KADX-FM was the 92.1 FM facility’s jazz-era call sign in the mid-to-late 1980s. FCC call history places KADX on the Castle Rock-licensed signal from 1984 to 1988. A November 1988 M Street Journal listing still identifies “KADX-92.1” as jazz, providing a period snapshot near the end of this chapter.
Station information
- Frequency: 92.1 MHz.
- Call-sign period: 1984–1988.
- Next identity: KZRZ-FM.
References
- FCC call-sign history for Facility ID 10056 (KJMN) — primary licensing chronology for the 92.1 FM facility.
- M Street Journal, November 1988 — contemporary trade-press listing for KADX at 92.1 and its jazz format.
Catalog note: An earlier Denver 105.1 reference appears in the archive’s notes, but that facility relationship is not established by the 92.1 licensing record cited here.
FROM THE TIMELINE
Moments in KADX-FM History
KADX 105.1 flips to jazz
In 1973, after Columbine Broadcasting acquired Denver's KADX 105.1, the station changed from middle-of-the-road programming to jazz.
KADX becomes country KBRQ
In 1982, Denver's 105.1 FM changed from jazz to country and adopted the KBRQ call letters. The FM simulcast its 1280 AM sister station before the frequency's 1987 transformation into KOOL 105.
92.1 becomes jazz KADX
In 1984, KRKY 92.1 changed to jazz and adopted the KADX call letters. The jazz era lasted until 1988.
92.1 becomes rock KZRZ
In 1988, KADX 92.1 ended its jazz format and became rock-formatted KZRZ. The rock incarnation was short-lived, lasting into 1989.
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