Assessments - 6, GPA: 4
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WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIO TELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND FEDERAL LAW. FOREWORD Thank you for purchasing this The IC-R20 COMMUNICATIONS RECEIVER is designed and built with Icom’s superior technology and craftsmanship. product should provide you with years We want to take a couple of moments of your for making your IC-R20 your radio of choice, agree with Icom’s philosophy of “technology first.” Many hours of research and development went into the design of D DDFEATURES . Covers 0.150–3304.999 MHz* wide frequency range *Some frequency bands are inhibited according to version . External power supply operation . 1250 memory channels* with 26 banks available *200 auto write and 50 scan edge channels are included. . Built-in bar-antenna . Dualwatch operation IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the receiver. SAVE THIS INSTRUCTION MANUAL— This instruction manual contains important operating the IC-R20. EXPLICIT DEFINITIONS WORD DEFINITION R WARNING! Personal injury, fire hazard or electric shock may occur. CAUTION Equipment damage may occur. NOTE Recommended for optimum use. No risk of personal injury, fire or electric shock. Versions of the IC-R20 which display the “CE” symbol on the serial number seal, comply with the essential requirements of the European Radio and Telecommunication Terminal Directive 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed. Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries. PRECAUTION RWARNING! NEVER operate the receiver with an earphone, headphones or other volume levels. Hearing experts advise high volume operation. If you experience ears, reduce the volume level or discontinue RWARNING! NEVER connect the receiver directly to an AC outlet. This may pose a fire hazard or result in an electric shock. RWARNING! NEVER operate the receiver while driving a vehicle. Safety driving requires your full attention—less may result in an accident. RWARNING! NEVER throw a battery cell or battery pack into a fire since as internal battery gas can cause an explosion. RWARNING! NEVER disassemble the battery pack. If the battery cell’s internal material (electrolyte liquid) gets into your eyes, wash your eyes with water and obtain treatment from an eye doctor immediately. NEVER connect the receiver directly to a power source of more than 6 V DC. This will damage the receiver. NEVER connect the receiver to a power source using reverse polarity. This will damage the receiver. NEVER expose the receiver to rain, The receiver may be damaged. NEVER operate or touch the receiver with This may result in an electric shock or damage NEVER solder the battery cell. This may damage the battery. AVOID using or placing the receiver in direct sunlight or areas with temperatures below –10°C (+14° F) or above +60°C (+140° F). AVOID the use of chemical agents such as benzine or alcohol in cleaning, as they can damage the receiver’s surfaces. Even when the receiver power is OFF, a slight current still flows in the circuits. Remove the battery pack or batteries from the receiver while not using it for a long time. Otherwise, the installed battery pack or batteries will become exhausted, and will need to be recharged. RESPECT other people’s privacy. Information overheard but not intended for you cannot lawfully be used in any way. For U.S.A. only CAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. SUPPLIED q w e y r t qAntenna ………………………………………………………1 wBelt clip (MB-98) …………………………………………1 set eBattery spacer ………………………………………………1 rHand strap …………………………………………………1 tBattery pack* (BP-206) ……………………………………1 yAC adaptor*(BC-149A/D) …………………………………1 (The shape of the BC-149A and BC-149D are different.) *Not supplied with some versions. OPERATING THEORY Electromagnetic radiation 20,000 Hz (20 kHz*) and above is called radio energy because it is useful in radio The ICR20 receives RF energy from 0.150 MHz* to 3304.999 MHz and converts it into audio frequency actuates a loudspeaker to create sound AF energy is in the range of 20 to 20,000 Hz. *kHz is an abbreviation of kilohertz or 1000 hertz, of megahertz or 1,000,000 hertz, where hertz is a OPERATING NOTES The IC-R20 may receive its own oscillated frequency, resulting in no reception or only noise reception, on some frequencies. The IC-R20 may receive interference from extremely strong signals on different frequencies or when using an external high-gain antenna. TABLE OF CONTENTS FOREWORD ................................................... i IMPORTANT ................................................... i EXPLICIT DEFINITIONS ................................ i PRECAUTION ................................................ ii ...