Wikipedia
KLSQ ( 870 AM) is a commercial radio station broadcasting a Spanish Variety format. Licensed to Whitney, Nevada, USA, it primarily serves the Las Vegas area. The station is currently owned by KLSQ-AM License Corporation and features programming from Univision Radio.
KLSQ began as KROL in 1986. KROL was founded by "Laughlin Roughrider Broadcasting" and operated from two tower sites. A three tower operation was built in Laughlin for a 10,000 watt day and 1,000 watt night operation, using two different, three-tower directional antenna system. The other site was near Henderson, NV and was the KROL experimental synchronous transmitter using a non directional antenna by day and a three-tower directional system by night. After the 840 AM went on in the area, measurements were made showing that a power increase would not cause prohibited overlap with KROL on 870. This allowed an increase to 5,000 watts days (still at 500 watts nights).
Both sites used diesel generators to make all of the power to broadcast.
The station was sold to Million Dollar Broadcasting and changed call letters to KOWA. The slogo was "The Cow".
Heftel Broadcasting bought the station in 1995 and changed to a format of Spanish hits.
Management at HBC were concerned that the bulk of population covered by the station was from the second transmitter in the Las Vegas area. This coverage was licensed as a secondary authorization, and was subject to cancellation with little or no prior notice. David Stewart at HBC Engineering found a way to make the northern signal the main (and only site). The city of license was changed from Laughlin to Whitney (which combined some unincorporated Clark County with the former village of East Las Vegas). The former main site in Laughlin was parted out. The towers are used by other area stations, including AMs on 1000, AM on 1490, and at one time the analog operation of ch43 KMCC (TV). The system was redesigned for better pattern bandwidth by Matt Folkert and Ron Rackley at du Treil, Lundin & Rackley in Sarasota, FL.