|Channels||Digital: 10 (VHF)|
|Owner||Oregon Public Broadcasting|
|First air date||February 6, 1961 (as KOAP-TV)|
|Call letters' meaning||Oregon
|Former callsigns||KOAP-TV (1961-1989)|
|Former channel number(s)||Analog:
10 (VHF, 1961-2009)
27 (UHF, 2001-2009)
|Former affiliations||NET (1961-1970)|
|Transmitter power||32.4 kW|
KOPB-TV originally signed on the air as KOAP-TV, a satellite of KOAC-TV in Corvallis, Oregon. The call letters stood for KOAC Portland. KOAP was first housed at the campus of Portland State University, with the transmitter being located on Council Crest. KOAP-TV was a member of NET, or National Educational Television, carrying its programs. On April 30, 1962 KOAP-TV's FM sister service (KOAP-FM) signed on the air. By 1966, most local programs originated at KOAP-TV.
Originally known on-air as OEB (Oregon Educational Broadcasting), changing their name in early 1972 to OEPBS (Oregon Educational & Public Broadcasting Service). The network was spun off from the state board of education in October 1981 and renamed Oregon Public Broadcasting. At the same time, the network moved to Portland, and KOAP-FM/TV became the flagship stations. On February 15, 1989 KOAP-FM/TV changed their call letters to KOPB-FM/TV.
OPB was a pioneer in HDTV. As early as March 5, 1997 OPB's experimental HDTV station transmitted a random-bit data stream. On September 15, 1997 OPB Portland was assigned the experimental call letters KAXC for channel 35. Then on October 11, 1997 at 4:37 P.M. KAXC became the first TV station in Oregon and one of the first on the west coast to transmit an HDTV picture. After experimentation ended, channel 35 was vacated. On December 7, 2001 KOPB-DT began operation on channel 27.
- Oregon Public Broadcasting: Homepage
- PBS Homepage
- KOPB Engineering site About broadcast facilities of KOPB
- KOPB Tower About broadcast facilities of KOPB
- Query the FCC's TV station database for KOPB-TV
- BIAfn's Media Web Database -- Information on KOPB-TV
- Nelson, Bob (June 2, 2009). "Call Letter Origins" 238. The Broadcast Archive. Retrieved June 21, 2009.
- CDBS Print