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City KCBX: San Luis Obispo, California
KNBX: San Ardo, California
KSBX: Santa Barbara, California
Broadcast area KCBX: San Luis Obispo, California
KNBX: Monterey County
KSBX: Santa Barbara, California
Branding Central Coast Public Radio
Slogan Public Radio Serving the Central and Southern California Coast
Frequency KCBX: 90.1 MHz
(also on HD Radio)
KNBX: 91.7 MHz
KSBX: 89.5 MHz
First air date KCBX: July 25, 1975
KNBX: January 21, 2001
KSBX: April 1, 2003
Format Public Radio
ERP KCBX: 5,300 watts
KNBX: 3,000 watts
KSBX: 50 watts
HAAT KCBX: 433 metres (1,421 feet)
KNBX: 532.9 metres (1,748 feet)
KSBX: 274 metres (899 feet)
Class KCBX: B
Facility ID KCBX: 33705
KNBX: 51720
KSBX: 33708
Owner KCBX Public Radio
Webcast Listen Live
Website kcbx.org

KCBX (90.1 FM) is a public radio station based in San Luis Obispo, California. Its network of broadcast translators enable the station to be heard throughout the Central Coast.

KCBX airs various programs from NPR, such as All Things Considered. It also airs jazz, classical music, and specialty shows such as Democracy Now.

Station repeaters[edit]

KCBX operates a satellite station in Santa Barbara operating as KSBX on 89.5 MHz, one in Monterey County operating as KNBX on 91.7 MHz, and several broadcast translators scattered throughout the Central Coast.

Translators Frequency Location Power
K215AF 90.9 Cambria 13
K215AG 90.9 Solvang 10
K215AH 90.9 Avila Beach 10
K216AG 91.1 Cayucos 38
K236AF 95.1 Lompoc 10

KPBS-FM interference problem in Santa Barbara[edit]

In parts of the Santa Barbara area sometimes during atmospheric ducting co-channel KPBS-FM in San Diego can override or interfere with the KSBX signal. At one time KSBX was a 9 watt translator on 89.9 MHz. Another station is now using that translator. A deal was worked out that would vacate that frequency. In 2006 KCBX filed an application for a U.S. Federal Communications Commission (FCC) construction permit to move back to 89.9 MHz and increase the effective radiated power from 50 watts to 350 watts. Part of the application were copies of numerous letters and emails from listeners complaining about the signal override or interference from KPBS. In support of the frequency change a consulting broadcast engineer was hired to analyze the situation, make signal strength measurements during ducting and fully explain the technical causes of the problem to the FCC. The KPBS signal travels completely over water, which makes the problem worse.

In 2010 KPBS was granted a construction permit to increase its effective radiated power from 2,700 watts to 26,000 watts. The consulting engineer explained to the FCC that if the frequency change was not granted this would make the already bad situation even worse. In February 2012 the FCC dismissed the construction permit application from KCBX. KPBS started broadcasting with the new 26,000 watt signal on October 1, 2012.

External links[edit]

Coordinates: 35°21′36″N 120°39′22″W / 35.360°N 120.656°W / 35.360; -120.656