ICOM orporated IC-703 HF / VHF Amateur Transceiver User Manual
ICOM Incorporated HF / VHF Amateur Transceiver IC 703 INSTRUCTION MANUAL ENGLI
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![iFOREWORDThank We understand that you have a choice of manydifferent radios in the market place. We want to take acouple of moments of your time to thank you for mak-ing the IC-703 your radio of choice, and hope youagree with Icom’s philosophy of “technology first.”Many hours of research and development went intothe design of your IC-703.FEATURES❍DSP features (AF DSP; UT-106 DSP UNITrequiredsome version)❍All mode capability covering 160–6 m ❍9.0–15.87 V operation ❍Compact with detachable front panel❍±0.5 ppm of high frequency stability❍Built in antenna tuner❍Simple band scope functionIMPORTANTREAD THIS INSTRUCTION MANUALCAREFULLY before attempting to operate thetransceiver.SAVE THIS INSTRUCTION MANUAL. Thismanual contains important safety and operating in-structions for the IC-703.EXPLICIT DEFINITIONSRWARNING RF EXPOSURE! This device emitsRadio Frequency (RF) energy. Extreme caution should beobserved when operating this device. If you have anyquestions regarding RF exposure and safety standardsplease refer to the Federal Communications CommissionOffice of Engineering and Technology’s report on Evalu-ating Compliance with FCC Guidelines for Human RadioFrequency Electromagnetic Fields (OET Bulletin 65).RWARNING HIGH VOLTAGE! NEVER attach anantenna or internal antenna connector during transmis-sion. This may result in an electrical shock or burn.RNEVER apply AC to the [DC13.8V] receptacle on thetransceiver rear panel. This could cause a fire or damagethe transceiver.RNEVER apply more than 16 V DC, such as a 24 Vbattery, to the [DC13.8V] receptacle on the transceiverrear panel. This could cause a fire or damage the trans-ceiver.RNEVER let metal, wire or other objects touch any in-ternal part or connectors on the rear panel of the trans-ceiver. This may result in an electric shock.NEVER expose the transceiver to rain, snow or any liquids.AVOID using or placing the transceiver in areas with tem-peratures below –10°C (+14°F) or above +60°C (+140°F).Be aware that temperatures on a vehicle’s dashboard canexceed 80°C (+176°F), resulting in permanent damage tothe transceiver if left there for extended periods.AVOID placing the transceiver in excessively dusty envi-ronments or in direct sunlight.AVOID placing the transceiver against walls or puttinganything on top of the transceiver. This will obstruct heatdissipation.Place unit in a secure place to avoid inadvertent use bychildren.During mobile operation, DO NOT operate the transceiverwithout running the vehicle’s engine. When the trans-ceiver’s power is ON and your vehicle’s engine is OFF,the vehicle’s battery will soon become exhausted.Make sure the transceiver power is OFF before startingthe vehicle. This will avoid possible damage to the trans-ceiver by ignition voltage spikes.During maritime mobile operation, keep the transceiverand microphone as far away as possible from the magneticnavigation compass to prevent erroneous indications.BE CAREFUL! The rear panel will become hot when op-erating the transceiver continuously for long periods.BE CAREFUL! If a linear amplifier is connected, set thetransceiver’s RF output power to less than the linear am-plifier’s maximum input level, otherwise, the linear ampli-fier will be damaged.Use Icom microphones only (supplied or optional). Othermanufacturer’s microphones have different pin assign-ments, and connection to the IC-703 may damage thetransceiver.Beat signals may be heard on some frequencies.These will occur as a result of circuit construction.For U.S.A. onlyCaution: Changes or modifications to this transceiver, notexpressly approved by Icom Inc., could void your authorityto operate this transceiver under FCC regulations.PRECAUTIONWORD DEFINITIONRWARNING Personal injury, fire hazard or electricshock may occur.CAUTION Equipment damage may occur.NOTEIf disregarded, inconvenience only. Norisk or personal injury, fire or electricshock.](https://usermanual.wiki/ICOM-orporated/IC-703/User-Guide-311257-Page-2.png)