KCBX

"KSBX" redirects here. For the airport in Shelby, Montana, assigned the ICAO code KSBX, see Shelby Airport.

KCBX / KNBX / KSBX

City of license	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	KCBX FM 90
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: 2,700 watts KSBX: 50 watts
HAAT	KCBX: 433 meters KNBX: 543 meters KSBX: 274 meters
Class	KCBX: B KNBX: B KSBX: A
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 and classical music, along with specialty shows such as Democracy Now.

Station repeaters

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 as well as several broadcast translators scattered throughout the Central Coast.

Translators	Frequency	Location	Power (watts)
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	9

KPBS-FM interference problem in Santa Barbara

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 an 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

• KCBX official website
• Query the FCC's FM station database for KCBX
• Radio-Locator information on KCBX
• Query Arbitron's FM station database for KCBX
• Query the FCC's FM station database for KNBX
• Radio-Locator information on KNBX
• Query Arbitron's FM station database for KNBX
• Query the FCC's FM station database for KSBX
• Radio-Locator information on KSBX
• Query Arbitron's FM station database for KSBX
• Query the FCC's FM station database for K215AF
• Query the FCC's FM station database for K215AG
• Query the FCC's FM station database for K215AH
• Query the FCC's FM station database for K216AG
• Query the FCC's FM station database for K236AF