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,---... INTRODUCTION Welcome to the world of sophisticated, state-of-the-art CB radio communications. YourUnidenPRO 520e represents the most advanced mobile radio ever designed for use in the Citizens Band Radio Service. It will operate onany of the 40AM frequencies authorizedby theDepartment of Communications. YourPRO 520e features a superheterodyne circuit with PHASELOCKEDLOOP techniques to assure precise frequency control.
CONTROLS ,. ANL Switch - You can select the Automatic Noise limiter to help reduce harsh background noise caused by a variety of interference sources. 2. Instant CH 9 Switch - Use this switch to override the main channel selector and instantly tune to the emergency channel 9. Switch back to return to normal 40 channel operation. 3. TX LED - An LED lights to indicate when the radio is transmitting. 4. Microphone - The operational mode of the CB is controlled by the push-to-talk switch on the mic.
SPECIFICATIONS Channels: Frequency Range: Frequency Control: Frequency Tolerance: Operating Temp.: Microphone: Input Voltage: Current Drain: Size: Weight: Antenna Connector: LED Meter: 40 AM 26.965 to 27.405 MHz Phase Locked Loop (PLL}synthesizer + 0.005% - 30°C to + 50°C Plug in DIN type: Electret 13.8 VDC nom. (+ or - ground} TX:full mod., 1.7A RX.:with max audio output, 1.7A 4 '/l' W x 6 3/4"0 x 1 3/8"H 1 lb. 10 oz.
~ " TROUBLE SHOOTING If your PRO 520e is not performing up to your expectations, please try the following troubleshooting steps after reading this manual. If you determine that service is necessary, contact your local dealer or pack the unit in its original carton and send it along with a brief, concise description of the problem, your name, address, phone number, and a copy of the original purchase receipt to the address listed in the warranty. TROUBLE CHECK Unit will not turn on. No power 1.
IN STALtATI ON ",V,; Plan the location of the radio and microphone bracket before starting installation. Selecta locationthat is convenient for operation and does not interfere with the driver or passenger in the vehicle. The radio should be securely fastened to a solid surface using the mounting bracket and self-tapping screws which are provided. although the efficiency is less than a full quarter wave whip antenna.
