Beyond the Basics

highway patrol alerts

Most highway patrol vehicles today come equipped with a secondary radio system known as a MOBILE EXTENDER or VEHICULAR REPEATER. Whenever the dispatcher transmits to any vehicle in the district, the mobile extender in every car within the district is activated. Using a constant PRIORITY CHECK of specific frequencies in each state, your scanner recognizes and alerts you to transmissions from “mobile extender” radios, as well as from car-to-car, aircraft to-car and other special-purpose frequencies. You receive an audible tone and visual alert (flashing light) whenever you are within approximately three miles of highway patrol or state police units using a mobile extender unit.

highway patrol/local police scanning

Highway patrol and local police frequencies are preprogrammed on a state-by-state basis. When highway patrol scanning, the highway warning alert is activated.

selecting the state

1.Confirm if HIWGHWAY, PRIVATE, or POLICE appears on the display. If not, press PVT.

2.Press STATE to select the state you are operating in. See “State Code Order” table on the next page.

3.To step forward through the states (A - W), press STATE and then repeatedly press e within 3 seconds. To step backward through the states (W - A), press STATE then repeatedly press d within three seconds.

4.To scroll rapidly, hold down e or d. The scanner automatically scans the highway frequencies and HIGHWAY appears. The highway patrol priority function is turned on by default. The scanner beeps and the

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Radio Shack 20-426 manual Highway patrol alerts, Highway patrol/local police scanning, Selecting the state