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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

21.2 - 21.4 GHz
EARTH EXPLORATION-SATELLITE (passive)
FIXED
MOBILE
SPACE RESEARCH (passive)

US532

FCC Rule Parts:
Fixed Microwave (101)

U.S. Federal Government Allocations

21.2 - 21.4 GHz
EARTH EXPLORATION-SATELLITE (passive)
FIXED
MOBILE
SPACE RESEARCH (passive)

US532

ITU Region 1 Allocations

21.2 - 21.4 GHz
EARTH EXPLORATION-SATELLITE (passive)
FIXED
MOBILE
SPACE RESEARCH (passive)

ITU Region 2 Allocations

21.2 - 21.4 GHz
EARTH EXPLORATION-SATELLITE (passive)
FIXED
MOBILE
SPACE RESEARCH (passive)

ITU Region 3 Allocations

21.2 - 21.4 GHz
EARTH EXPLORATION-SATELLITE (passive)
FIXED
MOBILE
SPACE RESEARCH (passive)

SpectrumWiki

Band Uses (21.2 - 21.4 GHz)

Wideband Global SATCOM (WGS) System

Common Carrier Fixed Point-to-Point Microwave

Mobile User Objective System (MUOS)

Advanced Extremely High Frequency (AEHF) Military Satellite System

Footnotes

US532 In the bands 21.2-21.4 GHz, 22.21-22.5 GHz, and 56.26-58.2 GHz, the space research and Earth exploration-satellite services shall not receive protection from the fixed and mobile services operating in accordance with the Table of Frequency Allocations.

SpectrumWiki

Band Uses (21.2 - 21.4 GHz)

Wideband Global SATCOM (WGS) System

The Wideband Global SATCOM (WGS) System provides fixed site satellite service at X-band and Ka-band from geosynchronous earth orbit in support of US military operations worldwide.

As of April 2013, four WGS satellites are in orbit, a fifth is scheduled for launch in 2013, a sixth has completed testing, and four more are being built.

Paired Frequency Bands
Paired Bands	Use	Service	Table
7250 - 7750 MHz	X-band downlink	Fixed-satellite	F
7900 - 8400 MHz	X-band uplink	Fixed-satellite	F
20.2 - 21.2 GHz	Ka-band downlink	Fixed-satellite	-
30 - 31 GHz	Ka-band uplink	Fixed-satellite	-

External Links:

WGS Article on Wikipedia

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Common Carrier Fixed Point-to-Point Microwave

These bands are permitted for use by common carrier fixed point-to-point microwave systems under Part 101, Subparts C & I of the FCC rules.

Frequency Bands
Band	Use	Service	Table
2450 - 2500 MHz	Common Carrier Fixed Point-to-Point Microwave	Fixed	N
3700 - 4200 MHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 20 MHz)	Fixed	N
5925 - 6425 MHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 30 MHz)	Fixed	N
6425 - 6525 MHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 25 MHz)	Fixed	N
6525 - 6875 MHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 30 MHz)	Fixed	N
10.55 - 10.68 GHz	Common Carrier Fixed Point-to-Point Microwave	Fixed	N
10.7 - 11.7 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 40 MHz)	Fixed	N
13.2 - 13.25 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 25 MHz)	Fixed	N
17.7 - 18.58 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 220 MHz)	Fixed	N
18.58 - 18.82 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 20 MHz)	Fixed	N
18.82 - 18.92 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 10 MHz)	Fixed	N
18.92 - 19.16 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 20 MHz)	Fixed	N
19.16 - 19.26 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 10 MHz)	Fixed	N
19.26 - 19.7 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 220 MHz)	Fixed	N
21.2 - 23.6 GHz	Common Carrier Fixed Point-to-Point Microwave (max bandwidth 50 MHz)	Fixed	N

External Links:

FCC NPRM and NOI on Backhaul (FCC 10-146)

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Mobile User Objective System (MUOS)

According to the U.S. Navy:

Mobile User Object System (MUOS) is a narrowband Military Satellite Communications (MILSATCOM) system that supports a worldwide, multi-Service population of mobile and fixed-site terminal users in the Ultra High Frequency (UHF) band, providing increased communications capabilities to smaller terminals while still supporting interoperability to legacy terminals.

MUOS adapts a commercial third generation Wideband Code Division Multiple Access (WCDMA) cellular phone network architecture and combines it with geosynchronous satellites (in place of cell towers) to provide a new and more capable UHF MILSATCOM system. The constellation of four operational satellites and ground network control will provide greater than 10 times the system capacity of the current UHF Follow-On (UFO) constellation.

The first MUOS satellite was launched February 24th, 2012, and began operations in August 2012. The MUOS constellation will eventually be comprised of four GSO satellites and one in-orbit spare. The operational satellites will be located at 177 deg W (Pacific), 100 deg W (CONUS), 15.5 deg W (Atlantic), and 75 deg E (Indian). The spare satellite will be parked at 72 deg E.

The satellites transmit 9.8 W of power into a 14 m dish. The service links are comprised of four 5 MHz-wide SA-WCDMA channels occupying the 20 MHz wide UHF uplink and downlink bands.

Frequency Bands
Band	Use	Service	Table
300 - 320 MHz	MUOS service uplink	Mobile-satellite	F
360 - 380 MHz	MUOS service downlink	Mobile-satellite	F
20.2 - 21.2 GHz	MUOS feeder downlink	Fixed-satellite	F
30 - 31 GHz	MUOS feeder uplink	Fixed-satellite	F

External Links:

"The Mobile User Objective System" (Johns Hopkins University Applied Physics Lab Technical Digest)

MUOS (Wikipedia)

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Advanced Extremely High Frequency (AEHF) Military Satellite System

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Legislation (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	21.2 GHz	21.3 GHz	21.4 GHz
Wavelength	1.4 cm	1.4 cm	1.4 cm
Band designator(s)	SHF; K-band (IEEE)	SHF; K-band (IEEE)	SHF; K-band (IEEE)
Isotropic collecting area	0.2 cm²	0.2 cm²	0.2 cm²
Free space loss (1 m)	59.0 dB	59.0 dB	59.1 dB
Free space loss (1 km)	119.0 dB	119.0 dB	119.1 dB
Free space loss (10 km)	139.0 dB	139.0 dB	139.1 dB
Free space loss (100 km)	159.0 dB	159.0 dB	159.1 dB
Free space loss (1000 km)	179.0 dB	179.0 dB	179.1 dB
Free space loss (35,786 km = GEO orbit)	210.1 dB	210.1 dB	210.1 dB
Free space loss (378,370 km = Moon)	230.5 dB	230.6 dB	230.6 dB