This is the KTNQ History section of
The Broadcast Archive

Maintained by: Barry Mishkind - The Eclectic Engineer
Last update: 2/27/15

A Pictorial Tour of KTNQ/KEIB

The five towers of KTNQ were surrounded by a new business complex, and the towers were actually "built over" ... enclosed within the buildings.

From 1997 to 2005, KXTA shared this site with KTNQ, diplexing two 50 kW stations into this unique antenna. KXTA became KTLK in 2005, and then KEIB in January 1014.

Here are some images and recollections from the folks who worked at the site.

KTNQ/KEIB array in
the City of Industry business


Tower 5 Doghouse at 
roof level.
Burt Weiner says: They have an interesting way of controlling the tower flashers. There is an infra-red emitter on the side of the well's wall that shoots across about 5 or so feet to an infra-red receptor on the side of the tower. This keys both beacons on each tower. All of the emitters are in parallel and fed from a keyed 28 Volt source back in the transmitter room. All of the beacons, two on each tower, flash in synch. They system is designed so that it takes 28 Volts to turn the beacons off so that if it should fail the beacon/s will stay on.
Looking down at 
the base of tower 5
Burt Weiner says: I'm guessing they are about 15 feet square and about 25' deep. They are concrete walls and are lined with what looks like multiple layers of chicken wire for a screen to minimize fields inside the buildings. This has had an interesting affect on the impedance of the towers. There are ladders that you can climb down inside the wells to get to the bases. This is not work for the claustrophobic! KXTA in Los Angeles. Photo montage of their conversion to 50KW.