5.233 Additional allocation: in China, the band 174-184 MHz is also allocated to the space research (space-to-Earth) and the space operation (space-to-Earth) services on a primary basis, subject to agreement obtained under No. 9.21. These services shall not cause harmful interference to, or claim protection from, existing or planned broadcasting stations.

5.235 Additional allocation: in Germany, Austria, Belgium, Denmark, Spain, Finland, France, Israel, Italy, Liechtenstein, Malta, Monaco, Norway, the Netherlands, the United Kingdom, Sweden and Switzerland, the band 174 223 MHz is also allocated to the land mobile service on a primary basis. However, the stations of the land mobile service shall not cause harmful interference to, or claim protection from, broadcasting stations, existing or planned, in countries other than those listed in this footnote.

5.237 Additional allocation: in Congo (Rep. of the), Egypt, Eritrea, Ethiopia, Gambia, Guinea, Libya, Mali, Sierra Leone, Somalia and Chad, the band 174-223 MHz is also allocated to the fixed and mobile services on a secondary basis. (WRC 12)

5.238 Additional allocation: in Bangladesh, India, Pakistan and the Philippines, the band 200-216 MHz is also allocated to the aeronautical radionavigation service on a primary basis.

5.240 Additional allocation: in China and India, the band 216-223 MHz is also allocated to the aeronautical radionavigation service on a primary basis and to the radiolocation service on a secondary basis.

5.241 In Region 2, no new stations in the radiolocation service may be authorized in the band 216-225 MHz. Stations authorized prior to 1 January 1990 may continue to operate on a secondary basis.

5.243 Additional allocation: in Somalia, the band 216-225 MHz is also allocated to the aeronautical radionavigation service on a primary basis, subject to not causing harmful interference to existing or planned broadcasting services in other countries.

5.245 Additional allocation: in Japan, the band 222-223 MHz is also allocated to the aeronautical radionavigation service on a primary basis and to the radiolocation service on a secondary basis.

SpectrumWiki

Television Broadcast

Over-the-air television broadcasting in the United States uses the following spectrum. Each TV channel is 6 MHz wide. Digital broadcasting is by the ATSC standard. Some Low Power Television (LPTV), TV translators, and Class A television stations continue to broadcast in analog mode using the NTSC standard, but are mandated to transition to digital by September 1, 2015; however, the FCC has proposed extending this deadline in document FCC 14-151 (available under the related documents section).

VHF TV
54-72 MHz:	Channels 2-4
76-88 MHz:	Channels 5-6
174-216 MHz:	Channels 7-13

UHF TV
470-512 MHz:	Channels 14-20 (may be used for land mobile in major cities; see below)
512-608 MHz:	Channels 21-36
608-614 MHz:	Channel 37 (not used for TV broadcasting)
614-698 MHz:	Channels 38-51

Portions of channels 14-20 (470-512 MHz) are used by the Private Land Mobile Radio Service (PLMRS) in the following metropolitan areas:

Boston MA	channels 14 & 16
Chicago IL	channels 14 & 15
Dallas/Ft. Worth TX	channel 16
Houston TX	channel 17
Los Angeles CA	channels 14, 16 & 20
Miami FL	channel 14
New York NY/NE New Jersey	channels 14-16
Philadelphia PA	channels 19 & 20
Pittsburgh PA	channels 14 & 18
San Francisco-Oakland CA	channels 16 & 17
Washington DC	channels 17 & 18

PLMRS service is allowed by the FCC's rules in Cleveland OH (14 & 15) and Detroit MI (15 & 16), but interference issues with Canada prevent PLMRS from being deployed there.

A useful characteristic of digital (ATSC) signals is the addition of a narrowband pilot tone on the RF carrier. The pilot tone is at a nominal frequency of 309.440559441 kHz above the bottom edge of the channel, although the FCC may require small frequency offsets on a station-by-station basis to avoid interference between pilot tones of co-channel TV stations. Ancillary uses of the pilot tones include, for example, monitoring for sudden enhanced propagation events, such as meteor burst or sporadic E.

Channelized Bands
Band	Channel	Use	Service	Table
54 - 60 MHz	2	Broadcast Television (VHF)	Broadcasting	N
60 - 66 MHz	3	Broadcast Television (VHF)	Broadcasting	N
66 - 72 MHz	4	Broadcast Television (VHF)	Broadcasting	N
76 - 82 MHz	5	Broadcast Television (VHF)	Broadcasting	N
82 - 88 MHz	6	Broadcast Television (VHF)	Broadcasting	N
174 - 180 MHz	7	Broadcast Television (VHF)	Broadcasting	N
180 - 186 MHz	8	Broadcast Television (VHF)	Broadcasting	N
186 - 192 MHz	9	Broadcast Television (VHF)	Broadcasting	N
192 - 198 MHz	10	Broadcast Television (VHF)	Broadcasting	N
198 - 204 MHz	11	Broadcast Television (VHF)	Broadcasting	N
204 - 210 MHz	12	Broadcast Television (VHF)	Broadcasting	N
210 - 216 MHz	13	Broadcast Television (VHF)	Broadcasting	N
470 - 476 MHz	14	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
476 - 482 MHz	15	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
482 - 488 MHz	16	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
488 - 494 MHz	17	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
494 - 500 MHz	18	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
500 - 506 MHz	19	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
506 - 512 MHz	20	Broadcast Television (UHF) (may be used for land mobile in major metro areas)	Broadcasting	N
512 - 518 MHz	21	Broadcast Television (UHF)	Broadcasting	N
518 - 524 MHz	22	Broadcast Television (UHF)	Broadcasting	N
524 - 530 MHz	23	Broadcast Television (UHF)	Broadcasting	N
530 - 536 MHz	24	Broadcast Television (UHF)	Broadcasting	N
536 - 542 MHz	25	Broadcast Television (UHF)	Broadcasting	N
542 - 548 MHz	26	Broadcast Television (UHF)	Broadcasting	N
548 - 554 MHz	27	Broadcast Television (UHF)	Broadcasting	N
554 - 560 MHz	28	Broadcast Television (UHF)	Broadcasting	N
560 - 566 MHz	29	Broadcast Television (UHF)	Broadcasting	N
566 - 572 MHz	30	Broadcast Television (UHF)	Broadcasting	N
572 - 578 MHz	31	Broadcast Television (UHF)	Broadcasting	N
578 - 584 MHz	32	Broadcast Television (UHF)	Broadcasting	N
584 - 590 MHz	33	Broadcast Television (UHF)	Broadcasting	N
590 - 596 MHz	34	Broadcast Television (UHF)	Broadcasting	N
596 - 602 MHz	35	Broadcast Television (UHF)	Broadcasting	N
602 - 608 MHz	36	Broadcast Television (UHF)	Broadcasting	N
614 - 620 MHz	38	Broadcast Television (UHF)	Broadcasting	N
620 - 626 MHz	39	Broadcast Television (UHF)	Broadcasting	N
626 - 632 MHz	40	Broadcast Television (UHF)	Broadcasting	N
632 - 638 MHz	41	Broadcast Television (UHF)	Broadcasting	N
638 - 644 MHz	42	Broadcast Television (UHF)	Broadcasting	N
644 - 650 MHz	43	Broadcast Television (UHF)	Broadcasting	N
650 - 656 MHz	44	Broadcast Television (UHF)	Broadcasting	N
656 - 662 MHz	45	Broadcast Television (UHF)	Broadcasting	N
662 - 668 MHz	46	Broadcast Television (UHF)	Broadcasting	N
668 - 674 MHz	47	Broadcast Television (UHF)	Broadcasting	N
674 - 680 MHz	48	Broadcast Television (UHF)	Broadcasting	N
680 - 686 MHz	49	Broadcast Television (UHF)	Broadcasting	N
686 - 692 MHz	50	Broadcast Television (UHF)	Broadcasting	N
692 - 698 MHz	51	Broadcast Television (UHF)	Broadcasting	N

External Links:

ATSC Digital TV Standard

FCC TV station query

Spectrum Tour: U.S. Digital TV (551 MHz) (Prof. Steve Ellingson)

Display this entry in a page by itself

Edit

Amateur Radio (1.25 m Band)

According to the ITU, "where allocated, this band serves as an alternative to the 144 MHz band for short-range communications."

In the U.S., the ARRL has adopted the following band plan. This plan may apply in other countries as well:

Frequency (MHz): Use
222.0-222.15: Weak-signal modes
222-222.025: Earth-Moon-Earth communications
222.05-222.06: Propagation beacons
222.1: SSB & CW calling frequency
222.1-222.15: Weak-signal CW & SSB
222.15-222.25: Local coordinator's option; weak signal, ACSB, repeater inputs, control
222.25-223.38: FM repeater inputs only
223.4-223.52: FM simplex
223.52-223.64: Digital, packet
223.64-223.7: Links, control
223.71-223.85: Local coordinator's option, FM simplex, packet, repeater outputs
223.85-224.98: Repeater outputs only

Frequency Bands
Band	Use	Service	Table
222 - 225 MHz	Amateur radio 1.25 m band	AM	N

Display this entry in a page by itself

Edit

218-219 MHz Service

According to the FCC (47 CFR 95.803), the 218–219 MHz Service is authorized for system licensees to provide communication service to subscribers in a specific service area. The components of each 218–219 MHz Service system are its administra- tive apparatus, its response transmitter units (RTUs), and one or more cell transmitter stations (CTSs). RTUs may be used in any location within the service area. CTSs provide service from a fixed point, and certain CTSs must be individually licensed as part of a 218– 219 MHz Service system.

218-219 MHz service licenses are generally issued on a geographic basis, covering 727 different Cellular Market Areas (CMAs). Two license blocks are available in each CMA.

CTS and fixed RTU stations are limited to 20 W ERP, and mobile RTU stations are limited to 4 W ERP.

The FCC auction of 218-219 MHz Service licenses was originally scheduled for December, 2010 (Auction 89), but was postponed. As of September 2016, the auction has not been rescheduled.

The 218-219 MHz Service was formerly known as the Interactive Video and Data Service (IVDS).

Frequency Bands
Band	Use	Service	Table
218 - 218.5 MHz	218-219 MHz Service A Block	-	N
218.5 - 219 MHz	218-219 MHz Service B Block	-	N

Display this entry in a page by itself

Edit

FCC Narrowbanding Mandate

The FCC has mandated that all Private Land Mobile Radio (PLMR) and Industrial/Business Radio Pool systems operating in the 150-174 and 421-512 MHz bands must operate using a channel bandwidth of no more than 12.5 kHz, or "a technology that achieves the narrowband equivalent of one channel per 12.5 kHz of channel bandwidth (voice) or 4800 bits per second per 6.25 kHz (data) if the bandwidth for transmissions specified in the modification application is greater than 12.5 kHz."

The deadline for narrowbanding is January 1, 2013. Prior to this date, systems in these bands were allowed up to 25 kHz channel bandwidth.

Narrowbanding of the 470-512 MHz portion ("T-band") has been put on hold by the FCC. Congressional action in the Middle Class Tax Relief and Jobs Creation Act mandated that this sub-band be cleared of all mobile systems in light of the TV band incentive auction and the eventual creation of the nationwide public safety broadband network.

Frequency Bands
Band	Use	Service	Table
150 - 174 MHz	FCC Narrowband Mandate for PLMR and Industrial/Business Radio Pool systems	-	N
421 - 512 MHz	FCC Narrowband Mandate for PLMR and Industrial/Business Radio Pool systems	-	N

External Links:

FCC Narrowbanding Mandate Order

Display this entry in a page by itself

Edit

Low Power Radio Service (LPRS)

According to the FCC:

The Low Power Radio Service (LPRS) is in the 216.0 – 217.0 MHz range. The most common use of LPRS spectrum is short-distance, one-way communications for health care, educational, and law enforcement industries.

Similar services include Part 15 unlicensed devices.

Background

The Low Power Radio Service (LPRS) dates back to 1996 when the FCC redesignated the 216.0-217.0 MHz band from Automated Maritime Telecommunications System (AMTS) use to LPRS.

Licensing

The Low Power Radio Service (LPRS) is licensed by rule, except when an LPRS device is used for AMTS point-to-point network control communications. If an LPRS device is used for AMTS purposes, an AMTS license is required. Licensed by rule means an individual license is not required to operate an LPRS device. You can operate an LPRS device regardless of your age so long as you are not a representative of a foreign government.

The FCC service rules for the Low Power Radio Service (LPRS) are located in 47 C.F.R. Part 95.

Channels

There are 260 Low Power Radio Service (LPRS) channels. LPRS channels can have a bandwidth of 25, 50, or 5 kHz.

When the band is divided into 25 kHz channels, the channels are identified as channels 1-40.

When the band is divided into 50 kHz channels, the channels are identified as channels 41-60.

When the band is divided into 5 kHz channels, the channels are identified as channels 61-260.

Channels 19, 20, 50, and 151-160 are reserved for law enforcement tracking.

Low power AMTS point-to-point network control communications are permitted in the 216.75-217.0 MHz band.

Examples of Low Power Radio Service (LPRS) Uses

1) Auditory assistance communications (including, but not limited to, applications such as assistive listening devices, audio description for the blind, and simultaneous language translation) for persons who:

-Have physical or mental impairment that substantially limits one or more of the major life activities of such individuals;
-Require language translation; or
-May otherwise benefit from auditory assistance communications in educational settings.

2) Health care related communications for the ill.

3) Law enforcement tracking signals (for homing or interrogation) including the tracking of persons or stolen goods under authority or agreement with a law enforcement agency (federal, state, or local) having jurisdiction in the area where the transmitters are placed.

4) AMTS point-to-point network control communications.

Operating a Low Power Radio Service (LPRS) Device

You can operate a Low Power Radio Service (LPRS) device in any place where the FCC regulates radio communications. An LPRS device must be certified by the FCC. A certified LPRS device has an identifying label placed on it by the manufacturer.

None of the LPRS channels are assigned for the exclusive use of any entity. You must cooperate in the selection and use of the channels in order to make the most efficient use of them and to reduce the possibility of interference.

Operating an LPRS device is subject to the condition that no harmful interference is caused to:
-The United States Navy’s SPASUR radio system (the system operates on 216.88 – 217.08 MHz);
-TV reception within the Grade B contour of any TV channel 13 station, or within the 68 dBu predicted contour of any low power TV or TV translator station operating on channel 13.

LPRS transmitters are limited to 100 mW transmit power.

Frequency Bands
Band	Use	Service	Table
216 - 217 MHz	Low Power Radio Service (LPRS)	Mobile	N

External Links:

FCC LPRS Web page

Display this entry in a page by itself

Edit

Automated Maritime Telecommunications System (AMTS)

According to the FCC:

"Automated Maritime Telecommunications System (AMTS) stations are a special type of public coast station. The AMTS service was established in 1981 as an alternative to traditional VHF public coast service, primarily to meet the specialized needs of tugs, barges, and other commercial vessels on inland waterways. AMTS stations, which use 217/219 MHz frequencies, were intended primarily to provide public correspondence service to such vessels, but in an integrated manner not readily available from individual VHF public coast stations. AMTS public coast stations also may provide private radio service under certain circumstances, and have limited authority to provide service to units on land. An AMTS licensee may lease all or part of the spectrum usage rights associated with the license."

AMTS stations are located close in frequency to TV channel 13 (210-216 MHz) and channel 10 (192-198 MHz). According to the FCC:

"Section 80.475(a) of the Commission’s Rules requires an applicant proposing to locate an AMTS station within 169 kilometers (105 miles) of a Channel 13 television station, or within 129 kilometers (80 miles) of a Channel 10 television station, to submit "an engineering study clearly showing the means of avoiding interference with television reception within the Grade B contour.” If there are at least one hundred residences within both the proposed AMTS station’s predicted interference contour and the television station’s Grade B contour, the AMTS applicant must also (1) show that its proposed site is the only suitable location, (2) develop a plan to control any interference its operations cause within the Grade B contour, and (3) agree to make any necessary adjustments to affected television receivers to eliminate such interference. Any AMTS licensee that, despite these precautions, causes interference to television reception within the Grade B contour must cure the problem within 90 days of the time it is notified in writing by the Commission or discontinue operation of the station."

Paired Frequency Bands
Paired Bands	Use	Service	Table
217 - 217.5 MHz	AMTS B Block Coast Transmit	Mobile	N
219 - 219.5 MHz	AMTS B Block Ship Transmit	Mobile	N
217.5 - 218 MHz	AMTS A Block Coast Transmit	Mobile	N
219.5 - 220 MHz	AMTS A Block Ship Transmit	Mobile	N

Display this entry in a page by itself

Edit

Military Mobile-Satellite Communications (NTIA)

Satellites operating in the mobile-satellite service in this band are used by the military services and the Coast Guard. The military mobile-satellite communications networks in the band serve ships at sea, aircraft, land-based forces, and a variety of other U.S. military fixed and mobile terminals used by mobile users. The bands 225-322 MHz and 335.4- 399.9 MHz are the only bands below 7250 MHz available for Federal Government mobile-satellite communications, and the narrowband satellite links are frequently the only reliable means of communications.

The military makes extensive use of the mobile-satellite service operating in this band because the electromagnetic waves can penetrate foliage, inclement weather, and urban terrain including concrete-reinforced buildings. Small antennas can be used at the earth terminals making it easy to transport the stations. There are numerous satellite earth terminals currently in use by the military, many of which are small and portable enough to be carried deep into theaters of operation.

The Federal use of the band for mobile satellites was initiated in 1978 with the Navy's Fleet Satellite Communications System (FLTSATCOM), a constellation of five geostationary satellites operating in the band 235-322 MHz, channelized into the downlinks at 243.855-269.95 MHz and corresponding uplinks in the band 292.85- 317.325 MHz. The Navy began upgrading the FLTSATCOM in the 1990s with the UHF Follow-On (UFO) satellites. The UFO satellites offer increased communications channel capacity over the same frequency spectrum used by the previous FLTSATCOM systems. Each UFO satellite has 39 channels with a total 555 kHz bandwidth. The satellite payload comprises 21 narrowband channels at 5 kHz each and 17 relay channels at 25 kHz.3 These channels are used by the military agencies for tactical communications on land, ships, submarines, and aircraft. The Coast Guard also uses channels on the military satellites on some of their ships.

The Department of Defense (DOD) Defense Satellite Communications System (DSCS-III) series of geostationary satellites operating in the 7- and 8- GHz bands also carry a transponder in this band called the single channel transponder (SCT) that provides communications for emergency action messages to the forces. The Military, Strategic, and Tactical Relay Satellite (MILSTAR) geostationary satellite also has mobile-satellite capability in this band, with a transponder that provides four Air Force Satellite Communications (AFSATCOM IIR) channels and a fleet broadcast channel.

The Navy has launched the next generation mobile satellites, termed the Multiple User Objective System (MUOS) that use the bands 243.525-270.05 MHz and 280-320 MHz. The MUOS is undergoing testing and is not fully operational as of September, 2014. The Navy has awarded contracts for the MUOS, and overall, the MUOS will be $6.4 billion system. The MUOS enables communications to various terminal devices such as handhelds, laptops, and personal communications units. To support legacy systems, the MUOS will use a narrowband system of 64 kbps/channel and below. The MUOS will use wideband-code-division-multiple-access (WCDMA) technology, the same technology as some forms of the third generation (3G) commercial cellphone technology. The capacity is 4 Mbps per antenna beam.

In general, the band 225-328.6 MHz is reserved for military uses by North Atlantic Treaty Organization (NATO), its member nations, and other U.S. allies. The band is harmonized among NATO-member nations for secure communications.

(Information extracted from the NTIA Federal Government Spectrum Use Reports, dated December 1, 2015)

Frequency Bands
Band	Use	Service	Table
225 - 322 MHz	Military mobile-satellite communications	Mobile-satellite	F
335.4 - 399.9 MHz	Military mobile-satellite communications	Mobile-satellite	F

External Links:

FAS Space Policy Project, DSCS III Satellite Description (fas.org)

NTIA Spectrum Use Summary 225.0-328.6 MHz

UHF-MILSATCOM frequencies (RadioReference.com)

Display this entry in a page by itself

Edit

Area Common User System (ACUS) (NTIA)

The military agencies use the band 225-328.6 MHz for tactical and non-tactical land mobile and fixed service point-to-point communications. The most extensive use is by the Army's Area Common User System (ACUS), consisting of both land mobile and fixed communications systems. The mobile version uses mobile subscriber equipment (MSE) that functions like a cellular communications network, capable of providing communications to many users.

The fixed communications part of the ACUS is a high capacity line-of-sight point-to-point radio system. The radio provides voice and data communications over paths up to 70 miles. The system can use various data rates, with the highest being 34 Mbps, and it has a feature that provides a spectrum scan to detect spectrum congestion to identify frequencies to maximize link availability.

In general, the band 225-328.6 MHz is reserved for military uses by North Atlantic Treaty Organization (NATO), its member nations, and other U.S. allies. The band is harmonized among NATO-member nations for secure communications.

(Information extracted from the NTIA Federal Government Spectrum Use Reports, dated December 1, 2015)

Frequency Bands
Band	Use	Service	Table
225 - 328.6 MHz	Military land mobile communications	Mobile	F
225 - 328.6 MHz	Military fixed point-to-point communications	Fixed	F

External Links:

NTIA Spectrum Use Summary 225.0-328.6 MHz

Display this entry in a page by itself

Edit

Federal Maritime Mobile Communications (NTIA)

The Navy, Coast Guard, and NASA use the band 225-328.6 MHz for tactical and non-tactical operations such as ship-to-air-to-ship and ship-to-ship for clear and secure voice communications. The Coast Guard also uses the band for a secure data communications link.

In general, the band 225-328.6 MHz is reserved for military uses by North Atlantic Treaty Organization (NATO), its member nations, and other U.S. allies. The band is harmonized among NATO-member nations for secure communications.

(Information extracted from the NTIA Federal Government Spectrum Use Reports, dated December 1, 2015)

Frequency Bands
Band	Use	Service	Table
225 - 328.6 MHz	Federal Ship-to-Shore and Ship-to-Ship Communications	Mobile	F

External Links:

NTIA Spectrum Use Summary 225.0-328.6 MHz

Display this entry in a page by itself

Edit

Military Aeronautical/ATC Communications and Telemetry (NTIA)

The military agencies, National Guard units, the Coast Guard, and the FAA are the heaviest users of the band 225-328.6 MHz, using the band for critical air-to-ground-to-air communications systems. The military agencies and National Guard units use the band 225-328.6 MHz for various types of aeronautical communications, e.g., for training flights and air-traffic-control functions such as ground control, approach control, enroute aircraft separation, and in-flight refueling services. The Air Force, Army, Navy, and the FAA have thousands of frequency assignments for air-to-ground-to-air communications in the band 225-328.6 MHz. Most of these assignments are to ground stations.

The Coast Guard uses the band on its maritime search-and-rescue aircraft and other aircraft for air-to-ground-to-air communications. The military agencies, National Guard units, and the FAA make extensive use of the band 225-328.6 MHz which alleviates possible impact of the national airspace civilian air-to-ground-to-air communications operating in the bands within 117.975-137 MHz. Thus, the Federal use of the band 225-328.6 MHz for aeronautical communications plays an important part in national defense and security, and to control the nation's airspace.

The band 225-328.6 MHz is also used for essential communications by a number of other agencies such as NASA, DOE, and DOC. NASA uses the band for aircraft communications, and for International Space Station (ISS) communications during Extravehicular Activity (EVA); and DOC uses the band on National Oceanographic and Atmospheric Administration (NOAA) hurricane-hunter aircraft, and on ground stations to communicate with other hurricane-hunter aircraft.

The military agencies use the band 225-328.6 MHz for a major tactical communications system to provide anti-jam, secure, frequency-hopping radio communications for tactical air-to-air and air-to-ground-to-air communications. The uses include coordination and vectoring of aircraft to targets, and large scale training exercises.

For example, the major radio communications systems are deployed on all rotary wing aircraft, and are used by all operational aviation units, air traffic services, and units. The radio communications system enables interoperability communications among Air Force, Navy, Army, and NATO units.

The Navy makes extensive use of the band for aeronautical telemetry, and DOE also uses the band for this purpose. The Navy uses the band for flight testing of military aircraft. The military agencies also use this band for telemetry systems for rocket testing.

In generall, the band 225-328.6 MHz is reserved for military uses by North Atlantic Treaty Organization (NATO), its member nations, and other U.S. allies. The band is harmonized among NATO-member nations for secure communications.

(Information extracted from the NTIA Federal Government Spectrum Use Reports, dated December 1, 2015)

Frequency Bands
Band	Use	Service	Table
225 - 328.6 MHz	Military aeronautical communications and telemetry	Mobile	F

External Links:

NTIA Spectrum Use Summary 225.0-328.6 MHz

Display this entry in a page by itself

Edit

Positive Train Control

According to the Federal Railroad Administration:

"In 2008, Congress required Class I Railroad mainlines handling poisonous-inhalation-hazard materials and any railroad main lines with regularly scheduled intercity and commuter rail passenger service to fully implement Positive Train Control by December 31, 2015. PTC uses communication-based/processor-based train control technology that provides a system capable of reliably and functionally preventing train-to-train collisions, overspeed derailments, incursions into established work zone limits, and the movement of a train through a main line switch in the wrong position.

"In late 2015, Congress extended the deadline by at least three years to December 31, 2018, with the possibility for two additional years if certain requirements are met. The new legislation, the PTC Enforcement and Implementation Act, required that railroads submit a revised PTC Implementation Plan (PTCIP) by January 26, 2016, outlining when and how the railroad would have a system fully installed and activated."

There are no formally-adopted standard frequency bands or designated frequencies for PTC, although frequencies in the ~220 MHz range are becoming the de facto standard. PTC may make use of channels belonging to various services spanning the 217-222 MHz range, including frequencies allotted for the 218-219 MHz Service (formerly the Interactive Video and Data Service (IVDS)) and the Automated Maritime Telecommunications System (AMTS). In fact, the challenge of obtaining sufficient spectrum is one of the reasons cited for delayed implementation of PTC.

Frequency Bands
Band	Use	Service	Table
217 - 222 MHz	Positive Train Control (PTC)	-	N

External Links:

Positive Train Control frequencies (RadioReference.com)

Positive Train Control (Federal Railroad Administration presentation)

Agreement between U.S. and Canada on Sharing Portions of 220-222 MHz for Positive Train Control

Display this entry in a page by itself

Edit

Military Battle Simulation Systems (NTIA)

The military agencies use the band for research, development, testing, and evaluation of various types of communications and sensing systems. The military agencies operate training center instrumentation systems in this band for data links connecting battle simulation systems on participants' platforms (airborne, shipborne, or surface) to central processing facilities.

In general, the band 225-328.6 MHz is reserved for military uses by North Atlantic Treaty Organization (NATO), its member nations, and other U.S. allies. The band is harmonized among NATO-member nations for secure communications.

(Information extracted from the NTIA Federal Government Spectrum Use Reports, dated December 1, 2015)

Frequency Bands
Band	Use	Service	Table
225 - 328.6 MHz	Military battle simulation systems	Mobile	F

External Links:

NTIA Spectrum Use Summary 225.0-328.6 MHz

Display this entry in a page by itself

Edit

TV White Space Devices

TV white space devices are unlicensed intentional radiators that operate on available TV channels in the broadcast television frequency bands. Channel availability is determined from geospatial information and a TV bands database.

White space devices in the U.S. are governed by Part 15(H) of the FCC's rules. They operate on available TV channels in the broadcast television frequency bands, the 600 MHz band (including the guard bands and duplex gap), and in 608-614 MHz (channel 37).

TV white spaces has not been a commercial success and very few devices are in operation.

Frequency Bands
Band	Use	Service	Table
54 - 72 MHz	Restricted to mobile/fixed white space devices that communicate with other fixed/mobile white space devices	-	N
76 - 88 MHz	Restricted to mobile/fixed white space devices that communicate with other fixed/mobile white space devices	-	N
174 - 216 MHz	Restricted to mobile/fixed white space devices that communicate with other fixed/mobile white space devices	-	N
470 - 614 MHz	Fixed and personal/portable white space devices	-	N
617 - 652 MHz	Fixed and personal/portable white space devices in areas where 600 MHz licensees are not operating	-	N
657 - 663 MHz	Fixed and personal/portable white space devices in the 600 MHz duplex gap	-	N
663 - 698 MHz	Fixed and personal/portable white space devices in areas where 600 MHz licensees are not operating	-	N

External Links:

FCC White Space Database Administration

RED Technologies White Space Database

47 CFR 15H (FCC rules for TV White Space Devices)

Display this entry in a page by itself

Edit

Add New...

Related Documents, Links, and Multimedia:

FCC Proceeding (3)

FCC Report and Order on TV Channel Sharing Arrangements (FCC 12-45)

FCC Rules for Low Power, Translator, and Class A Television Stations Digital Transition (FCC 11-110)

To ensure a timely and successful completion to the low power television digital transition, we take the following steps:

(1) adopt a hard deadline of September 1, 2015 for the termination of all analog low power television facilities;

(2) establish rules permitting those stations needing additional time to complete their digital transition to obtain a “last minute” extension;

(3) require existing analog and digital low power television stations in the 700 MHz band (channels 52-69) to submit displacement applications by September 1, 2011, and to cease operations in the 700 MHz band by December 31, 2011;

(4) increase the power limits for VHF low power television channels to 3 kilowatts (the current analog power limit);

(5) delegate to the Media Bureau the authority to establish timeframes and procedures for stations that have not already converted to notify the Commission of their conversion plans;

(6) widen the class of low power television broadcasters subject to the Commission’s ancillary and supplementary fee rules;

(7) modify the Commission’s minor change rule so that it covers a proposed change in a low power television station’s transmitter site of up to 30 miles (48 kilometers) from the reference coordinates of the station’s transmitting antenna;

(8) revise the vertical antenna patterns used in the prediction methodology for the low power television services; and

(9) allow low power television stations to use the emission mask used by full power television stations.

Frequencies/Bands

54 - 72 MHz

76 - 88 MHz

174 - 216 MHz

470 - 608 MHz

614 - 806 MHz

Services

Broadcasting

Document type and status: FCC proceeding (Current)
Document date or date of hyperlink query: May 01, 2012
Fcc Docket(s): MB 03-185

FCC Rules for Low Power, Translator, and Class A Television Stations Digital Transition (FCC 11-110)

Edit...

FCC Third NPRM on Digital LPTV and Translator Stations

In this Third Notice of Proposed Rulemaking (“Third Notice”), we seek comment on a number of issues involving low power television (“LPTV”) and TV translator stations (referred to collectively as “LPTV and TV translator stations”). These stations are a source of diverse and local programming for viewers, especially in rural and remote locations. Through this proceeding, we seek comment on measures to facilitate the final conversion of LPTV and TV translator stations to digital service and consider additional means to mitigate the potential impact of the incentive auction and the repacking process on LPTV and TV translator stations to help preserve the important services they provide.

Frequencies/Bands

54 - 72 MHz

76 - 88 MHz

174 - 216 MHz

470 - 608 MHz

614 - 698 MHz

Services

Broadcasting

Document type and status: FCC proceeding (Current)
Document date or date of hyperlink query: January 12, 2015
Fcc Docket(s): MB 03-185 GN 12-268 ET 14-175

FCC Third NPRM on Digital LPTV and Translator Stations

Edit...

Occupancy Measurements (10)

Band Plan (3)

Legislation (1)

Other (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	174 MHz	199.5 MHz	225 MHz
Wavelength	1.7 m	1.5 m	1.3 m
Band designator(s)	VHF	VHF	VHF
Isotropic collecting area	2,362.3 cm²	1,797.0 cm²	1,412.8 cm²
Free space loss (1 m)	17.3 dB	18.4 dB	19.4 dB
Free space loss (1 km)	77.3 dB	78.4 dB	79.4 dB
Free space loss (10 km)	97.3 dB	98.4 dB	99.4 dB
Free space loss (100 km)	117.3 dB	118.4 dB	119.4 dB
Free space loss (1000 km)	137.3 dB	138.4 dB	139.4 dB
Free space loss (35,786 km = GEO orbit)	168.3 dB	169.5 dB	170.5 dB
Free space loss (378,370 km = Moon)	188.8 dB	190.0 dB	191.0 dB