Allocations

 
U.S. Non-Federal-Government Allocations
406.1 - 410 MHz
RADIO ASTRONOMY US74


U.S. Federal Government Allocations
406.1 - 410 MHz
FIXED
MOBILE
RADIO ASTRONOMY US74


ITU Region 1 Allocations
406.1 - 410 MHz
FIXED
MOBILE except aeronautical mobile
RADIO ASTRONOMY


ITU Region 2 Allocations
406.1 - 410 MHz
FIXED
MOBILE except aeronautical mobile
RADIO ASTRONOMY


ITU Region 3 Allocations
406.1 - 410 MHz
FIXED
MOBILE except aeronautical mobile
RADIO ASTRONOMY


SpectrumWiki

Band Uses (406.1 - 410 MHz)


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)

5.265   In the frequency band 403-410 MHz, Resolution 205 (Rev.WRC 19) applies. (WRC 19)

US13   The following center frequencies, each with a channel bandwidth not greater than 12.5 kHz, are available for assignment to non-Federal fixed stations for the specific purpose of transmitting hydrological and meteorological data in cooperation with Federal agencies, subject to the condition that harmful interference will not be caused to Federal stations:

Hydro Channels (MHz)
169.4250170.2625171.1000406.1250
169.4375170.2750171.1125406.1750
169.4500170.2875171.1250412.6625
169.4625170.3000171.8250412.6750
169.4750170.3125171.8375412.6875
169.4875170.3250171.8500412.7125
169.5000171.0250171.8625412.7250
169.5125171.0375171.8750412.7375
169.5250171.0500171.8875412.7625
170.2250171.0625171.9000412.7750
170.2375171.0750171.9125415.1250
170.2500171.0875171.9250415.1750

    New assignments on the frequencies 406.125 MHz and 406.175 MHz are to be primarily for paired operations with the frequencies 415.125 MHz and 415.175 MHz, respectively.

US55   In the bands 162.0375-173.2 MHz and 406.1-420 MHz, the FCC may authorize public safety applicants to use the 40 Federal Interoperability Channels that are designated for joint Federal/non-Federal operations for law enforcement, public safety, emergency response and disaster response in Section 4.3.16 of the NTIA Manual, subject to the condition that that these non-Federal mobile (including portable) interoperability communications shall conform to the national plans specified therein, and in particular, shall not cause harmful interference to Federal stations. The procedure for authorizing such use is set forth in 47 CFR 90.25.

US74   In the bands 25.55-25.67, 73-74.6, 406.1-410, 608-614, 1400-1427, 1660.5-1670, 2690-2700, and 4990-5000 MHz, and in the bands 10.68-10.7, 15.35-15.4, 23.6-24.0, 31.3-31.5, 86-92, 100-102, 109.5-111.8, 114.25-116, 148.5-151.5, 164-167, 200-209, and 250-252 GHz, the radio astronomy service shall be protected from unwanted emissions only to the extent that such radiation exceeds the level which would be present if the offending station were operating in compliance with the technical standards or criteria applicable to the service in which it operates. Radio astronomy observations in these bands are performed at the locations listed in US385.

US117   In the band 406.1-410 MHz, the following provisions shall apply:

    (a) Stations in the fixed and mobile services are limited to a transmitter output power of 125 watts, and new authorizations for stations, other than mobile stations, are subject to prior coordination by the applicant in the following areas:

    (1) Within Puerto Rico and the U.S. Virgin Islands, contact Spectrum Manager, Arecibo Observatory, HC3 Box 53995, Arecibo, PR 00612. Phone: 787-878-2612, Fax: 787-878-1861, E-mail: prcz@naic.edu.

    (2) Within 350 km of the Very Large Array (34° 04' 44" N, 107° 37' 06" W), contact Spectrum Manager, National Radio Astronomy Observatory, P.O. Box O, 1003 Lopezville Road, Socorro, NM 87801. Phone: 505-835-7000, Fax: 505-835-7027, E-mail: nrao-rfi@nrao.edu.

    (3) Within 10 km of the Table Mountain Observatory (40° 08' 02" N, 105° 14' 40" W) and for operations only within the sub-band 407-409 MHz, contact Radio Frequency Manager, Department of Commerce, 325 Broadway, Boulder, CO 80305. Phone: 303-497-4619, Fax: 303-497-6982, E-mail: frequencymanager@its.bldrdoc.gov.

    (b) Non-Federal use is limited to the radio astronomy service and as provided by footnote US13.

G5   In the bands 162.0125-173.2, 173.4-174, 406.1-410 and 410-420 MHz, use by the military services is limited by the provisions specified in the channeling plans shown in Sections 4.3.7 and 4.3.9 of the NTIA Manual.

G6   Military tactical fixed and mobile operations may be conducted nationally on a secondary basis: (a) To the meteorological aids service in the band 403-406 MHz; and (b) To the radio astronomy service in the band 406.1-410 MHz. Such fixed and mobile operations are subject to local coordination to ensure that harmful interference will not be caused to the services to which the bands are allocated.


SpectrumWiki

 
Emergency Position Indicating Radiobeacon (EPIRB); Emergency Locator Transmitter (ELT); Personal Locating Beacon (PLB)
3GPP 4G/5G Bands
IEEE 802.15.4 HRP UWB




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Occupancy Measurements (10)




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 406.1 MHz 408.05 MHz 410 MHz
Wavelength 73.8 cm 73.5 cm 73.1 cm
Band designator(s) UHF UHF UHF
Isotropic collecting area 433.7 cm2 429.5 cm2 425.5 cm2
Free space loss (1 m) 24.6 dB 24.7 dB 24.7 dB
Free space loss (1 km) 84.6 dB 84.7 dB 84.7 dB
Free space loss (10 km) 104.6 dB 104.7 dB 104.7 dB
Free space loss (100 km) 124.6 dB 124.7 dB 124.7 dB
Free space loss (1000 km) 144.6 dB 144.7 dB 144.7 dB
Free space loss
(35,786 km = GEO orbit)
175.7 dB 175.7 dB 175.8 dB
Free space loss (378,370 km = Moon) 196.2 dB 196.2 dB 196.3 dB
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