# Oregon Public Broadcasting

Oregon Public Broadcasting (OPB) is the primary television, radio and digital public broadcasting network for most of the U.S. state of Oregon as well as southern Washington. OPB consists of five full-power television stations, dozens of VHF or UHF translators, and over 20 radio stations and frequencies. It also streams its programming on the Internet. Broadcasts include local and regional programming as well as television programs from the Public Broadcasting Service (PBS) and American Public Television (APT), and radio programs from National Public Radio (NPR), American Public Media (APM), Public Radio Exchange (PRX), and the BBC World Service, among other distributors. Its headquarters and television studios are located in Portland, Oregon.
OPB has been a major producer of television programming for national broadcast on PBS and Create through distributors like APT, with shows such as History Detectives, Barbecue America, Foreign Exchange, Rick Steves' Europe, and travel shows hosted by Art Wolfe.
The part of southwestern Oregon not served by OPB is served by KLCC radio, Jefferson Public Radio, and Southern Oregon PBS.

## History
### 20th century

OPB traces its roots back to January 23, 1923, when KFDJ signed on from the Oregon State University campus in Corvallis. From 1923 to 1981, the Oregon State campus served as the radio and later TV base of operations for Oregon's public broadcasting. Charles B. Mitchel, a first-year speech professor at Oregon State, was instrumental in bringing Oregon's first public radio station to the state. OSU physics instructor Jacob Jordan is credited with building the station's first radio transmitter near campus in 1923.
The radio station's call letters were changed to KOAC on December 11, 1925. In 1932, KOAC became a service of the Oregon State Board of Higher Education General Extension Division.
During the mid-1950s, the university constructed KOAC's first TV studios inside Gill Coliseum. On October 7, 1957, the station began television broadcasting as KOAC-AM-TV. For nearly 60 years, faculty and students at Oregon State University broadcast news, information and entertainment programming across the state from the Corvallis studios. First known as Oregon Educational Broadcasting, the public network became the Oregon Educational and Public Broadcasting Service (OEPBS) in 1971.
KOAC won its first Peabody Award for Outstanding Public Service by a Local Station in 1942 for Our Hidden Enemy, Venereal Disease. KOAC won a second Peabody Award in 1972 for Conversations with Will Shakespeare and Certain of His Friends.
In the late 1950s, KOAC's broadcast signal was shared across the state by microwave transmitters and receivers. KOAC also added satellite studios for radio broadcasting in Eugene, Monmouth, Salem, and Portland. In the 1960s, satellite TV studios were added in Portland and Eugene. The Portland satellite, KOAP-FM-TV, was located in a leased building at what is now 2828 SW Naito Parkway. KOAP started broadcasting on February 6, 1961. The Eugene satellite was located on the University of Oregon campus, in Villard Hall. Up until 1965, all programs from the KOAC satellites were live, due to a lack of video recording equipment. Both studios operated two RCA TK31 cameras for live broadcasts.
On December 6, 1964, KTVR-TV began broadcasting in La Grande. The station started primarily as a commercial television station, affiliated with NBC and ABC. KTVR-TV operated as a semi-satellite of KTVB in Boise, Idaho. The La Grande studio was located at 1605 Adams Ave. and produced nightly newscasts and other local programming. However, by 1967, the La Grande studio and office were closed and KTVR became a full-fledged satellite of KTVB. KTVR was unique in the Pacific Time Zone, because as a repeater of a Mountain Time Zone station, its "prime time" schedule was broadcast from 6 to 9 p.m. OEPBS bought KTVR on August 31, 1976, and converted it to PBS on February 1, 1977. At first, KTVR rebroadcast programming from two Washington stations—KWSU-TV in Pullman and KSPS-TV in Spokane—until OEPBS completed a transmission link to La Grande. On September 1, 1977, OEPBS took KTVR off the air for transmitter repairs, due to increasing technical problems. KTVR returned to the air on January 1, 1978, carrying OEPBS programming for the first time.
KOAB-TV in Bend began broadcasting on February 24, 1970, as KVDO-TV, a commercial independent station licensed to Salem. Channel 3 struggled to compete with Portland's established independent, KPTV (channel 12), and in 1972, the station was purchased by Liberty Communications, then-owners of Eugene's ABC affiliate KEZI (channel 9). The intention was to make KVDO a full-power satellite of KEZI. During the sale, KATU (channel 2), Portland's ABC affiliate, objected over duplication of programming, and there were also objections to Liberty's common ownership of local cable systems and the television station. As a result, the Federal Communications Commission (FCC) allowed Liberty to buy KVDO-TV on the condition that it sell the station within three years.
The state government approved the purchase of KVDO-TV in 1975, with OEPBS taking control of the station on February 19, 1976. Nine days later, on February 28, a disgruntled viewer protesting KVDO's sale to OEPBS cut guy wires, toppling the channel 3 transmitter tower. On September 20, 1976, KVDO signed back on the air with a new tower; from then until March 31, 1981, the station broadcast an alternate program lineup to KOAP-TV and KOAC-TV, featuring time-shifted OEPBS programs, shows for the Spanish-speaking population in the Willamette Valley, and several local productions in Salem. OEPBS consistently eyed moving the station elsewhere to reduce duplication, which became more acute when budget cuts prompted KVDO-TV to drop its separate programs in 1981. The network pursued and won approval from the FCC to move the channel 3 allocation and license to Bend, which had no PBS coverage. KVDO-TV ceased broadcasting in Salem on July 31, 1983; on December 22, channel 3 signed back on the air as KOAB. The call letters were modified to KOAB-TV when KOAB-FM signed on the air on January 23, 1986.
KEPB-TV in Eugene began operation on February 27, 1990, as Eugene's first public television station, bringing most of Eugene a clear signal for PBS programming for the first time ever. Although KOAC-TV had long claimed Eugene as part of its primary coverage area (Corvallis is part of the Eugene market), it only provided rimshot coverage to most of Eugene itself and was marginal at best in the southern portion of the city. Most of Eugene could only get a clear picture from KOAC-TV on cable.
In 1981, OEPBS was spun off from the Oregon State System of Higher Education and became a separate state agency, Oregon Public Broadcasting. As part of the network overhaul, KOAP became the flagship of the OPB network and central operations were relocated from Corvallis to Portland.
In the early 2000s, OPB installed Oregon's first digital transmitter, taking a critical first step in the digital television transition.

### 21st century

For 2001 and 2002, the Oregon state government provided about 14 percent of OPB's operational budget; for 2003 and 2004, it was cut to 9 percent.
On December 4, 2007, OPB launched opbmusic, a 24-hour online radio channel spotlighting Pacific Northwest musicians. As of December 11, 2020, OPB discontinued the opbmusic HD radio and online audio stream and integrated opbmusic multimedia content into its broader arts and culture reporting.
In March 2009, the Corporation for Public Broadcasting chose OPB to manage the pilot version of American Archive, CPB's initiative to digitally preserve content created by public broadcasters.

## Television stations

| Station | City of license | Channels (RF / VC) | First air date | Call letters' meaning | ERP | HAAT | Facility ID | Transmitter coordinates | Public license information |
| KOPB-TV | Portland | 10 (VHF) 10 | February 6, 1961 (64 years ago) (1961-02-06) | Oregon Public Broadcasting | 46 kW | 524 m (1,719 ft) | 50589 | 45°31′20.5″N 122°44′49.5″W﻿ / ﻿45.522361°N 122.747083°W﻿ / 45.522361; -122.747083﻿ (KOPB-TV) | Public file LMS |
| KOAC-TV | Corvallis | 7 (VHF) 7 | October 7, 1957 (67 years ago) (1957-10-07) | Oregon Agricultural College | 18.1 kW | 357 m (1,171 ft) | 50590 | 44°38′24.9″N 123°16′29.3″W﻿ / ﻿44.640250°N 123.274806°W﻿ / 44.640250; -123.274806﻿ (KOAC-TV) | Public file LMS |
| KEPB-TV | Eugene | 29 (UHF) 28 | September 27, 1990 (34 years ago) (1990-09-27) | Eugene Public Broadcasting | 100 kW | 403 m (1,322 ft) | 50591 | 44°0′9″N 123°6′58.5″W﻿ / ﻿44.00250°N 123.116250°W﻿ / 44.00250; -123.116250﻿ (KEPB-TV) | Public file LMS |
| KOAB-TV | Bend | 11 (VHF) 3 | February 24, 1970 (55 years ago) (1970-02-24) | KOAC Bend | 90 kW | 245 m (804 ft) | 50588 | 44°4′39.9″N 121°20′0.3″W﻿ / ﻿44.077750°N 121.333417°W﻿ / 44.077750; -121.333417﻿ (KOAB-TV) | Public file LMS |
| KTVR | La Grande | 13 (VHF) 13 | December 6, 1964 (60 years ago) (1964-12-06) | Television Grande Ronde | 16.1 kW | 775 m (2,543 ft) | 50592 | 45°18′32.7″N 117°43′58.3″W﻿ / ﻿45.309083°N 117.732861°W﻿ / 45.309083; -117.732861﻿ (KTVR) | Public file LMS |
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)
Notes:
* ↑ KOPB-TV used the callsign KOAP-TV from its 1961 sign-on until 1989.
* ↑ KEPB-TV used the call sign KZJD during its construction permit from 1989 to 1990, and KEPB (without the -TV suffix) for just one day on May 1, 1990.
* ↑ KOAB-TV used the callsign KVDO-TV from its 1970 sign-on until 1983. It was a commercial independent station until OEPBS bought the station in 1976. It was licensed to Salem until 1983.
* ↑ KTVR was a commercial station relaying KTVB from Boise, Idaho until 1977.

## Cable and satellite availability

OPB Television is available on all cable providers in its service area. On Dish Network, KOPB-TV, KEPB-TV, and KOAB-TV are available on the Portland, Eugene and Bend local broadcast station lineups, respectively. KOPB-TV and KEPB-TV are available on the Portland and Eugene DirecTV broadcast station lineups.

## Digital television

OPB's first digital channel was OPB CREATE (an affiliate of the Create network), announced in January 2006; its availability was limited to certain Comcast digital cable customers and on Clear Creek Television in Oregon City.
In December 2008, in anticipation of the original February 18, 2009, deadline for switching to all-digital broadcasting, OPB announced the launch of three digital subchannels: OPB, which would air OPB programming with an "improved picture for viewers with traditional sets", OPB HD, airing programming in "high definition with the highest-quality picture and sound", and OPB Plus, which offered "more choices in viewing times and added programs in news, public affairs and lifestyle."

### Subchannels

OPB currently offers four digital multiplex channels:
OPB multiplex :
| Channel | Res. | Aspect | Short name | Programming |
| xx.1 | 1080i | 16:9 | OPB | PBS |
| xx.2 | 1080i | 16:9 | World | OPB World |
| xx.3 | 480i | 16:9 | OPBKids | OPB Kids |
| xx.4 | Audio only | Audio only | OPB-FM | OPB Radioopbmusic (SAP channel 1)KMHD Jazz Radio (SAP channel 2) |
OPB was one of the partners of The Oregon Channel, a public affairs network that began with the 74th Oregon Legislative Assembly in 2007. Programming consisted of Oregon legislative sessions and other public affairs events. The Oregon Channel was discontinued in 2011.
All of OPB's digital channels are also available on cable providers Comcast Xfinity, Charter Spectrum and Ziply Fiber (grandfathered TV subscribers), and three other providers serving specific regions and communities in Oregon: Clear Creek (a cooperative serving the Redland area of Oregon City), BendBroadband (serving Central Oregon), and Crestview Cable Communications (serving Madras, Prineville, and La Pine).
On July 6, 2011, OPB combined OPB and OPB SD into one high-definition channel feed on the main channel of its digital stations. OPB Plus moved from the third digital subchannel to the second subchannel and OPB Radio moved from the fourth digital subchannel to the third subchannel.
On January 26, 2023, OPB ended broadcasting of OPB Plus and replaced it with OPB World.

### Analog-to-digital conversion

During 2009, OPB shut down the analog transmitters of the stations on a staggered basis. The station's digital channel allocations post-transition are as follows:
* KOAC-TV shut down its analog signal, over VHF channel 7; the station's digital signal relocated from its pre-transition UHF channel 39 to VHF channel 7.
* KOPB-TV shut down its analog, signal, over VHF channel 10; the station's digital signal relocated from its pre-transition UHF channel 27 to VHF channel 10.
* KEPB-TV shut down its analog signal, over UHF channel 28; the station's digital signal remained on its pre-transition UHF channel 29, using virtual channel 28.
* KOAB-TV shut down its analog signal, over VHF channel 3; the station's digital signal remained on its pre-transition VHF channel 11, using virtual channel 3.
* KTVR shut down its analog signal, over VHF channel 13; the station's digital signal relocated from its pre-transition VHF channel 5 to channel 13.

## Translators

* K17GK-D Arlington (translates KOPB-TV)
* K23GK-D Astoria (translates KOPB-TV)
* K20IV-D Baker City (translates KTVR)
* K36BA-D Burns (translates KOPB-TV)
* K26KQ-D Christmas Valley (translates KOPB-TV)
* K16IE-D Coos Bay (translates KOAC-TV)
* K23KD-D Coos Bay, etc. (translates KEPB-TV)
* K20IR-D Cottage Grove (translates KEPB-TV)
* K11VI-D Elkton (translates KOAC-TV)
* K28JC-D Enterprise (translates KTVR)
* K21FS-D Eugene (translates KEPB-TV)
* K32HF-D Florence (translates KEPB-TV)
* K24FH-D Glide, etc. (translates KEPB-TV)
* K29JN-D Gold Beach (translates KOPB-TV)
* K31IR-D Grays River, WA (translates KOPB-TV)
* K10NF-D Halfway (translates KTVR)
* K28GD-D Heppner, etc. (translates KOPB-TV)
* K36FG-D Hood River, etc. (translates KOPB-TV)
* K26FQ-D John Day (translates KOPB-TV)
* K34NG-D La Grande (translates KTVR)
* K19BK-D Lakeview (translates KOPB-TV)
* K33KD-D London Springs (translates KEPB-TV)
* KOAB-TV (DRT) 16 Madras (translates KOAC-TV)
* K34JR-D Madras (translates KOAC-TV)
* K19EC-D Mapleton (translates KEPB-TV)
* K30OA-D Milton-Freewater (translates KTVR)
* K33LZ-D Myrtle Point (translates KEPB-TV)
* KOPB-TV (DRT) 29 Newberg (translates KOPB-TV)
* K18FR-D Newport (translates KOAC-TV)
* K11SZ-D Oakridge (translates KEPB-TV)
* K30QD-D Ontario, etc. (translates KTVR)
* K19EI-D Pacific City/Cloverdale (translates KOAC-TV)
* K09VC-D Paisley (translates KOPB-TV)
* K28LO-D Paisley (translates KOPB-TV)
* K25OO-D Pendleton (translates KTVR)
* K16LI-D Port Orford (translates KEPB-TV)
* K26NJ-D Powers (translates KOAC-TV)
* K16EM-D Prineville, etc. (translates KOAB-TV)
* K28IH-D Rainier (translates KOPB-TV)
* K20LL-D Reedsport (translates KEPB-TV)
* K08KW-D Richland (translates KTVR)
* K36GU-D Rockway Beach (translates KOPB-TV)
* K15KN-D Roseburg (translates KEPB-TV)
* K34LS-D Seneca (translates KOPB-TV)
* KOPB-TV (DRT) 28 Sentinel Hill (translates KOPB-TV)
* K08LG-D Silver Lake, etc. (translates KOPB-TV)
* K31HZ-D The Dalles, etc. (translates KOPB-TV)
* KOAB-TV (DRT) 30 Warm Springs (translates KOAB-TV)
* K04MG-D Wedderburn, etc. (translates KOPB-TV)
Low-power translators in Elkton, Glendale, Mapleton, Myrtle Point, Newport, Oakland, Oakridge, and Swisshome have been discontinued.

## Radio stations

| Call sign | Frequency | City of license | Facility ID | Class | Power (W) | ERP (W) | Height (m (ft)) |
| KOAC-FM | 89.7 FM | Astoria | 81807 | A | — | 180 | 321 m (1,053 ft) |
| KOBK | 88.9 FM | Baker City | 94195 | C3 | — | 600 | 559 m (1,834 ft) |
| KOAB-FM | 91.3 FM | Bend | 50609 | C1 | — | 75,000 | 199 m (653 ft) |
| KOBN | 90.1 FM | Burns | 174446 | A | — | 600 | 274 m (899 ft) |
| KOAC | 550 AM | Corvallis | 50587 | B | 5,000 | — | — |
| KOTD | 89.7 FM | The Dalles | 173179 | A | — | 50 | 589 m (1,932 ft) |
| KETP | 88.7 FM | Enterprise | 174467 | A | — | 100 | 535 m (1,755 ft) |
| KOPB | 1600 AM | Eugene | 841 | B | 5,000 day 1,000 night | — | — |
| KOGL | 89.3 FM | Gleneden Beach | 91095 | A | — | 210 | −14 m (−46 ft) |
| KHRV | 90.1 FM | Hood River | 90769 | A | — | 65 | 227 m (745 ft) |
| KOJD | 89.7 FM | John Day | 174221 | A | — | 900 | −39 m (−128 ft) |
| KTVR-FM | 89.9 FM | La Grande | 94194 | C2 | — | 400 | 760 m (2,490 ft) |
| KOAP | 88.7 FM | Lakeview | 93285 | A | — | 170 | −180 m (−590 ft) |
| KOPB-FM | 91.5 FM | Portland | 50607 | C0 | — | 73,000 | 470 m (1,540 ft) |
| KRBM | 90.9 FM | Pendleton | 50608 | C2 | — | 25,000 | 180 m (590 ft) |
| KTMK | 91.1 FM | Tillamook | 91082 | A | — | 140 | 356 m (1,168 ft) |
Notes:
* ↑ Flagship station
Since the spring of 2009, OPB has operated jazz radio station KMHD; the station is owned by Mount Hood Community College, but operates out of OPB's studio facilities in Portland.

### HD stations

Currently only KMHD and KOPB-FM carry HD radio content.
The OPB HD radio channels are:
| Channel | Programming |
| OPB FM HD-1 | Main OPB radio programing |
| OPB FM HD-2 | opbmusic |
| KMHD-FM HD-1 | KMHD "Jazz Radio" |

### Other radio frequencies

* Halfway – 91.3 FM
* Happy Hollow, Oregon – 93.5 FM
* Nedonna Beach – 106.5 FM
* Richland – 91.9 FM
* Silver Lake (Lake County) – 91.7 FM
* Riley – 90.3 FM K212AQ (50 watts) FCC LMS
* Mount Vernon – 90.7 FM K214AQ (25 watts) FCC LMS
* Pacific City – 93.5 FM K228DT (10 watts) FCC LMS
* Walton – 98.3 FM K252DL (8 watts) FCC LMS
* Corvallis – 103.1 FM K276BU (15 watts) FCC LMS
* Astoria – 104.5 FM K283BT (70 watts) FCC LMS
* Nedonna Beach – 106.5 FM K293BL (10 watts) FCC LMS
Translators upgrading to full-power stations:
* Wagontire (Harney County) – 90.3 FM (CP: KOHP 90.7 FM Hines FCC LMS )

## Podcasting

In addition to their work in radio and television, OPB has produced multiple podcasts. For instance, OPB started a podcast version of its daily radio show in 2008 called Think Out Loud. OPB also began producing a weekly podcast about local politics called OPB Politics Now, which is hosted by Geoff Norcross. OPB produced a 2018 podcast hosted by Leah Sottile entitled Bundyville that discussed Cliven Bundy and the sovereign citizen movement. The following year they produced the second season of the podcast entitled Bundyville: The Remnant, which discussed right wing extremism and anti-government extremism in America more broadly. In 2020, OPB produced a podcast called Timber Wars. The podcast was hosted by Aaron Scott and discussed the 1990s conflicts in the Pacific Northwest between loggers and environmentalists.