KHTP (103.7 FM, "Hot 103-7"), is a commercial radio station in Seattle. The station is owned and operated by Audacy, Inc. and it airs a classic hip-hop radio format. The studios and offices are on Fifth Avenue in Downtown Seattle. KHTP's transmitting antenna is on Tiger Mountain in Issaquah. It broadcasts in the HD Radio format, carrying an adult album alternative (AAA) format on its HD2 subchannel. KHTP's signal also heard on FM translator K281AD 104.1 MHz in Olympia. History KTWR (1958-1964) On June 2, 1958, the station first signed on as KTWR, originally on 103.9 MHz. It was owned by Thomas Wilmot Read (hence the call sign) and its effective radiated power was 830 watts. The signal was limited to the area in and around Tacoma, not the larger Seattle radio market. KTAC (1964-1977) In 1964, the station was acquired by Tacoma Broadcasters, Inc, which already owned KTAC (now KHHO). Tacoma Broadcasters changed the call letters to KTAC-FM to simulcast KTAC. A few years later, the FM station began running separate programming, with an automated Top 40 format. Entercom bought KTAC-AM-FM in June 1973. Beautiful music (1977-1991) In 1977, the FM call letters were changed to KBRD, as Entercom flipped the station to a beautiful music format as "K-Bird FM 104." KBRD upgraded to a stronger signal at 103.7 FM in 1979. The station went from less than 930 watts, 1 kW ERP, to a new diesel-fueled power generator and the output of the transmitter at 63,000 watts, boosted 100 kW. ERP by a complicated additive antenna array that was noisy. Adult alternative (1991-2012) At 2 p.m. on April 10, 1991, KBRD flipped to a long running adult album alternative (AAA) format as "FM 104 The Mountain" and the KMTT call sign. The first song on "The Mountain" was "Rock Me on the Water" by Jackson Browne. The former KBRD call letters are now on 680 AM in Lacey. The station did have some ratings issues for the first couple of years due to its transmitter location south of Tacoma. This was changed when the transmitter relocated to Tiger Mountain in Issaquah, amid the towers for other Seattle area TV and FM stations. KMTT, while it was never #1 in Arbitron ratings books, did well with affluent adult demographics. It was the Seattle market's fourth attempt at a AAA format dating back to 1975-1983 as KZAM FM 92.5 (now