(a) The frequencies authorized pursuant to 47 CFR 90.264 (Disaster Communications) and 47 CFR 90.266 (Long Distance Communications) are listed in columns 1-2 and columns 3-5, respectively. All stations are restricted to emission designator 2K80J3E, upper sideband transmissions, a maximum transmitter output power of 1 kW PEP, and to the class of station(s) listed in the column heading (i.e., fixed (FX) for all frequencies; base and mobile (FB and ML) for the frequencies in column 1 and 3; itinerant FX for the frequencies in columns 4-5).
(b) Use, Geographic, and Time Restrictions. Letter(s) to the right of a frequency indicate that the frequency is available only for the following purpose(s):
- -A or I: Alternate channel or Interstate coordination.
- -C, E, M, or W: For stations located in the Conterminous U.S., East of 108° West Longitude (WL), West of the Mississippi River, or West of 90° WL.
- -D or N: From two hours after local sunrise until two hours before local sunset (i.e., Day only operations) or from two hours prior to local sunset until two hours after local sunrise (i.e., Night only operations).

Preferred Carrier Frequencies (kHz)
Disaster Communications		Long Distance Communications
FX, FB, ML	FX	FX, FB, ML	FX (including itinerant)
2326 … I	5135 … A	2289	5046.6 … E	7480.1
2411	5140 … A, I	2292	5052.6 … E	7483.1
2414	5192 … I	2395	5055.6 … E	7486.1 … E
2419	5195 … I	2398	5061.6 … W	7549.1 … D
2422	7477 … A	3170	5067.6	7552.1
2439	7480 … A	4538.6 … N	5074.6 … E	7555.1 … W
2463	7802 … D	4548.6 … N	5099.1	7558.1 … W
2466	7805 … I	4575	5102.1	7559.1 … W
2471	7932	4610.5	5313.6	7562.1 … W
2474	7935 … C, D	4613.5	6800.1 … N	7697.1
2487		4634.5	6803.1
2511		4637.5	6806.1 … W
2535		4647	6855.1 … N, M
2569			6858.1 … N
2587			6861.1 … W
2801			6885.1 … N
2804 … A			6888.1 … N
2812

NOTE: To determine the assigned frequency, add 1.4 kHz to the carrier frequency. Other emission designators may be authorized within the 2.8 kHz maximum necessary bandwidth pursuant to 47 CFR 90.264 and 90.266.

Could not find US23

US212 In, or within 92.6 km (50 nautical miles) of, the State of Alaska, the carrier frequency 5167.5 kHz (assigned frequency 5168.9 kHz) is designated for emergency communications. This frequency may also be used in the Alaska-Private Fixed Service for calling and listening, but only for establishing communications before switching to another frequency. The maximum power is limited to 150 watts peak envelope power (PEP).

US340 The band 2-30 MHz is available on a non-interference basis to Federal and non-Federal maritime and aeronautical stations for the purposes of measuring the quality of reception on radio channels. See 47 CFR 87.149 for the list of protected frequencies and bands within this frequency range. Actual communications shall be limited to those frequencies specifically allocated to the maritime mobile and aeronautical mobile services.

SpectrumWiki

Shortwave Broadcasting

Various bands throughout the HF (and, technically, the MF) spectrum are used for what is commonly referred to as shortwave broadcasting. Most broadcasts use AM modulation, which can be received on inexpensive shortwave receivers. Within these bands, shortwave broadcasters use channels spaced every 5 kHz. Different broadcasters may use the same channel at different times, and schedules of shortwave broadcasts (which are coordinated through the International Telecommunication Union) change on a regular basis. Most shortwave broadcasts also use very high power, as much as 500,000 W, using very large antenna arrays.

Because many broadcasts are sent through relay stations, the identity of the broadcaster does not necessarily tell you where the signal is coming from. For example, Radio Moscow is retransmitted from a relay station in Cuba, to provide a strong signal into North, Central, and South America.

Most shortwave bands are referred to by their approximate wavelength. For example, the 9400-9900 kHz band is referred to as the "31 meter band," because the wavelength is approximately 31 m.

The Website Short-Wave.info (linked below) can be used to identify shortwave stations broadcasting on specific frequencies at specific times, in a specified language.

Frequency Bands
Band	Use	Service	Table
2300 - 2495 kHz	120 m tropical (regional) band	Broadcasting	-
3200 - 3400 kHz	90 m tropical band	Broadcasting	-
3900 - 4000 kHz	75 m band (shared with North American 80 m amateur radio band)	Broadcasting	-
4750 - 5060 kHz	60 m band	Broadcasting	-
5900 - 6200 kHz	49 m band	Broadcasting	-
7200 - 7450 kHz	41 m band (shared with amateur radio 40 m band)	Broadcasting	-
9400 - 9900 kHz	31 m band (most heavily used shortwave broadcasting band)	Broadcasting	-
11600 - 12100 kHz	25 m band	Broadcasting	-
13570 - 13870 kHz	22 m band (heavily used in Europe/Asia)	Broadcasting	-
15100 - 15800 kHz	19 m band	Broadcasting	-
17480 - 17900 kHz	16 m band	Broadcasting	-
18900 - 19020 kHz	15 m band (lightly used)	Broadcasting	-
21450 - 21850 kHz	13 m band	Broadcasting	-
25600 - 26100 kHz	11 m band (may be used for local digital shortwave broadcasting)	Broadcasting	-

External Links:

Shortwave Bands (Wikipedia)

Short-Wave.info

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Ocean Radar (WRC-2012)

The International Telecommunication Union (ITU), charged by the United Nations with coordinating global radio spectrum use, came to an agreement in February 2012 that will foster improvements in ocean radar technology, which may eventually allow near real-time detection and tracking of tsunamis and prediction of the likely paths of oil spills, ocean debris and persons lost at sea.

Global interest in ocean radars increased dramatically in recent years due to events such as the Gulf oil spill and the massive loss of life caused by the Indonesian and Japanese tsunamis. February's action by the ITU's 2012 World Radiocommunication Conference (WRC) provided specific radio frequency bands for ocean radars, which until now operated only on an informal basis and were subject to immediate shut-down if they caused interference with other radio systems.

Ocean radars are small radio systems typically installed on beaches and use radio signals to map ocean currents to distances as great as 100 miles. Users typically employ them for science, including the study of global ocean currents and their role in weather and climate change.

With further technical developments, including a reduction in the time between taking radar measurements and constructing maps of ocean currents, ocean radars could be used to alert authorities to the existence of tsunamis resulting from earthquakes and follow their path in near real time, allowing better warnings of impending dangers. The radars may also be able to predict the likely path of persons or vessels lost at sea and to predict the evolution of debris fields and oil spills after shipwrecks or oil rig disasters.

"The WRC's decision to identify dedicated ocean radar bands will help speed up technological development of these radars," said Andrew Clegg, a radio spectrum manager with the U.S. National Science Foundation (NSF), who chaired the international drafting group at the WRC that developed the ocean radar spectrum solution. "Many countries, particularly those recently devastated by ocean disasters, were particularly interested in reaching a global agreement for the use of ocean radars."

Frequency Bands
Band	Use	Service	Table
4438 - 4488 kHz	Ocean radars (primary in Region 2; secondary in Regions 1 & 3)	Radiolocation	-
5250 - 5275 kHz	Ocean radars (primary in Region 2; secondary in Regions 1 & 3)	Radiolocation	-
9305 - 9355 kHz	Ocean radars (secondary in Regions 1 & 3; no allocation in Region 2)	Radiolocation	-
13450 - 13550 kHz	Ocean radars (secondary in all ITU Regions)	Radiolocation	-
16100 - 16200 kHz	Ocean radars (primary in Region 2; secondary in Regions 1 & 3)	Radiolocation	-
24450 - 24650 kHz	Ocean radars (secondary in Regions 1 & 3; 24450-24600 primary in Region 2)	Radiolocation	-
26200 - 26420 kHz	Ocean radars (primary in Region 2; 26200-26350 secondary in Regions 2 & 3)	Radiolocation	-
39 - 39.5 MHz	Ocean radars (secondary in Region 1)	Radiolocation	-
39.5 - 40 MHz	Ocean radars (primary in Region 3)	Radiolocation	-
41.015 - 41.665 MHz	Ocean radars (primary in U.S. and Rep. of Korea)	Radiolocation	-
43.35 - 44 MHz	Ocean radars (primary in U.S. and Rep. of Korea)	Radiolocation	-

External Links:

CODAR Ocean Sensors

Associated Files:

An ocean radar at Refugio State Beach, California. The Interdisciplinary Oceanography Group at the University of California Santa Barbara operates the radar, which is sponsored in part by the National Science Foundation.

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Amateur Radio 60 m Band

The U.S. allows amateur radio operations on five channels in the 60 m band, for Extra, Advanced, and General class operators only. Power is limited to 100 W ERP (i.e., 100 W into a resonant dipole antenna).

A proposal for the 2015 World Radiocommunication Conference addreses the possibility of a 60 m amateur radio allocation beyond just the United States, in some portion of 5250-5450 kHz.

Voice operations in USB mode are permitted on the following five channels. Carrier or "dial" frequency is specified in the first column; the center of the 2.8 kHz wide voice emissions must be centered 1.5 kHz above these frequencies, at the frequency in the second column:

Carrier/dial frequency (kHz)	Center of emissions (kHz)
5330.5	5332
5346.5	5348
5357	5358.5
5371.5	5373
5403.5	5405

Digital operations including CW, RTTY, PSK31, and PACTOR III are allowed, and their emissions must be centered on the frequencies in the second column above. Only one signal is allowed on each channel at a time.

Frequencies
Frequency	Bandwidth	Use	Service	Table
5332 kHz	2.8 kHz	Amateur Radio 60 m channel 1	AM	N
5348 kHz	2.8 kHz	Amateur Radio 60 m channel 2	AM	N
5358.5 kHz	2.8 kHz	Amateur Radio 60 m channel 3	AM	N
5373 kHz	2.8 kHz	Amateur Radio 60 m channel 4	AM	N
5405 kHz	2.8 kHz	Amateur Radio 60 m channel 5	AM	N

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Access Broadband over Power Line (Access BPL)

According to the FCC's definition, Access BPL is "a carrier current system installed and operated on an electric utility service as an unintentional radiator that sends radio frequency energy on frequencies between 1.705 MHz and 80 MHz over medium voltage lines or over low voltage lines to provide broadband communications and is located on the supply side of the utility service’s points of interconnection with customer premises. Access BPL does not include power line carrier systems as defined in § 15.3(t) or In-House BPL as defined in § 15.3(gg)."

Low voltage lines are defined as lines carrying, for example, 240/120 volts from a distribution transformer to a customer's premises. Medium voltage lines carry between 1,000 and 40,000 volts from a power substation to neighborhoods, and may be overhead or underground.

Access BPL is an unlicensed service operated under Subpart G of Part 15 of the FCC's rules. Radiated emission limits from medium voltage lines in the 1.705-30 MHz range must not exceed the limits in 47 CFR 15.209, and those from 30-80 MHz must not exceed the limits in 15.109(b). Systems that operate on low voltage lines must comply with 15.109(a) limits across the entire 1.705-80 MHz range.

When Access BPL systems must use notch filters to protect licensed services, the notch must be at least 25 dB below applicable Part 15 limits in the 1.705-30 MHz band, and at least 10 dB below the limits in the 30-80 MHz band.

There are 12 sub-bands in which Access BPL systems are not allowed to operate anywhere to protect aeronautical (land) stations and aircraft receivers. Those excluded bands are listed in 15.615(f), and are excluded in the list of Access BPL bands in this entry.

Access BPL systems are not allowed to operate within the sub-band 2173.5-2190.5 kHz within 1 km of coast station facilities listed in 47 CFR 15.615(f)(2)(i), to protect the internationally-recognized standard maritime calling frequency of 2182 kHz.

No Access BPL emissions are allowed in the 73.0-74.6 MHz radio astronomy band on overhead medium voltage lines within 65 km of the Very Large Array radio telescope in New Mexico (34 04 43.5N, 107 37 03.82W), or within 47 km of the VLA on underground power lines or overhead low voltage lines.

Access BPL operators must consult at least 30 days in advance when deploying systems near various FCC field offices, aeronautical and maritime stations, radar systems, radio astronomy stations, and research areas. Details are in 47 CFR 15.615(f)(3).

Frequency Bands
Band	Use	Service	Table
1705 - 2850 kHz	Access BPL	-	-
3025 - 3400 kHz	Access BPL	-	-
3500 - 4650 kHz	Access BPL	-	-
4700 - 5450 kHz	Access BPL	-	-
5680 - 6525 kHz	Access BPL	-	-
6685 - 8815 kHz	Access BPL	-	-
8965 - 10005 kHz	Access BPL	-	-
10100 - 11275 kHz	Access BPL	-	-
11400 - 13260 kHz	Access BPL	-	-
13360 - 17900 kHz	Access BPL	-	-
17970 - 21924 kHz	Access BPL	-	-
22000 kHz - 74.8 MHz	Access BPL	-	-
75.2 - 80 MHz	Access BPL	-	-

External Links:

BPL (CommLawBlog)

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Potential Future Amateur Radio Allocation

This band is identified by the ITU "to study spectrum requirements for a secondary allocation to the Amateur Service within the band 5250-5450 kHz." The issue is agenda item 1.4 for the 2015 World Radiocommunication Conference (WRC-15), for "the possibility of making an allocation of an appropriate amount of spectrum, not necessarily contiguous, to the Amateur Service on a secondary basis within the band 5250-5450 kHz."

Frequency Bands
Band	Use	Service	Table
5250 - 5450 kHz	Possible future allocation to amateur radio service	AM	-

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Related Documents, Links, and Multimedia:

FCC Proceeding (1)

FCC WRC-12 Notice of Proposed Rulemaking (FCC 15-50)

In the Notice of Proposed Rulemaking (WRC-12 Notice), we propose to amend Parts 2, 15, 80, 90, 97, and 101 of the Commission’s rules to implement allocation decisions from the WRC-12 Final Acts and make certain updates to our rules. Specifically, we propose to:

• Allocate the 8.3-11.3 kHz band to the meteorological aids service on a primary basis.

• Allocate the 472-479 kHz band (630 meter band) to the amateur service on a secondary basis.

• Amend the amateur service rules to provide for use of the 135.7-137.8 kHz (2200 meter) and 472-479 kHz (630 meter) bands. Amateur stations would share the band with power line carrier (PLC) systems operated by electric utilities. Amateur stations would be permitted to operate in these bands at fixed locations when separated from electric transmission lines by a specified distance.

• Amend Part 80 of the Commission’s rules to authorize radio buoy operations in the 1900-2000 kHz band under a ship station license.

• Limit the use of the 495-505 kHz band to the maritime mobile service.

• Allocate seven frequency bands (4.438-4.488 MHz, 5.25-5.275 MHz, 16.1-16.2 MHz, 24.45-24.65 MHz, 26.2-26.42 MHz, 41.015-41.665 MHz, and 43.35-44 MHz) to the radiolocation service (RLS) on a primary basis for Federal and non-Federal use, allocate the 13.45-13.55 MHz band to the RLS on a secondary basis for Federal and non-Federal use, limit the use of these RLS allocations to oceanographic radars, require that these radars not cause harmful interference to, or claim protection from, existing and future stations in the incumbent fixed and mobile services, and amend Part 90 of the Commission’s rules accordingly.

• Reallocate the 156.7625-156.7875 MHz (AIS 3) and 156.8125-156.8375 MHz (AIS 4) bands to the MSS (Earth-to-space) on a primary basis for Federal and non-Federal use to allow for greater probability of vessel tracking, with resulting benefits to maritime safety and security.

• Seek comment on the ability of Federal/non-Federal AMT stations to share spectrum with the incumbent services in the 4400-4940 MHz and 5925-6700 MHz bands.

• Extend the AM(R)S allocation from the 5091-5150 MHz band (adopted in the WRC-07 R&O) by also allocating the 5000-5091 MHz range to the AM(R)S on a primary basis for Federal and non-Federal use. AM(R)S use of the smaller 5000-5030 MHz range would extend the tuning range for AeroMACS, with the use of the 5010-5030 MHz band limited to those requirements that cannot be meet in the 5000-5010 MHz and 5091-5150 MHz bands. AM(R)S use of the 5030-5091 MHz band would support line-of-sight control links for unmanned aircraft.

• Allocate the 7850-7900 MHz band to the meteorological-satellite service (space-to-Earth) on a primary basis for Federal use.

• Allocate the 15.4-15.7 GHz band to the RLS on a primary basis for Federal use.

• Allocate the 22.55-23.15 GHz band to the space research service (SRS) (Earth-to-space) on a primary basis for Federal and non-Federal use and allocate the 25.5-27 GHz band to the SRS (space-to-Earth) on a primary basis for non-Federal use.

• Delete the aeronautical mobile service allocation from the 37-38 GHz band.

• Encourage operators of fixed stations operating in the 81-86 GHz and 92-94 GHz bands to take all reasonable steps to ensure that their unwanted emissions power in the 86-92 GHz band does not exceed the levels recommended by WRC-12.

Frequencies/Bands

8.3 - 11.3 kHz

135.7 - 137.8 kHz

472 - 479 kHz

495 - 505 kHz

1900 - 2000 kHz

4438 - 4488 kHz

5250 - 5275 kHz

13450 - 13550 kHz

16100 - 16200 kHz

24450 - 24650 kHz

26200 - 26420 kHz

41.015 - 41.665 MHz

43.35 - 44 MHz

156.775 MHz

156.825 MHz

4400 - 4940 MHz

5000 - 5150 MHz

5925 - 6700 MHz

7850 - 7900 MHz

15.4 - 15.7 GHz

22.55 - 23.15 GHz

25.5 - 27 GHz

37 - 38 GHz

86 - 92 GHz

275 - 3000 GHz

Document type and status: FCC proceeding (Current)
Document date or date of hyperlink query: July 29, 2015

FCC WRC-12 Notice of Proposed Rulemaking (FCC 15-50)

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Band Plan (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	5060 kHz	5255 kHz	5450 kHz
Wavelength	59.2 m	57.0 m	55.0 m
Band designator(s)	HF	HF	HF
Isotropic collecting area	279.3 m²	259.0 m²	240.8 m²
Free space loss (1 m)	N/A (near field)	N/A (near field)	N/A (near field)
Free space loss (1 km)	46.9 dB	46.9 dB	47.2 dB
Free space loss (10 km)	66.9 dB	66.9 dB	67.2 dB
Free space loss (100 km)	86.9 dB	86.9 dB	87.2 dB
Free space loss (1000 km)	106.9 dB	106.9 dB	107.2 dB
Free space loss (35,786 km = GEO orbit)	138.0 dB	137.9 dB	138.3 dB
Free space loss (378,370 km = Moon)	158.5 dB	158.4 dB	158.7 dB