KKRZ
CHR radio station in Portland, OR
KKRZ (100.3 MHz) is a commercial FM radio station in Portland, Oregon, known as Z100. It is owned by iHeartMedia and airs a contemporary hit radio (CHR) format. The studios and offices are on SW 68th Parkway in Tigard.
KKRZ has an effective radiated power (ERP) of 100,000 watts, the maximum for most U.S. FM stations. Its transmitter site is in Portland's West Hills, off NW Skyline Boulevard.
KKRZ also transmits using HD Radio technology. Its HD2 digital subchannel carries an alternative rock format known as "Alt 102.3." That signal feeds the 99-watt FM translator K272EL on 102.3 MHz.
Programming
Z100 carries a pair of syndicated shows on weekdays, "Johnjay and Rich" in morning drive time and Ryan Seacrest at midday. Local DJs are heard in the afternoon and evening.
In addition to the morning show, KKRZ's weekday lineup includes On Air with Ryan Seacrest in middays, Maui in early afternoons, Zann in afternoon drive time, and Jake B. in the evening.
The public source identifies “KKRZ” as cHR radio station in Portland, OR. This brief keeps that definition visible, then builds a research path around KKRZ, radio and station.
Why this record matters
A short description can identify a subject without explaining its stakes. For “KKRZ”, the useful work is to connect “cHR radio station in Portland, OR” to the records capable of establishing context and consequence.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated May 3, 2026. The linked authority identifier is Q6332092. Authority coordinates are 45.522, -122.747. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “KKRZ”, its source revision and the description used here.
- Expand the search: follow KKRZ primary sources, KKRZ archive and KKRZ research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “KKRZ”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “KKRZ” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.