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KLTH 106.7TheEagle logo.png
Broadcast areaPortland, Oregon
Frequency106.7 MHz (HD Radio)
Branding106.7 The Eagle
FormatClassic hits
SubchannelsHD2: KEX simulcast (News/Talk)
AffiliationsPremiere Networks
KATU-TV (weather)
First air date
September 15, 1972 (as KQIV)
August 1, 1977 (as KMJK)
Former call signs
KQIV (1972-1976)
KMJK (1977-1991)
KMXI (1991-1993)
KKBK (1993-1994)
KKJZ (1994-2002)
Call sign meaning
K-LiTe H (former branding)
Technical information
Licensing authority
Facility ID4115
ERP100,000 watts
HAAT502 meters (1,647 ft)
Transmitter coordinates
45°30′58″N 122°43′59″W / 45.51611°N 122.73306°W / 45.51611; -122.73306
Public license information
WebcastListen Live

KLTH (106.7 MHz "The Eagle") is a commercial FM radio station, licensed to Lake Oswego, Oregon, and serving the Portland metropolitan area. It is owned by iHeartMedia, Inc., and airs a classic hits radio format. Specialty programs on KLTH include Casey Kasem's "American Top 40: The 70s" on Saturday and Sunday mornings. Sundays also feature Yacht Rock".

KLTH's studios and offices are located on SW 68th Parkway in Tigard, Oregon.[1] The transmitter is located on SW Barnes Road in the Tualatin Mountains.[2] KLTH covers much of Northwestern Oregon and Southwestern Washington.



The station signed on for the first time at 10:15 P.M. PDT on September 15, 1972 as KQIV.[3] It was a short-lived but popular progressive rock station. KQIV was owned and operated by Willamette Broadcasting Company, Inc., with Walter J. M. Kraus serving as president. The station also called itself "KQ4" and "FM 107".

The original KQIV offices and studios were located at the Lake Oswego Elks Lodge (#2263). Members of this historically conservative organization frequently crossed paths with the station's hippie disc jockeys and creative staff.[4]

The KQIV transmitter was located between Oregon City and Carver. An American Electronic Laboratories (AEL) FM-25KD transmitter fed 24,000 watts into a Jampro JSCP eight element antenna yielding an effective radiated power (ERP) of 100,000 watts.[4] The antenna was mounted on a 200-foot tower based at an elevation of 800 feet in height above average terrain (HAAT).

Both the "Q" and "IV" in the station's call sign alluded to four-channel quadraphonic sound. KQIV was reported in the local press to be the second quadraphonic radio station in the world.[5] and the first to be designed and built to be quadraphonic,[4] But those reports were based on erroneous information. KQIV established its quadraphonic identity and "Rockin' in Quad" branding in anticipation of being selected as the exclusive FM station in the Portland radio market to field test the Dorren Quadraplex System, invented by audio engineer Louis Dorren. About a month before KQIV went on the air, the FCC suspended further testing of Quadraplex due to a concern that the system used a subcarrier component not permitted under its regulations.[6]

KQIV continued to identify itself as a quadraphonic station in the hope that Quadraplex testing eventually would be permitted. Meanwhile, the station broadcast music from phonograph records encoded in various quadraphonic matrix formats.

In 1974, operation of KQIV was turned over to Brotherhood Broadcasting Company, with Roy Jay as president. Brotherhood changed the station's music format to urban contemporary, branded as "Soul 107". In 1975, the KQIV offices and studios were moved to Milwaukie. But the station's ratings failed to improve. Ongoing financial difficulties led to the court-ordered liquidation of KQIV, which went off the air on June 18, 1976.[7]


KQIV remained silent for nearly 14 months. On August 1, 1977, Communico Northwest Corp. began operating the station, using the same license as KQIV. The call sign switched to KMJK, using the moniker "Magic 107" and playing soft rock.[8] The offices and studios moved to "Magic Manor" in Lake Oswego and the transmitter was relocated to Portland.[9]

On June 29, 1979, KMJK changed its format to Top 40, but still called "Magic 107." The contemporary hit format failed to catch on, and in July 1981, KMJK changed back to Soft Adult Contemporary music, still using the "Magic 107" moniker. In August 1982, KMJK switched back to Top 40, while retaining the "Magic 107" name. On April 13, 1987, at 6 a.m., after a 12-hour stunt, KMJK changed its format to classic hits, now calling itself "Classic Hits 106.7."[10][11] On September 1, 1989, KMJK shifted its format to classic rock, calling itself "Classic Rock 106.7."[12] On February 19, 1990, KMJK changed to hot adult contemporary as "106.7 Magic FM."[13]


On January 25, 1991, the station rebranded and changed call letters to "Mix 106" KMXI, while continuing its Hot AC format.[14] On December 30, 1991, KMXI changed its format to oldies as "Oldies 106.7."[15]

In 1993, KMXI was bought by BayCom Partners for $2.6 million.[16] On July 7, 1993, 106.7 flipped to classical music as "K-Bach" KKBK.[17] While the format was popular with mostly older listeners, the station struggled to attract advertisers.

In less than a year, management decided to try a different unique format that was catching on in many cities, Smooth Jazz. On March 17, 1994, the station became KKJZ, and rebranded as "Smooth Jazz 106.7."[18]


In 1998, KKJZ was acquired by Infinity Broadcasting, which later was merged into CBS Radio.[19] On February 1, 2002, CBS changed the station's call sign to KLTH, and flipped back to Soft AC as "Lite Rock 106.7, K-Lite."[20]

On January 9, 2006, KLTH changed its format to 1960s and 1970s oldies as "106.7 K-Hits."[21] Over time, KLTH expanded its scope to cover the 1980s as well. Its competition was Adult hits KYCH, which was previously KKSN, Portland's outlet for the oldies format prior to KLTH's debut. The debut of “K-Hits” was quite successful, capitalizing on the oldies/classic hits vacuum left by KKSN. Programmed by Dennis Constantine and Creative Imaging by John Hugill, K-Hits was a top 3 contender until KQOL changed to classic hits and competed directly.

On April 1, 2009, CBS Radio sold KLTH to Clear Channel Communications along with KXJM. The sale made KLTH and KQOL sister stations. Both co-existed until May 6, 2009, when KQOL flipped to classic rock as KFBW. Previous KQOL were redirected to KLTH, which aired the message "Welcome 105.9 listeners." Weekend specialty programs on KLTH included "Saturday Night Fever", a weekly classic Disco show.

Shortly after the move, on August 17, 2009, the name was changed to "Oldies 106.7" with a logo identical to CBS Radio's WODS in Boston. This was later replaced by a more modern logo. In the May 2011 Arbitron PPMs, KLTH became the number one station in the Portland area radio rankings, overtaking the market's usual top station, co-owned KKCW, which plays adult contemporary music.[22]

On August 1, 2014, at 5 p.m., KLTH shifted its format to classic hits and rebranded as "106.7 The Eagle".[23] Most listeners did not notice much of a change, since KLTH had already been cutting back 1960s titles and focusing mostly on the 70s and 80s hits.


In 2010, KLTH began broadcasting in the HD Radio format. On June 4, 2010, KLTH-HD2 signed on a 1950s-1960s oldies format branded as "Real Oldies".[24] On April 17, 2015 KLTH-HD2 switched to iHeartMedia's "My 60s" format, featuring the hits of the 1960s (now known as "iHeart '60s").


In December 2018 KLTH began airing "The Breeze" soft adult contemporary format on its HD3 subchannel. It has since removed.


  1. ^
  2. ^ "KLTH-FM 106.7 MHz - Lake Oswego, OR".
  3. ^ Broadcasting Yearbook 1973 page B-164
  4. ^ a b c "First In The Nation—New Station Not After 'Kicksy' Crowd". Enterprise Courier. November 24, 1972. Retrieved 2008-03-24.
  5. ^ LaNita Anderson (September 15, 1972). "New-Style Station Airs From Oswego". Oregon Journal. Retrieved 2008-03-24.
  6. ^ "Public documents" (PDF). Retrieved 2020-01-25.
  7. ^ Francis Murphy (June 18, 1976). "KQIV-FM goes off air Friday". The Oregonian. Retrieved 2008-03-24.
  8. ^ "Topic: This Day in Portland Radio History (August) (Archive Edition) |".
  9. ^ Federal Communications Commission (1980). "FCC History Cards: KQIV/KMJK" (PDF). Retrieved 1 July 2017.
  11. ^ "KMJK Portland Radio Station 80s Commercial (1988)". Archived from the original on 2021-12-14 – via
  12. ^ "Topic: This Day in Portland Radio History (September) (Archive Edition) |".
  16. ^ Broadcasting Yearbook 1994 page B-B-304
  17. ^ "Topic: This Day in Portland Radio History (JULY) (Archive Edition) |".
  19. ^ Broadcasting & Cable Yearbook page D-364
  20. ^ "R and R" (PDF). American Radio History. 2002. Retrieved 2020-01-25.
  21. ^ "R and R" (PDF). American Radio History. 2006. Retrieved 2020-01-25.
  22. ^ Portland Arbitrons Archived 2011-09-02 at the Wayback Machine from Radio-Info
  23. ^ "Portland Gains An Eagle". August 2, 2014.
  24. ^ "FM Radio - Portland Radio Guide".

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