Chronology of call letters WRRedit
From Radio-TV Broadcast History
Note: Originally licensed as a point-to-point communications station, thus not on the 833 khz frequency of most early broadcasters. Relicensed March 13, 1922.
- Date: August 4, 1921-June 30, 1928... ( Note: Off the air between April 16, 1925 and October 5, 1925.)
- Frequency:
- 600 khz (...1921-March 13, 1922) [concurrently with 667, 750]
- 667 khz (...1921-March 13, 1922) [concurrently with 600, 750]
- 750 khz (...1921-March 13, 1922) [concurrently with 600, 667]
- 619 khz (...April 1, 1922...) [concurrently with 833, see history page]
- 833 khz (March 13, 1922-December 2, 1924) [concurrently with 619, see history page]
- 1150 khz (December 2, 1924-April 16, 1925) ( Note: Off the air after April 16, 1925, though still listed in a source dated June 30, 1925.)
- 1220 khz (October 5, 1925-June 1, 1927)
- 850 khz (June 1, 1927-November 1, 1927)
- 650 khz (November 1, 1927-November 11, 1928)
- 1280 khz (November 11, 1928...)
- Location:
- Dallas, Texas (...June 30, 1922-June 30, 1928...)
- Owner of license:
- City of Dallas (...April 1, 1922...)
- City of Dallas Police & Fire Signal Department (...June 30, 1922-June 30, 1924...) ( NOTE: It is likely that the differences in wording shown by this and the next change are artifacts of the different sources consulted and not real changes.)
- City of Dallas (...June 30, 1926-June 30, 1928...)
