# 47 CFR § 73.25: Clear channels; Class A, Class B and Class D stations

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-47-73.25

## Section

- **Citation:** 47 CFR § 73.25
- **Heading:** Clear channels; Class A, Class B and Class D stations
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 47—Telecommunication > CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION > SUBCHAPTER C—BROADCAST RADIO SERVICES > PART 73—RADIO BROADCAST SERVICES > Subpart A—AM Broadcast Stations

## Text

The frequencies in the following tabulations are designated as clear channels and assigned for use by the Classes of stations given:
(a) On each of the following channels, one Class A station may be assigned, operating with power of 50 kW: 640, 650, 660, 670, 700, 720, 750, 760, 770, 780, 820, 830, 840, 870, 880, 890, 1020, 1030, 1040, 1100, 1120, 1160, 1180, 1200, and 1210 kHz. In Alaska, these frequencies can be used by Class A stations subject to the conditions set forth in § 73.182(a)(1)(ii). On the channels listed in this paragraph, Class B and Class D stations may be assigned.
(b) To each of the following channels there may be assigned Class A, Class B and Class D stations: 680, 710, 810, 850, 940, 1000, 1060, 1070, 1080, 1090, 1110, 1130, 1140, 1170, 1190, 1500, 1510, 1520, 1530, 1540, 1550, and 1560 kHz.
Note:
Until superseded by a new agreement, protection of the Bahama Islands shall be in accordance with NARBA. Accordingly, a Class A, Class B or Class D station on 1540 kHz shall restrict its signal to a value no greater than 5 µV/m groundwave or 25 µV/m-10% skywave at any point of land in the Bahama Islands, and such stations operating nighttime (i.e., sunset to sunrise at the location of the U.S. station) shall be located not less than 650 miles from the nearest point of land in the Bahama Islands.
(c) Class A, Class B and Class D stations may be assigned on 540, 690, 730, 740, 800, 860, 900, 990, 1010, 1050, 1220, 1540, 1570, and 1580 kHz.
[28 FR 13574, Dec. 14, 1963, as amended at 33 FR 4410, Mar. 12, 1968; 35 FR 18052, Nov. 25, 1970; 47 FR 27862, June 28, 1982; 49 FR 43960, Nov. 1, 1984; 50 FR 24520, June 11, 1985; 52 FR 47568, Dec. 15, 1987; 53 FR 1031, Jan. 15, 1988; 54 FR 39736, Sept. 28, 1989; 56 FR 64857, Dec. 12, 1991]

## Nearby sections

- [47 CFR § 73.1 § 73.1 Scope.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.1.md)
- [47 CFR § 73.14 § 73.14 AM broadcast definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.14.md)
- [47 CFR § 73.21 § 73.21 Classes of AM broadcast channels and stations.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.21.md)
- [47 CFR § 73.23 § 73.23 AM broadcast station applications affected by international agreements.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.23.md)
- [47 CFR § 73.24 § 73.24 Broadcast facilities; showing required.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.24.md)
- [47 CFR § 73.25 § 73.25 Clear channels; Class A, Class B and Class D stations.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.25.md)
- [47 CFR § 73.26 § 73.26 Regional channels; Class B and Class D stations.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.26.md)
- [47 CFR § 73.27 § 73.27 Local channels; Class C stations.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.27.md)
- [47 CFR § 73.28 § 73.28 Assignment of stations to channels.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.28.md)
- [47 CFR § 73.29 § 73.29 Class C stations on regional channels.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.29.md)
- [47 CFR § 73.30 § 73.30 Petition for authorization of an allotment in the 1605-1705 kHz band.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.30.md)
- [47 CFR § 73.31 § 73.31 Rounding of nominal power specified on applications.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.31.md)
- [47 CFR § 73.33 § 73.33 Antenna systems; showing required.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.33.md)
- [47 CFR § 73.35 § 73.35 Calculation of improvement factors.](https://www.frixlaw.com/law-library/statutes/ecfr-47-73.35.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-47-73.25. Check the current official text before relying on it. Not legal advice.