KDIA

KDIA
	Vallejo, California; United States;
Broadcast area	San Francisco Bay Area
Frequency	1640 kHz
Branding	1640 KDIA
Programming
Format	Christian talk and teaching
Ownership
Owner	Salem Media Group; (New Inspiration Broadcasting Company, Inc.);
Sister stations	KDOW, KDYA, KFAX, KTRB
History
First air date	March 19, 1996
Former call signs	KXBT (1996-1998)
Former frequencies	1630 kHz (1996-1997);
Call sign meaning	named after the original KDIA, which was a sister station to WDIA
Technical information
Licensing authority	FCC
Facility ID	87108
Class	B
Power	10,000 watts
Transmitter coordinates	37°53′43.7″N 122°19′30.9″W / 37.895472°N 122.325250°W (day); 38°8′2.7″N 122°25′35.9″W / 38.134083°N 122.426639°W (night);
Links
Public license information	Public file; LMS;
Webcast	Listen Live
Website	kdia.com

KDIA (1640 kHz) is a commercial AM radio station licensed to Vallejo, California, and serving the San Francisco Bay Area. It is owned by the Salem Media Group and broadcasts a Christian talk and teaching radio format. Salem also owns KFAX, which airs a separate schedule of Christian programming. The radio studios and offices are on Liberty Street in Fremont.

KDIA transmits 10,000 watts. By day, it is non-directional, using one of the KKSF towers in Richmond on San Francisco Bay. At night, it is directional, using a four-tower array on Noble Road in Vallejo.