations. (WRC-12)

5.388B   In Algeria, Saudi Arabia, Bahrain, Benin, Burkina Faso, Cameroon, Comoros, Côte d’Ivoire, China, Cuba, Djibouti, Egypt, United Arab Emirates, Eritrea, Ethiopia, Gabon, Ghana, India, Iran (Islamic Republic of), Israel, Jordan, Kenya, Kuwait, Lebanon, Libya, Mali, Morocco, Mauritania, Nigeria, Oman, Uganda, Pakistan, Qatar, the Syrian Arab Republic, Senegal, Singapore, Sudan, South Sudan, Tanzania, Chad, Togo, Tunisia, Yemen, Zambia and Zimbabwe, for the purpose of protecting fixed and mobile services, including IMT mobile stations, in their territories from co channel interference, a high altitude platform station (HAPS) operating as an IMT base station in neighbouring countries, in the frequency bands referred to in No. 5.388A, shall not exceed a co-channel power flux-density of −127 dB(W/(m² · MHz)) at the Earth’s surface outside a country’s borders unless explicit agreement of the affected administration is provided at the time of the notification of HAPS. (WRC 19)

US91    In the band 1755-1780 MHz, the following provisions shall apply:

    (a) Non-Federal use of the band 1755-1780 MHz by the fixed and mobile services is restricted to stations in the Advanced Wireless Service (AWS). Base stations that enable AWS mobile and portable stations to operate in the band 1755-1780 MHz must be successfully coordinated on a nationwide basis prior to operation, unless otherwise specified by Commission rule, order, or notice.

    (b) In the band 1755-1780 MHz, the Federal systems listed below operate on a co-equal, primary basis with AWS stations. All other Federal stations in the fixed and mobile services identified in an approved Transition Plan will operate on a primary basis until reaccommodated in accordance with 47 CFR part 301.

        (1) Joint Tactical Radio Systems (JTRS) may operate indefinitely at the following locations:

        (2) Air combat training system (ACTS) stations may operate on two frequencies within two geographic zones that are defined by the following coordinates:

    Note: ACTS transmitters may cause interference to AWS base stations between separation distances of 285 km (minimum) and 415 km (maximum).

        (3) In the sub-band 1761-1780 MHz, Federal earth stations in the space operation service (Earth-to-space) may transmit at the following 25 sites and non-Federal base stations must accept harmful interference caused by the operation of these earth stations:

    Note: The coordinates are specified in the conventional manner (North latitude, West longitude), except that the Guam (GU) entries are specified in terms of East longitude. Use at Cape Canaveral AFS is restricted to launch support only. If required, successfully coordinated with all affected AWS licensees, and authorized by NTIA, reasonable modifications of these grandfathered Federal systems beyond their current authorizations or the addition of new earth station locations may be permitted. The details of the coordination must be filed with NTIA and FCC.

    (c) In the band 1755-1780 MHz, the military services may conduct Electronic Warfare (EW) operations on Federal ranges and within associated airspace on a non-interference basis with respect to non-Federal AWS operations and shall not constrain implementation of non-Federal AWS operations. This use is restricted to Research, Development, Test and Evaluation (RDT&E), training, and Large Force Exercise (LFE) operations.

US378   In the band 1710-1755 MHz, the following provisions apply:

    (a) Federal fixed and tactical radio relay stations may operate indefinitely on a primary basis within 80 km of Cherry Point, NC (34° 58' N, 76° 56' W) and Yuma, AZ (32° 32' N, 113° 58' W).

    (b) Federal fixed and tactical radio relay stations shall operate on a secondary basis to primary non-Federal operations at the 14 sites listed below:

    (c) In the sub-band 1710-1720 MHz, precision guided munitions shall operate on a primary basis until inventory is exhausted or until December 31, 2008, whichever is earlier.

    (d) All other Federal stations in the fixed and mobile services shall operate on a primary basis until reaccommodated in accordance with the Commercial Spectrum Enhancement Act.

US385   Radio astronomy observations may be made in the bands 1350-1400 MHz, 1718.8-1722.2 MHz, and 4950-4990 MHz on an unprotected basis, and in the band 2655-2690 MHz on a secondary basis, at the following radio astronomy observatories:

    (a) In the bands 1350-1400 MHz and 4950-4990 MHz, every practicable effort will be made to avoid the assignment of frequencies to stations in the fixed and mobile services that could interfere with radio astronomy observations within the geographic areas given above. In addition, every practicable effort will be made to avoid assignment of frequencies in these bands to stations in the aeronautical mobile service which operate outside of those geographic areas, but which may cause harmful interference to the listed observatories. Should such assignments result in harmful interference to these observatories, the situation will be remedied to the extent practicable.

    (b) In the band 2655-2690 MHz, for radio astronomy observations performed at the locations listed above, licensees are urged to coordinate their systems through the National Science Foundation, Division of Astronomical Sciences, Electromagnetic Spectrum Management Unit, 2415 Eisenhower Avenue, Alexandria, VA 22314; Email: esm@nsf.gov.

SpectrumWiki

1755 - 1850 MHz Band Although heavily used for federal government operations, this band is on the short list for accommodating mobile broadband applications, either by sharing or by relocating federal systems. It would be a natural completion of spectrum at 1710-1755 (AWS-1) that has already been reallocated, and the existing 1850-1990 MHz PCS band. NTIA has issued a report on the costs associated with moving federal systems out of this band. See the related documents list for a link to the document. The bottom line is that, as of 2012, it would cost about $18 billion and take 10 years to clear the band, according to NTIA. The following historical material on the 1755-1850 MHz band is from Wireless Spectrum Finder by Benn Kobb, last published in 2001. Wireless Spectrum Finder is now (c) SpectrumWiki.com: ***** International Mobile Telecommunications-2000 (IMT-2000) is a global personal communications service via terrestrial and satellite links (see 1850—1990 MHz). Among the spectrum identified for IMT-2000 by the World Radio Conference-2000 (WRC-2000) was 1710—1885 MHz. This is a critical band in the defense infrastructure. Federal frequency assignments in 1755—1850 MHz are extensive and nationwide. Certain key sites will need special interference protection from prospective IMT-2000 deployments. In the FCC’s words, “potentially serious sharing problems” arise between IMT-2000 and federal systems in this band. The Air Force Satellite Control Network (AFSCN) Space-Ground Link Subsystem (SGLS) in 1761—1842 MHz (uplink) and 2200—2290 MHz (downlink) controls numerous defense and research satellites, including British and NATO systems and the Global Positioning System (GPS) as well as Space Shuttle functions. U.S.-based SGLS primary stations are in Colorado and California, with tracking stations nationwide and at Diego Garcia, Greenland and the United Kingdom. SGLS also uses transportable stations, normally operated from military bases, to provide coverage for launch and orbit operations. Mobile Subscriber Equipment (MSE, Army) and Digital Wideband Transmission System (DWTS, Navy) are microwave links for use in several bands including 1755—1850 MHz. Video teleconferencing, e-mail, telephone and Internet connectivity are among the services they provide. Air Combat Training Systems (ACTS) and Joint Tactical Combat Training Systems (JTCTS) use this spectrum to compute and transmit altitude, velocity, and weapons status in simulations. The JTCTS provides aircrew training using only links between aircraft, without the need for instrumented ground facilities. Other defense uses in this part of the spectrum include tactical radio relay; television from aircraft-mounted cameras for remote piloting and monitoring of civil disturbances; wireless local area networks for combat troops; intrusion detection; dismounted soldier identification; and telecommand of robots. Another interesting use of this spectrum is in control of precision weapons used against "high-value" and hardened enemy targets. Equipped with cameras or infrared sensors, GPS receivers, and wireless control links, the weapons are guided to the target by an officer watching on video. Aerostat balloons used to detect low-flying aircraft in drug interdiction use voice and data links in this band. The Navy operates high-speed interceptor boats that transmit video in this band to nearby warships. This is key government spectrum for non-defense, fixed microwave links. Among the fixed service users are the Department of Energy for control and sensing in electric utility operations; the Department of Justice and the Department of Treasury for linking law enforcement land mobile systems; and the Department of the Interior and the Department of Agriculture for forest and park management, and emergency communications in remote areas. The Army Corps of Engineers uses this band to control hydropower stations and provide flood control and maintenance communications at inland waterway facilities. The fixed-link portions of Coast Guard safety systems (see 154—156.2475 MHz) use this band. Many of these systems are being moved to higher bands. IMT-2000 Issues The incumbency and wide coverage areas of these federal operations, especially SGLS, MSE/DWTS, ACTS and fixed systems, greatly impacts the introduction of IMT-2000 into the 1700 MHz spectrum, particularly the 1805—1850 MHz segment. A variety of techniques will be needed to prevent interaction between IMT-2000 and defense systems, including band segmenting, exploitation of antenna capabilities, siting of base stations, changes to power levels, possible “keep away” beacons, and cooperative scheduling of operations. Receivers already on satellites could face degradation from IMT-2000 transmitters as market penetration for the new service increases. The need for these precautions will likely impact the revenues that IMT-2000 license auctions can generate. Government users who must relocate their stations will be entitled to compensation by new entrants. ***** (End of historical information from Wireless Spectrum Finder) Frequency Bands Band Use Service Table 1755 - 1850 MHz 1755-1850 MHz band - F Display this entry in a page by itself Edit
Advanced Wireless Services (AWS-1) Band The band 1710-1755 MHz (mobile transmit) is paired with 2110-2155 MHz (base transmit) to create the first band dedicated specifically for what the FCC calls Advanced Wireless Services (AWS). According to the Commission, AWS refers to 3G systems and beyond (also referred to as International Mobile Telecommunications 2000, or IMT-2000, by the ITU). The 1710-1755 MHz band was created out of spectrum that was previously reserved for the federal government only. In 1995, it was identified as feasible for shared government/non-government use. In accordance with footnote US378, some government operations, in particular fixed and tactical radio systems near Cherry Point, NC, and Yuma, AZ, will continue to operate in this band on a primary basis. The band 2110-2155 MHz was created from spectrum that had previously been used for fixed microwave links (2110-2150 MHz) and for the Multipoint Distribution Service (MDS) (2150-2155 MHz). The FCC declared these bands for use by AWS in 2002. As of mid-2012, some operators in the U.S., such as T-Mobile, are using AWS-1 spectrum to provide 4G service (HSPA+ in the case of T-Mobile). Paired Frequency Bands Paired Bands Use Service Table 1710 - 1755 MHz AWS-1 (mobile transmit) Mobile N 2110 - 2155 MHz AWS-1 (base transmit) Mobile N External Links: FCC Order declaring 1710-1755/2110-2155 MHz for AWS (FCC 02-304) Display this entry in a page by itself Edit
Broadband Personal Communications Service (PCS) The broadband PCS band was originally 1930-1990 MHz (base transmit) paired with 1850-1910 MHz (mobile transmit). The paired band was subdivided into six sub-bands, A-F. The spectrum in the 1910-1930 MHz portion was dedicated to low-power unlicensed PCS applications. However, the 1910-1920 MHz portion has since been further divided into a "G block" portion at 1910-1915 MHz (paired with 1990-1995 MHz) that was given to Nextel in return for Nextel vacating some 800 MHz spectrum that caused interference to Public Safety; and a "H block" portion at 1915-1920 MHz (paired with 1995-2000 MHz) that comprises the Advanced Wireless Services-2 (AWS-2) block. The block 1920-1930 MHz is reserved for Unlicensed PCS operation pursuant to Part 15 subpart D. Paired Frequency Bands Paired Bands Use Service Table 1850 - 1865 MHz PCS A block (mobile transmit) Mobile N 1930 - 1945 MHz PCS A block (base transmit) Mobile N 1865 - 1870 MHz PCS D block (mobile transmit) Mobile N 1945 - 1950 MHz PCS D block (base transmit) Mobile N 1870 - 1885 MHz PCS B block (mobile transmit) Mobile N 1950 - 1965 MHz PCS B block (base transmit) Mobile N 1885 - 1890 MHz PCS E block (mobile transmit) Mobile N 1965 - 1970 MHz PCS E block (base transmit) Mobile N 1890 - 1895 MHz PCS F block (mobile transmit) Mobile N 1970 - 1975 MHz PCS F block (base transmit) Mobile N 1895 - 1910 MHz PCS C block (mobile transmit) Mobile N 1975 - 1990 MHz PCS C block (base transmit) Mobile N 1910 - 1915 MHz PCS G block (mobile transmit) (Nextel only) Mobile N 1990 - 1995 MHz PCS G block (base transmit) (Nextel only) Mobile N 1915 - 1920 MHz PCS H block (mobile transmit) (also known as AWS-2) Mobile N 1995 - 2000 MHz PCS H block (base transmit) (also known as AWS-2) Mobile N Associated Files: U.S. broadband PCS band plan (FCC). Display this entry in a page by itself Edit
European Union 3G & 4G (LTE) Band In November, 2012, the European Commission adopted new rules clearing the way for the frequency band 1920-1980 MHz, paired with 2110-2170 MHz, to be used for 4G (LTE) services, in addition to its existing designated use for 3G services. Paired Frequency Bands Paired Bands Use Service Table 1920 - 1980 MHz European Union 3G & 4G band Mobile - 2110 - 2170 MHz European Union 3G & 4G band Mobile - Display this entry in a page by itself Edit
Standard LTE Bands The following bands have been defined by 3GPP as standard LTE bands for Frequency Division Duplex (FDD, where mobile and base stations transmit in separate bands) and Time Division Duplex (TDD, where mobiles and bases transmit and receive on the same frequency). These bands are defined in 3GPP TS 36.101 (link below). Note that bands 15 & 16 and 30-32 are not defined, and the FDD band 29 is used for downlink-only for carrier aggregation, so it has no corresponding uplink band. Uplinks refer to the frequencies used for handsets and other user devices to transmit to the base station, and downlinks refer to frequencies used by base stations to transmit to the user devices. Paired Frequency Bands Paired Bands Use Service Table 452.5 - 457.5 MHz LTE band 31 FDD uplink Mobile - 462.5 - 467.5 MHz LTE band 31 FDD downlink Mobile - 699 - 716 MHz LTE band 12 FDD uplink Mobile - 729 - 746 MHz LTE band 12 FDD downlink Mobile - 703 - 748 MHz LTE band 28 FDD uplink Mobile - 758 - 803 MHz LTE band 28 FDD downlink Mobile - 704 - 716 MHz LTE band 17 FDD uplink Mobile - 734 - 746 MHz LTE band 17 FDD downlink Mobile - 746 - 756 MHz LTE band 13 FDD downink Mobile - 777 - 787 MHz LTE band 13 FDD uplink Mobile - 758 - 768 MHz LTE band 14 FDD downlink Mobile - 788 - 798 MHz LTE band 14 FDD uplink Mobile - 807 - 824 MHz LTE band 27 FDD uplink Mobile - 852 - 869 MHz LTE band 27 FDD downlink Mobile - 814 - 849 MHz LTE band 26 FDD uplink Mobile - 859 - 894 MHz LTE band 26 FDD downlink Mobile - 815 - 830 MHz LTE band 18 FDD uplink Mobile - 860 - 875 MHz LTE band 18 FDD downlink Mobile - 824 - 849 MHz LTE band 5 FDD uplink Mobile - 869 - 894 MHz LTE band 5 FDD downlink Mobile - 830 - 840 MHz LTE band 6 FDD uplink ("band 6 is not applicable" according to the standard) Mobile - 875 - 885 MHz LTE band 6 FDD downlink ("band 6 is not applicable" according to the standard) Mobile - 830 - 845 MHz LTE band 19 FDD uplink Mobile - 875 - 890 MHz LTE band 19 FDD downlink Mobile - 791 - 821 MHz LTE band 20 FDD downlink Mobile - 832 - 862 MHz LTE band 20 FDD uplink Mobile - 880 - 915 MHz LTE band 8 FDD uplink Mobile - 925 - 960 MHz LTE band 8 FDD downlink Mobile - 1427.9 - 1447.9 MHz LTE band 11 FDD uplink Mobile - 1475.9 - 1495.9 MHz LTE band 11 FDD downlink Mobile - 1447.9 - 1462.9 MHz LTE band 21 FDD uplink Mobile - 1495.9 - 1510.9 MHz LTE band 21 FDD downlink Mobile - 1525 - 1559 MHz LTE band 24 FDD downlink Mobile - 1626.5 - 1660.5 MHz LTE band 24 FDD uplink Mobile - 1710 - 1755 MHz LTE band 4 FDD uplink Mobile - 2110 - 2155 MHz LTE band 4 FDD downlink Mobile - 1710 - 1785 MHz LTE band 3 FDD uplink Mobile - 1805 - 1880 MHz LTE band 3 FDD downlink Mobile - 1710 - 1770 MHz LTE band 10 FDD uplink Mobile - 2110 - 2170 MHz LTE band 10 FDD downlink Mobile - 1749.9 - 1784.9 MHz LTE band 9 FDD uplink Mobile - 1844.9 - 1879.9 MHz LTE band 9 FDD downlink - - 1850 - 1910 MHz LTE band 2 FDD uplink Mobile - 1930 - 1990 MHz LTE band 2 FDD downlink Mobile - 1850 - 1915 MHz LTE band 25 FDD uplink Mobile - 1930 - 1995 MHz LTE band 25 FDD downlink Mobile - 1920 - 1980 MHz LTE band 1 FDD uplink Mobile - 2110 - 2170 MHz LTE band 1 FDD downlink Mobile - 2000 - 2020 MHz LTE band 23 FDD uplink Mobile - 2180 - 2200 MHz LTE band 23 FDD downlink Mobile - 2305 - 2315 MHz LTE band 30 FDD uplink Mobile - 2350 - 2360 MHz LTE band 30 FDD downlink Mobile - 2500 - 2570 MHz LTE band 7 FDD uplink Mobile - 2620 - 2690 MHz LTE band 7 FDD downlink Mobile - 3410 - 3490 MHz LTE band 22 FDD uplink Mobile - 3510 - 3590 MHz LTE band 22 FDD downlink Mobile - Frequency Bands Band Use Service Table 703 - 803 MHz LTE band 44 TDD Mobile - 717 - 728 MHz LTE band 29 FDD unpaired downlink (carrier aggregation use only) Mobile - 1850 - 1910 MHz LTE band 35 TDD Mobile - 1880 - 1920 MHz LTE band 39 TDD Mobile - 1900 - 1920 MHz LTE band 33 TDD Mobile - 1910 - 1930 MHz LTE band 37 TDD Mobile - 1930 - 1990 MHz LTE band 36 TDD Mobile - 2010 - 2025 MHz LTE band 34 TDD Mobile - 2300 - 2400 MHz LTE band 40 TDD Mobile - 2496 - 2690 MHz LTE band 41 TDD Mobile - 2570 - 2620 MHz LTE band 38 TDD Mobile - 3400 - 3600 MHz LTE band 42 TDD Mobile - 3600 - 3800 MHz LTE band 43 TDD Mobile - External Links: 3GPP TS 36.101 specification Display this entry in a page by itself Edit
High Altitude Platform Station (HAPS) The ITU has identified various bands for use by High Altitude Platform Stations (HAPS), which are defined as "a station located on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth." One set of bands (47.2-47.5 and 47.9-48.2 GHz) is identified on a worldwide basis. The others apply regionally or in a subset of countries. Although there was a flurry of activity related to HAPS beginning in the late 1990's, no HAPS systems were ever developed. As of 2015, there is renewed interest in HAPS for applications involving telecommunications from Unmanned Aerial Systems (UAS). HAPS is declared as an application of the fixed service. Paired Frequency Bands Paired Bands Use Service Table 6440 - 6520 MHz HAPS-to-ground in 5 countries (per 5.457) Fixed - 6560 - 6640 MHz Ground-to-HAPS in 5 countries (per 5.457) Fixed - 27.9 - 28.2 GHz HAPS-to-ground in 23 countries (per 5.537A) Fixed - 31 - 31.3 GHz Ground-to-HAPS in 23 countries (per 5.543A) Fixed - Frequency Bands Band Use Service Table 1885 - 1980 MHz HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A) Fixed - 2010 - 2025 MHz HAPS service links for IMT in Regions 1 & 3 (per 5.388A) Fixed - 2110 - 2160 MHz HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A) Fixed - 2160 - 2170 MHz HAPS service links for IMT in Region 2 (per 5.388A) Fixed - 47.2 - 47.5 GHz HAPS (per 5.552A) Fixed - 47.9 - 48.2 GHz HAPS (per 5.552A) Fixed - Display this entry in a page by itself Edit
WRC-27 possible allocations for low-data rate NGSO MSS systems WRC-27 agenda item 1.12: to consider, based on the results of studies, possible allocations to the mobile-satellite service and possible regulatory actions in the frequency bands 1 427-1 432 MHz (space-to-Earth), 1 645.5-1 646.5 MHz (space-to-Earth) (Earth-to-space), 1 880-1 920 MHz (space-to-Earth) (Earth-to-space) and 2 010-2 025 MHz (space-to-Earth) (Earth-to-space) required for the future development of low-datarate non-geostationary mobile-satellite systems, in accordance with Resolution 252 (WRC-23) Frequency Bands Band Use Service Table 1427 - 1432 MHz WRC-27 possible allocations for low-data rate NGSO MSS systems Mobile-satellite - 1645.5 - 1646.5 MHz WRC-27 possible allocations for low-data rate NGSO MSS systems Mobile-satellite - 1880 - 1920 MHz WRC-27 possible allocations for low-data rate NGSO MSS systems Mobile-satellite - 2010 - 2025 MHz WRC-27 possible allocations for low-data rate NGSO MSS systems Mobile-satellite - External Links: Resolution 252 (WRC-23) WRC-27 agenda (see annex 1) Display this entry in a page by itself Edit