5.468 Additional allocation: in Saudi Arabia, Bahrain, Bangladesh, Brunei Darussalam, Burundi, Cameroon, China, Congo (Rep. of the), Djibouti, Egypt, the United Arab Emirates, Eswatini, Gabon, Guyana, Indonesia, Iran (Islamic Republic of), Iraq, Jamaica, Jordan, Kenya, Kuwait, Lebanon, Libya, Malaysia, Mali, Morocco, Mauritania, Nepal, Nigeria, Oman, Uganda, Pakistan, Qatar, Syrian Arab Republic, the Dem. People’s Rep. of Korea, Senegal, Singapore, Somalia, Sudan, Chad, Togo, Tunisia and Yemen, the frequency band 8 500-8 750 MHz is also allocated to the fixed and mobile services on a primary basis. (WRC 19)

5.469 Additional allocation: in Armenia, Azerbaijan, Belarus, the Russian Federation, Georgia, Hungary, Lithuania, Mongolia, Uzbekistan, Poland, Kyrgyzstan, the Czech Rep., Romania, Tajikistan, Turkmenistan and Ukraine, the band 8 500-8 750 MHz is also allocated to the land mobile and radionavigation services on a primary basis. (WRC 12)

G59 In the bands 902-928 MHz, 3100-3300 MHz, 3500-3650 MHz, 5250-5350 MHz, 8500-9000 MHz, 9200-9300 MHz, 13.4-14.0 GHz, 15.7-17.7 GHz and 24.05-24.25 GHz, all Federal non-military radiolocation shall be secondary to military radiolocation, except in the sub-band 15.7-16.2 GHz airport surface detection equipment (ASDE) is permitted on a co-equal basis subject to coordination with the military departments.

SpectrumWiki

Band Uses (8.5 - 8.55 GHz)

NASA Deep Space Network (DSN)

According to NASA:

"The NASA Deep Space Network - or DSN - is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions.

"The DSN currently consists of three deep-space communications facilities placed approximately 120 degrees apart around the world: at Goldstone, in California's Mojave Desert; near Madrid, Spain; and near Canberra, Australia. This strategic placement permits constant observation of spacecraft as the Earth rotates, and helps to make the DSN the largest and most sensitive scientific telecommunications system in the world."

Frequency Bands
Band	Use	Service	Table
25.5 - 27 GHz	DSN K-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research	F

Paired Frequency Bands
Paired Bands	Use	Service	Table
2025 - 2110 MHz	DSN S-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
2200 - 2290 MHz	DSN S-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
2110 - 2120 MHz	DSN S-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
2290 - 2300 MHz	DSN S-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7145 - 7190 MHz	DSN X-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
8400 - 8450 MHz	DSN X-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7190 - 7235 MHz	DSN X-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
8450 - 8500 MHz	DSN X-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
31.8 - 32.3 GHz	DSN Ka-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
34.2 - 34.7 GHz	DSN Ka-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F

External Links:

NASA Deep Space Network

NASA DSN Frequency and Channel Assignments (DSN 810-005 part 201)

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IEEE 802.15.4 HRP UWB

High pulse repetition frequency ultra-wideband (HPR UWB) is one of the physical layers defined for low data rate personal area network (LR-WPAN) communications in the IEEE 802.15.4 standard.

According to the FiRa Consortium:

"In challenging environments, such as parking structures, hospitals, airports and high density venues, ultra-wideband (UWB) technology outperforms other technologies in terms of accuracy, power consumption, robustness in wireless connectivity, and security, by a wide margin.

"UWB securely determines the relative position of peer devices with a very high degree of accuracy and can operate with line of sight at up to 200 meters. In contrast to narrow band wireless technologies, the use of wide bandwidth means UWB provides very stable connectivity, with little to no interference and offers highly precise positioning, even in congested multi-path signal environments.

"By calculating precise location, fine ranging based on UWB is a more secure approach to closing and opening locks, whether those locks are installed on a car door, a warehouse entryway, a conference room, or your front door."

Frequencies
Frequency	Bandwidth	Use	Service	Table
499.2 MHz	499.2 MHz	802.15.4 HRP UWB Channel 0	-	-
3494.4 MHz	499.2 MHz	802.15.4 HRP UWB Channel 1	-	-
3993.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 2	-	-
3993.6 MHz	1.3312 GHz	802.15.4 HRP UWB Channel 4	-	-
4492.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 3	-	-
6489.6 MHz	1.0816 GHz	802.15.4 HRP UWB Channel 7	-	-
6489.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 5	-	-
6988.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 6	-	-
7488 MHz	499.2 MHz	802.15.4 HRP UWB Channel 8	-	-
7987.2 MHz	1.3312 GHz	802.15.4 HRP UWB Channel 11	-	-
7987.2 MHz	499.2 MHz	802.15.4 HRP UWB Channel 9	-	-
8486.4 MHz	499.2 MHz	802.15.4 HRP UWB Channel 10	-	-
8985.6 MHz	499.2 MHz	802.15.4 HRP UWB Channel 12	-	-
9484.8 MHz	1.35497 GHz	802.15.4 HRP UWB Channel 15	-	-
9484.8 MHz	499.2 MHz	802.15.4 HRP UWB Channel 13	-	-
9984 MHz	499.2 MHz	802.15.4 HRP UWB Channel 14	-	-

External Links:

IEEE 802.15.4 standard (IEEE)

IEEE 802.15.4 (Wikipedia)

Associated Files:

802.15.4 HRP UWB PHY band allocation

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Possible new FSS and maritime mobile-satellite allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9

1.9 to consider, in accordance with Resolution COM6/15 (WRC-12):

1.9.1 possible new allocations to the fixed-satellite service in the frequency bands 7 150-7 250 MHz (space-to-Earth) and 8 400-8 500 MHz (Earth-to-space), subject to appropriate sharing conditions;

1.9.2 the possibility of allocating the bands 7 375-7 750 MHz and 8 025-8 400 MHz to the maritime-mobile satellite service and additional regulatory measures, depending on the results of appropriate studies

Frequency Bands
Band	Use	Service	Table
7150 - 7250 MHz	WRC-15 Agenda Item 1.9.1	Fixed-satellite	-
8400 - 8500 MHz	WRC-15 Agenda Item 1.9.1	Fixed-satellite	-

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Possible allocations for FSS and maritime mobile-satellite service, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9

Frequency Bands
Band	Use	Service	Table
7150 - 7250 MHz	Agenda Item 1.9.1	Fixed-satellite	-
7375 - 7750 MHz	Agenda Item 1.9.2 (maritime mobile-satellite)	Mobile-satellite	-
8025 - 8400 MHz	Agenda Item 1.9.2 (maritime mobile-satellite)	Mobile-satellite	-
8400 - 8500 MHz	Agenda Item 1.9.1	Fixed-satellite	-

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WRC-27 consideration of EESS (passive) allocations

WRC-27 agenda item 1.19:

to consider possible primary allocations in all Regions to the Earth exploration-satellite service (passive) in the frequency bands 4 200-4 400 MHz and 8 400-8 500 MHz, in accordance with Resolution 674 (WRC-23)

Frequency Bands
Band	Use	Service	Table
4200 - 4400 MHz	WRC-27 consideration of EESS (passive) allocations	Earth Exploration-satellite	-
8400 - 8500 MHz	WRC-27 consideration of EESS (passive) allocations	Earth Exploration-satellite	-

External Links:

WRC-27 agenda (see annex 1)

Resolution 674 (WRC-23)

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Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	8.5 GHz	8.525 GHz	8.55 GHz
Wavelength	3.5 cm	3.5 cm	3.5 cm
Band designator(s)	SHF; X-band (IEEE)	SHF; X-band (IEEE)	SHF; X-band (IEEE)
Isotropic collecting area	1.0 cm²	1.0 cm²	1.0 cm²
Free space loss (1 m)	51.0 dB	51.1 dB	51.1 dB
Free space loss (1 km)	111.0 dB	111.1 dB	111.1 dB
Free space loss (10 km)	131.0 dB	131.1 dB	131.1 dB
Free space loss (100 km)	151.0 dB	151.1 dB	151.1 dB
Free space loss (1000 km)	171.0 dB	171.1 dB	171.1 dB
Free space loss (35,786 km = GEO orbit)	202.1 dB	202.1 dB	202.2 dB
Free space loss (378,370 km = Moon)	222.6 dB	222.6 dB	222.6 dB