5.268 Use of the frequency band 410-420 MHz by the space research service is limited to space-to-space communication links with an orbiting, manned space vehicle. The power flux-density at the surface of the Earth produced by emissions from transmitting stations of the space research service (space-to-space) in the frequency band 410-420 MHz shall not exceed −153 dB(W/m²) for 0° ≤ δ ≤ 5°, −153 + 0.077 (δ − 5) dB(W/m²) for 5° ≤ δ ≤ 70° and −148 dB(W/m²) for 70° ≤ δ ≤ 90°, where δ is the angle of arrival of the radio-frequency wave and the reference bandwidth is 4 kHz. In this frequency band, stations of the space research service (space-to-space) shall not claim protection from, nor constrain the use and development of, stations of the fixed and mobile services. No. 4.10 does not apply. (WRC 15)

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)
169.4250	170.2625	171.1000	406.1250
169.4375	170.2750	171.1125	406.1750
169.4500	170.2875	171.1250	412.6625
169.4625	170.3000	171.8250	412.6750
169.4750	170.3125	171.8375	412.6875
169.4875	170.3250	171.8500	412.7125
169.5000	171.0250	171.8625	412.7250
169.5125	171.0375	171.8750	412.7375
169.5250	171.0500	171.8875	412.7625
170.2250	171.0625	171.9000	412.7750
170.2375	171.0750	171.9125	415.1250
170.2500	171.0875	171.9250	415.1750

    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.

US64   (a) In the band 401-406 MHz, the mobile, except aeronautical mobile, service is allocated on a secondary basis and is limited to, with the exception of military tactical mobile stations, Medical Device Radiocommunication Service (MedRadio) operations. MedRadio stations are authorized by rule on the condition that harmful interference is not caused to stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services, and that MedRadio stations accept interference from stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services.

(b) The bands 413-419 MHz, 426-432 MHz, 438-444 MHz, and 451-457 MHz are also allocated on a secondary basis to the mobile, except aeronautical mobile, service. The use of this allocation is limited to MedRadio operations. MedRadio stations are authorized by rule and operate in accordance with 47 CFR part 95.

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.

SpectrumWiki

Amateur Radio (70 cm Band)

All or part of this band is allocated worldwide on a seconday basis to the amateur and amateur-satellite services. The band is often referred to as either the 440 band or the 70 cm band.

In the United States, the entire range 420 - 450 MHz is allocated for amateur radio. According to the ARRL, the following band plan is used:

Frequency (MHz):Use
420-426: ATV repeater or simplex with 421.25 MHz video carrier (NTSC)
426-432: ATV simplex with 427.25 MHz video carrier (NTSC)
432-432.07: Earth-Moon-Earth
432.07-432.10: Weak-signal CW
432.1: 70-cm calling frequency
432.1-432.3: Mixed-mode and weak-signal work
432.3-432.4: Propagation beacons
432.4-433.0: Mixed-mode and weak-signal work
433-435: Auxiliary/repeater links
435-438: Satellite only (internationally)
438-444: ATV repeater input (439.25 MHz video carrier)
442-445: Repeater inputs and outputs (local option)
445-447: Shared auxiliary & control links; repeaters and simplex
446.0: National simplex FM frequency
447-450: Repeater inputs and outputs (local option)

Frequency Bands
Band	Use	Service	Table
420 - 450 MHz	Amateur radio 440 band (aka 70 cm band)	Amateur	N

Display this entry in a page by itself

Edit

3GPP 4G/5G Bands

3GPP is the global standards organization for 4G LTE and 5G NR radio technologies. It designates multiple bands throughout the radio spectrum for 4G/5G use. Different combinations of bands are used in different countries and regions.

Bands designated with a "B" are standardized for 4G LTE; bands designated with an "N" are 5G. Some bands are designated for both.

Frequency Division Duplex (FDD) uses paired bands, where one band is used for downlink (DL) transmissions from the base station to the user terminal (i.e., handset), and the other band is used for uplink (UL) transmissions from the user terminal to the base station.

Time Division Duplex (TDD) uses the same band for both uplink and downlink, which share the same frequency in time over ~millisecond timescales.

Paired Frequency Bands
Paired Bands	Use	Service	Table
410 - 415 MHz	3GPP 4G LTE FDD band B87 Uplink (EU PPDR PMR/PMAR)	Mobile	-
420 - 425 MHz	3GPP 4G LTE FDD band B87 Downlink (EU PPDR PMR/PMAR)	Mobile	-
412 - 417 MHz	3GPP 4G LTE FDD band B88 Uplink (EU PPDR PMR/PMAR)	Mobile	-
422 - 427 MHz	3GPP 4G LTE FDD band B88 Downlink (EU PPDR PMR/PMAR)	Mobile	-

Display this entry in a page by itself

Edit

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

Display this entry in a page by itself

Edit

PAVE PAWS

PAVE PAWS is a high-power phased array radar operated by the U.S. military to detect intercontinental ballistic missiles. There are presently (2013) three operating PAVE PAWS sites at Clear, AK, Cape Cod, MA, and Beale AFB, CA. The PAVE PAWS radar is also known by its government designator, AN/FPS-115.

According to the spec sheet at the fas.org Web site, PAVE PAWS has a peak/average transmit power of 582/146 kW, antenna gain of 38 dBi, and an operational range of 3,000 nm (about 5500 km).

PAVE PAWS radars are also capable of detecting echoes off of Earth-orbiting space debris.

Frequency Bands
Band	Use	Service	Table
420 - 450 MHz	PAVE PAWS radar	Radiolocation	F

External Links:

AN/FPS-115 (fas.org)

PAVE PAWS (Wikipedia)

Display this entry in a page by itself

Edit

ReconRobotics Surveillance Robot Waiver

Under a waiver granted to ReconRobotics, Inc., the company's products can use the 430-436, 436-442, and 442-448 MHz segments for analog video and audio transmission. Units must be licensed under Part 90 of the FCC rules. Eligibility is limited to state and local police and firefighters eligible for licensing under Section 90.20(a)(1), and security personnel in critical infrastructure industries.

Frequency Bands
Band	Use	Service	Table
420 - 450 MHz	ReconRobotics surveillance robot	-	-

External Links:

ReconRobotics waiver order

Display this entry in a page by itself

Edit

Medical Micropower Networks (MMNs) in 413-457 MHz

Add New...

Related Documents, Links, and Multimedia:

Occupancy Measurements (10)

Band Plan (2)

Other (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	410 MHz	415 MHz	420 MHz
Wavelength	73.1 cm	72.2 cm	71.4 cm
Band designator(s)	UHF	UHF	UHF
Isotropic collecting area	425.5 cm²	415.3 cm²	405.4 cm²
Free space loss (1 m)	24.7 dB	24.8 dB	24.9 dB
Free space loss (1 km)	84.7 dB	84.8 dB	84.9 dB
Free space loss (10 km)	104.7 dB	104.8 dB	104.9 dB
Free space loss (100 km)	124.7 dB	124.8 dB	124.9 dB
Free space loss (1000 km)	144.7 dB	144.8 dB	144.9 dB
Free space loss (35,786 km = GEO orbit)	175.8 dB	175.9 dB	176.0 dB
Free space loss (378,370 km = Moon)	196.3 dB	196.4 dB	196.5 dB