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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

1427 - 1429.5 MHz
LAND MOBILE (telemetry and telecommand)
FIXED (telemetry)

5.341 US79 US350 NG338

FCC Rule Parts:
Private Land Mobile (90)
Personal Radio (95)

U.S. Federal Government Allocations

1427 - 1429.5 MHz
LAND MOBILE (medical telemetry and medical telecommand) US350

5.341 US79

ITU Region 1 Allocations

1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile

5.338A 5.341

ITU Region 2 Allocations

1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile

5.338A 5.341

ITU Region 3 Allocations

1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile

5.338A 5.341

SpectrumWiki

Wireless Medical Telemetry Service (WMTS)

Standard LTE Bands

Radio Astronomy (1400-1427 MHz)

Soil Moisture Active Passive (SMAP) Satellite

WRC-27 possible allocations for low-data rate NGSO MSS systems

Footnotes

5.338A In the bands 1350-1400 MHz, 1427-1452 MHz, 22.55-23.55 GHz, 30-31.3 GHz, 49.7-50.2 GHz, 50.4-50.9 GHz and 51.4-52.6 GHz, Resolution 750 (WRC-07) applies. (WRC-07)

5.341 In the bands 1400-1727 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.

Could not find US79

US350 In the band 1427-1432 MHz, Federal use of the land mobile service and non-Federal use of the fixed and land mobile services is limited to telemetry and telecommand operations as described below:

(a) Medical operations. The use of the band 1427-1432 MHz for medical telemetry and telecommand operations (medical operations) shall be authorized for both Federal and non-Federal stations.
- (1) Medical operations shall be authorized on a primary basis in the band 1427-1429.5 MHz and on a secondary basis in the band 1429.5-1432 MHz in the United States and its insular areas, except in the following locations: Austin/Georgetown, TX; Detroit and Battle Creek, MI; Pittsburgh, PA; Richmond/Norfolk, VA; Spokane, WA; and Washington, DC metropolitan area (collectively, the “carved-out” locations). See 47 CFR 90.259(b)(4) and 95.630(b) for a detailed description of these locations.
- (2) In the carved-out locations, medical operations shall be authorized on a primary basis in the band 1429-1431.5 MHz and on a secondary basis in the bands 1427-1429 MHz and 1431.5-1432 MHz.
(b) Non-medical operations. The use of the band 1427-1432 MHz for non-medical telemetry and telecommand operations (non-medical operations) shall be limited to non-Federal stations.
- (1) Non-medical operations shall be authorized on a secondary basis to the Wireless Medical Telemetry Service (WMTS) in the band 1427-1429.5 MHz and on a primary basis in the band 1429.5-1432 MHz in the United States and its insular areas, except in the carved-out locations.
- (2) In the carved-out locations, non-medical operations shall be authorized on a secondary basis in the band 1429-1431.5 MHz and on a primary basis in the bands 1427-1429 MHz and 1431.5-1432 MHz.

Could not find NG338

SpectrumWiki

Wireless Medical Telemetry Service (WMTS)

The 608-614, 1395-1400, and 1429-1432 MHz bands are used for the Wireless Medical Telemetry Service (WMTS). WMTS devices operate in the land mobile service on a "licensed by rule" basis as one of the growing number of Citizens Band Radio Services.

The FCC defines WMTS as "a private, short distance data communication service for the transmission of patient medical information to a central monitoring location in a hospital or other medical facility. Voice and video communications are prohibited. Waveforms such as electrocardiograms (EKG) are not considered video."

The FCC intends for WMTS to be the modern replacement for conventional medical telemetry systems that operate on an unlicensed basis in FCC Part 15, or licensed and secondary under Part 90 rules. When it created WMTS, the Commission said that it does not anticipate making any more allocations to medical telemetry.

WMTS is unique among the CB Services as it is the first to require frequency coordination by FCC-selected entities. These coordinators record and monitor the locations and frequencies of WMTS equipment for interference control purposes. WMTS is co-primary with the radio astronomy service in this band, and WMTS operations must be coordinated with the National Science Foundation.

WMTS equipment is only permitted in health care facilities, and eligibility to operate the equipment is strictly limited to health care personnel. WMTS cannot legally be used in a moving vehicle, even an ambulance.

The 608-614 MHz spectrum is one of many restricted bands in which the FCC's Part 15 rules permit unlicensed devices to emit only very low level emissions.

(The original version of this entry was based upon text from Wireless Spectrum Finder, by Benn Kobb. Wireless Spectrum Finder is now owned and copyrighted by SpectrumWiki.com.)

Frequency Bands
Band	Use	Service	Table
608 - 614 MHz	WMTS	Land Mobile	-
1395 - 1400 MHz	WMTS	Land Mobile	-
1429 - 1432 MHz	WMTS	Land Mobile	-

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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

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Radio Astronomy (1400-1427 MHz)

This band is one of the most important bands for radio astronomy, since it encompasses a fundamental spectral line of hydrogen, which is by far the most prevalent element in the Universe.

Neutral (non-ionized) hydrogen naturally emits (or absorbs) at the frequency of 1420.4058 MHz due to a "spin flip" transition in energy states. Referred to as the HI line (pronounced "H-one line"), it can be observed throughout the cosmos and is heavily used for probing conditions in our own Galaxy and in other galaxies.

Due to relative motions between us and the cosmic sources being observed, the HI line can be seen at frequencies other than its rest frequency of 1420.4058 MHz. In fact, it is believed that neutral hydrogen can be observed at such great distances (and therefore many billions of years in the past), that its signal would be redshifted to 100 MHz or even below as a result of the expansion of the Universe. The allocated range, 1400 - 1427 MHz, therefore encompasses only a small portion of the frequency range that is needed to observe HI throughout the Universe.

The line is sometimes also referred to as the 21 cm line, referring to its rest wavelength.

HI observations are made at many radio astronomy observatories worldwide.

Frequency Bands
Band	Use	Service	Table
1400 - 1427 MHz	Neutral hydrogen (HI)	Radio Astronomy	-

External Links:

Hydrogen line (Wikipedia)

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Soil Moisture Active Passive (SMAP) Satellite

The Soil Moisture Active Passive (SMAP) satellite is a planned NASA satellite mission to monitor soil moisture around the globe. It is planned for launch in 2014.

As its name implies, the Soil Moisture Active Passive (SMAP) satellite uses active and passive radio systems to measure soil moisture around the globe. The spacecraft is in a sun-syncronous orbit that passes overhead of its target areas around 6 AM and 6 PM, approximately every 3 days at the equator and every 2 days at high latitudes.

SMAP's sensors can determine soil moisture down to a depth of approximately 5-10 cm. The active radar provides approximately 3 km resolution on the ground, using a 6 m antenna and measuring reflections in HH, VV, and HV polarization modes. The radar works in frequency hopping mode to avoid interference to and from aviation radars that operate in the same band. The instantaneous signal from the radar consists of two separate signals each of ~1.4 MHz bandwidth, separated by 5 MHz. It pulses every ~354 microseconds, for a duration of ~10-20 microseconds per pulse. The radar transmit power (not EIRP) is a few hundred watts.

SMAP will operate in a circular orbit of 670 km altitude. The ground footprint of the radar is approximately 1000 km. Resolution of the radar in low-resolution mode is approximately 40 km, and in high-resolution mode the resolution is approximately 3 km.

Soil moisture data can be used for improving numerical weather prediction, including seasonal climate prediction and rainfall prediction.

Like the European SMOS satellite, it is anticipated that SMAP's passive sensor will be subject to illegal RFI in the passive-only 1400-1427 MHz band.

Frequency Bands
Band	Use	Service	Table
1200 - 1300 MHz	SMAP active radar	Earth Exploration-satellite	F
1400 - 1427 MHz	SMAP passive radiometer	Earth Exploration-satellite	F

External Links:

SMAP Web (NASA/JPL)

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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)

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Related Documents, Links, and Multimedia:

Occupancy Measurements (10)

Other (1)

The Very Large Array Radio Telescope

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	1427 MHz	1428.25 MHz	1429.5 MHz
Wavelength	21.0 cm	21.0 cm	21.0 cm
Band designator(s)	UHF; L-band (IEEE)	UHF; L-band (IEEE)	UHF; L-band (IEEE)
Isotropic collecting area	35.1 cm²	35.1 cm²	35.0 cm²
Free space loss (1 m)	35.5 dB	35.5 dB	35.6 dB
Free space loss (1 km)	95.5 dB	95.5 dB	95.6 dB
Free space loss (10 km)	115.5 dB	115.5 dB	115.6 dB
Free space loss (100 km)	135.5 dB	135.5 dB	135.6 dB
Free space loss (1000 km)	155.5 dB	155.5 dB	155.6 dB
Free space loss (35,786 km = GEO orbit)	186.6 dB	186.6 dB	186.6 dB
Free space loss (378,370 km = Moon)	207.1 dB	207.1 dB	207.1 dB