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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

3100 - 3300 MHz
Earth exploration-satellite (active)
Space research (active)
Radiolocation

US342

FCC Rule Parts:
Private Land Mobile (90)

U.S. Federal Government Allocations

3100 - 3300 MHz
RADIOLOCATION G59
Earth exploration-satellite (active)
Space research (active)

US342

ITU Region 1 Allocations

3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)

5.149 5.428

ITU Region 2 Allocations

3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)

5.149 5.428

ITU Region 3 Allocations

3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)

5.149 5.428

SpectrumWiki

Band Uses (3.1 - 3.3 GHz)

SPY-1 Shipborne Air Surveillance Radar

WRC 23 Agenda Item 1.2 IMT identification

IEEE 802.15.4 HRP UWB

Through-wall Radar waiver

Footnotes

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)

5.428 Additional allocation: in Kyrgyzstan and Turkmenistan, the frequency band 3 100-3 300 MHz is also allocated to the radionavigation service on a primary basis. (WRC 19)

US342 In making assignments to stations of other services to which the bands:

13 360-13 410 kHz	42.77-42.87 GHz*
25 550-25 670 kHz	43.07-43.17 GHz*
37.5-38.25 MHz	43.37-43.47 GHz*
322-328.6 MHz*	48.94-49.04 GHz*
1330-1400 MHz*	76-86 GHz
1610.6-1613.8 MHz*	92-94 GHz
1660-1660.5 MHz*	94.1-100 GHz
1668.4-1670 MHz*	102-109.5 GHz
3260-3267 MHz*	111.8-114.25 GHz
3332-3339 MHz*	128.33-128.59 GHz*
3345.8-3352.5 MHz*	129.23-129.49 GHz*
4825-4835 MHz*	130-134 GHz
4950-4990 MHz	136-148.5 GHz
6650-6675.2 MHz*	151.5-158.5 GHz
14.47-14.5 GHz*	168.59-168.93 GHz*
22.01-22.21 GHz*	171.11-171.45 GHz*
22.21-22.5 GHz	172.31-172.65 GHz*
22.81-22.86 GHz*	173.52-173.85 GHz*
23.07-23.12 GHz*	195.75-196.15 GHz*
31.2-31.3 GHz	209-226 GHz
36.43-36.5 GHz*	241-250 GHz
42.5-43.5 GHz	252-275 GHz

are allocated (*indicates radio astronomy use for spectral line observations), all practicable steps shall be taken 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 ITU Radio Regulations at Nos. 4.5 and 4.6 and Article 29).

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 (3.1 - 3.3 GHz)

SPY-1 Shipborne Air Surveillance Radar

The SPY-1 is a U.S. Navy phased array surveillance radar that is a component of the Aegis combat system. It is installed on guided missile cruisers (CG) and guided missile destroyers (DDG). Several variants of the SPY-1, including the -1A, -1B(V), -1D, and -1F are in service, modified to fit specific types of vessels. The -1F is not installed on any U.S. ships.

U.S. land-based test and training sites for the SPY-1 are at Moorestown, NJ, and Wallops Island, VA.

The SPY-1 possesses the following technical characteristics according to ITU-R Recommendation M.1465:

-Modulation: Q7N (angle-modulated, two or more digital channels, no information transmitted)

-Tuning range: 3100-3500 MHz

-Peak tx power into antenna: 4 – 6.4 MW (66 – 68 dBW)

-Antenna gain: 42 dBi

-Peak EIRP: 63 – 101 GW (108-110 dBW)

-Pulse width: 6.4 – 51.2 microseconds

-Pulse repetition rate: 0.152-6 kHz

-Duty cycle: 0.8-2.0%

-Tx bandwidth (-3 dB): 4 MHz

-Average EIRP (=peak EIRP x duty cycle): 504 MW – 2 GW (87-93 dBW)

-Minimum effective isotropic power spectral density: 126 W/Hz (51 dBm/Hz)

-Maximum effective power isotropic spectral density: 500 W/Hz (57 dBm/Hz)

-Antenna type: Phased array

-Beamwidth: 1.7 deg (azimuth and elevation)

-Polarization: Vertical

-Antenna rotation rate: N/A (electronically steered)

The SPY-1 is known to emit very high levels of out-of-band emissions outside of the 3100-3500 MHz band.

Frequency Bands
Band	Use	Service	Table
3100 - 3500 MHz	SPY-1 Shipborne Air Surveillance Radar	Radiolocation	F

Associated Files:

SPY-1 phased array antenna panels on the guided missile destroyer USS Laboon, photographed in the Chesapeake Bay near Norfolk, Virginia.

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WRC 23 Agenda Item 1.2 IMT identification

"to consider identification of the frequency bands 3 300-3 400 MHz, 3 600-3 800 MHz, 6 425-7 025 MHz, 7 025-7 125 MHz and 10.0-10.5 GHz for International Mobile Telecommunications (IMT), including possible additional allocations to the mobile service on a primary basis, in accordance with Resolution 245 (WRC-19);"

Frequency Bands
Band	Use	Service	Table
3300 - 3400 MHz	Possible IMT identification	Mobile	-
3600 - 3800 MHz	Possible IMT identification	Mobile	-
6425 - 7025 MHz	Possible IMT identification	Mobile	-
7025 - 7125 MHz	Possible IMT identification	Mobile	-

External Links:

WRC-23 Agenda

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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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Through-wall Radar waiver

Under a waiver granted to L-3 CyTerra, a division of L-3
Communications Corporation, the company can certify and market frequency-stepping radars in the 3100-3500 MHz band. Units must be licensed under Part 90 of the FCC rules. Terms of the waiver limit eligibility to state and local police and firefighters, and limit use to actual emergencies involving threats to safety of life, and necessary training. Another company has received an identical "me too" waiver.

Frequency Bands
Band	Use	Service	Table
3100 - 3500 MHz	L-3 CyTerra through-wall radar	Radiolocation	N

External Links:

CyTerra waiver grant

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Related Documents, Links, and Multimedia:

Band Plan (1)

Other (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	3.1 GHz	3.2 GHz	3.3 GHz
Wavelength	9.7 cm	9.4 cm	9.1 cm
Band designator(s)	SHF; S-band (IEEE)	SHF; S-band (IEEE)	SHF; S-band (IEEE)
Isotropic collecting area	7.4 cm²	7.0 cm²	6.6 cm²
Free space loss (1 m)	42.3 dB	42.6 dB	42.8 dB
Free space loss (1 km)	102.3 dB	102.6 dB	102.8 dB
Free space loss (10 km)	122.3 dB	122.6 dB	122.8 dB
Free space loss (100 km)	142.3 dB	142.6 dB	142.8 dB
Free space loss (1000 km)	162.3 dB	162.6 dB	162.8 dB
Free space loss (35,786 km = GEO orbit)	193.4 dB	193.6 dB	193.9 dB
Free space loss (378,370 km = Moon)	213.8 dB	214.1 dB	214.4 dB