WTOP-FM
| 
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|---|---|
| Broadcast area | Washington metropolitan area | 
| Frequency | 103.5 MHz (HD Radio) | 
| Branding | WTOP Radio; WTOP News | 
| Programming | |
| Format | All-news radio | 
| Subchannels | |
| Affiliations | |
| Ownership | |
| Owner | 
 | 
| WBQH, WFED, WSHE | |
| History | |
| First air date | September 12, 1948 | 
| Former call signs | 
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| Former frequencies | 101.7 MHz (1948) | 
| Call sign meaning | carried over from 1500 AM, which was regarded as "the top of the dial" | 
| Technical information | |
| Licensing authority | FCC | 
| Facility ID | 11845 | 
| Class | B | 
| ERP | 
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| HAAT | 158 meters (518 ft) | 
| Transmitter coordinates | 38°56′10.6″N 77°05′31.5″W / 38.936278°N 77.092083°W | 
| Repeater(s) | 
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| Links | |
| Public license information  | |
| Webcast | |
| Website | wtop | 
WTOP-FM (103.5 FM) – branded "WTOP Radio" and "WTOP News" – is a commercial all-news radio station licensed to serve Washington, D.C. Owned by Hubbard Broadcasting, the station serves the Washington metropolitan area, extending its reach through two repeater stations: WTLP (103.9 FM) in Braddock Heights, Maryland, and WWWT-FM (107.7) in Manassas, Virginia. The WTOP-FM studios, referred to on-air as the "WTOP Glass-Enclosed Nerve Center", are located on Wisconsin Avenue in the Washington D.C. suburb of Chevy Chase, Maryland, while the station transmitter is located on the American University campus. Besides a standard analog transmission, WTOP-FM broadcasts over three HD Radio channels, and is available online.
WTOP-FM is the successor to the original WTOP, an AM station at 1500 kHz, which held the WTOP call sign from 1943 until 2006, and adopted an all-news format on March 9, 1969.