Broadcast areaPortland metropolitan area
Frequency1640 kHz
BrandingLa Patrona 1640
FormatRegional Mexican
First air date
October 20, 1997 (as KKJY)
Former call signs
KKJY (1997-1999)
KPBC (1999-2003)
Call sign meaning
Kids DiZney Radio (previous affiliation)
Technical information
Facility ID86618
Power10,000 watts day
1,000 watts night
Transmitter coordinates
45°27′14″N 122°32′47″W / 45.45389°N 122.54639°W / 45.45389; -122.54639
WebcastListen Live

KDZR (1640 AM) is a commercial radio station, licensed to Lake Oswego, Oregon, and serving the Portland metropolitan area. The station airs a Regional Mexican radio format and is owned by the Salem Media Group.[1] KDZR's studios and offices are on SE Lake Road in Portland.

The transmitter is off SE Eastview Drive in Happy Valley, Oregon.[2] KDZR is powered at 10,000 watts by day, but at night reduces power to 1,000 watts, to reduce interference to other stations on AM 1640. The station uses a non-directional antenna at all times.


KDZR began as the "expanded band" twin to station KPHP, which broadcast on the standard AM band. On March 17, 1997 the Federal Communications Commission (FCC) announced that eighty-eight stations had been given permission to move to newly available "Expanded Band" transmitting frequencies, ranging from 1610 to 1700 kHz, with then-KPHP, also in Lake Oswego, authorized to move from 1290 kHz to 1640 kHz.[3]

The FCC's initial policy was that both the original station and its expanded band counterpart could operate simultaneously for up to five years, after which owners would have to turn in one of the two licenses, depending on whether they preferred the new assignment or elected to remain on the original frequency,[3] although this deadline was extended multiple times. It was ultimately decided to transfer full operations to the expanded band station, and on February 23, 2006 the license for original station on 1290 kHz, which had subsequently changed its call sign to KKSL,[4] was cancelled.[5]

On October 20, 1997, the new expanded band station on 1640 kHz first signed on, as KKJY. It aired a Christian radio format, and was owned by Crawford Broadcasting.[6] On November 1, 1999, the station changed its call sign to KPBC while maintaining its religious format.

On February 14, 2003, the station switched to the current call letters KDZR.[7] It was acquired by the Walt Disney Company for use as the Portland network affiliate for its Radio Disney children's radio service. On February 16, the station began stunting with "Be Our Guest" from Beauty and the Beast in preparation for the switch to the Radio Disney format, which occurred on February 18.[8]

On August 13, 2014, The Walt Disney Company put KDZR and 22 other Radio Disney stations up for sale, in order to focus on digital distribution of the Radio Disney network.[9][10]

On September 15, the Salem Media Group announced it would acquire the last five Radio Disney owned-and-operated stations still available for sale, including KDZR, for $2.225 million.[11] KDZR was acquired through Salem Media of Oregon, Inc., for $275,000.[12] The Radio Disney format ended on November 27.[13]

The sale was completed on December 4, 2015.[14] KDZR returned to the air that same day, carrying a conservative talk format, branded as "Talk 1640".[15] On April 2, 2018, KDZR made some adjustments to its program schedule and rebranded as "AM 1640 The Patriot".[16] The move coincided with Salem beginning a local marketing agreement (LMA) to operate and program another Portland-area conservative talk station, KPAM Troutdale, which began calling itself "AM 860 The Answer."

On June 1, 2021 KDZR changed their format from conservative talk to Regional Mexican, branded as “La Patrona 1640”.[17]

Previous Talk Programming

KDZR previously aired nationally syndicated shows, primarily from the Salem Radio Network, including Mike Gallagher, Hugh Hewitt, Larry Elder, Jay Sekulow and Joe Walsh. Late mornings, the station also carried Washington D.C.-based Chris Plante from the Westwood One Network. Weekends featured a mix of talk shows and paid brokered programming. Weekend hosts include Clark Howard, Rudy Maxa, Dennis Prager and Eric Metaxas. Most hours begin with world and national news from Townhall News.

In addition to KDZR, Salem also operates another conservative talk station in the Portland radio market, AM 860 KPAM Troutdale. Salem doesn't own KPAM but has a local marketing agreement (LMA) to operate and program the station. Some Salem Radio Network shows that are not carried weekdays on KDZR are heard on KPAM, including Dennis Prager, Sebastian Gorka and Michael Medved.

Previous Logos

KDZR Talk1640 logo.png


  1. ^ "KDZR Facility Record". United States Federal Communications Commission, audio division.
  2. ^ Radio-Locator.com/KDZR
  3. ^ a b "FCC Public Notice: Mass Media Bureau Announces Revised AM Expanded Band Allotment Plan and Filing Window for Eligible Stations" (FCC DA 97-537), March 17, 1997.
  4. ^ Call Sign History: DKKSL (Facility ID: 35480)
  5. ^ FCC Station Search Details: DKKSL (Facility ID: 35480)
  6. ^ Broadcasting Yearbook 1999 page D-365
  7. ^ "KDZR Call Sign History". United States Federal Communications Commission, audio division.
  8. ^ https://feedback.pdxradio.com/forums/topic/craig-adams-this-day-in-portland-radio-historyfebruary-archive-edition/page/2/
  9. ^ Lafayette, Jon (August 13, 2014). "Exclusive: Radio Disney Moving Off Air to Digital". Retrieved August 13, 2014.
  10. ^ "Radio Disney to Sell the Majority of Its Stations". Billboard. 13 August 2014. Retrieved 13 August 2014.
  11. ^ Salem Acquires Radio Disney’s Final Five - Radio Insight
  12. ^ "Application for Consent to Assignment of Broadcast Station Construction Permit or License". CDBS Public Access. Federal Communications Commission.
  13. ^ https://feedback.pdxradio.com/forums/topic/craig-adams-this-day-in-portland-radio-historynovember-archive-edition/page/2/
  14. ^ Consummation Notice - Federal Communications Commission
  15. ^ Salem Launches Talk 1640 Portland
  16. ^ Salem Shuffles Programming at Three Portland AMs Radioinsight - April 3, 3018
  17. ^ Portland’s Patriot To Give Way To La Patrona Radioinsight - May 31, 2021