Waller County (800Mhz) Sheriff Office Primary, Law Enforcement Dispatch for Waller County, Texas. This feed is captured from the Hempstead, TX tower site of the TXWARN Motorola Type II Smartzone Trunking System (800Mhz Rebanded) by a Uniden BCT8 Scanner with outdoor antenna, at my Amateur Radio Station in Monaville, TX. Callsign KF5JMD