Icom IC-R6 Instruction Manual

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Icom IC-R6 Instruction Manual Manual pdf 4 page image

iiiNew2001FCC INFORMATION• FOR CLASS B UNINTENTIONAL RADIATORS:This equipment has been tested and found to comply withthe limits for a Class B digital device, pursuant to part 15 ofthe FCC Rules. These limits are designed to provide reason-able protection against harmful interference in a residentialinstallation. This equipment generates, uses and can radi-ate radio frequency energy and, if not installed and used inaccordance with the instructions, may cause harmful inter-ference to radio communications. However, there is no guar-antee that interference will not occur in a particular instal-lation. If this equipment does cause harmful interference toradio or television reception, which can be determined byturning the equipment off and on, the user is encouraged totry to correct the interference by one or more of the followingmeasures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment andreceiver.• Connect the equipment into an outlet on a circuit differ-ent from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV techni-cian for help.OPERATING THEORYElectromagnetic radiation, which has frequencies of20,000 Hz (20 kHz*) and above, is called radio frequency(RF) energy because, it is useful in radio transmissions. TheIC-R6 receives RF energy from 0.100 MHz* to 1309.995MHz and converts it into audio frequency (AF) energy whichin turn actuates a loudspeaker to create sound waves.AF energy is in the range of 20 to 20,000 Hz.* kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbrevi-ation of megahertz or 1,000,000 hertz, where hertz is a unit of fre-quency.OPERATING NOTESThe IC-R6 may receive its own oscillated frequency, result-ing in no reception or only noise reception, on some fre-quencies.The IC-R6 may receive interference from extremely strongsignals on different frequencies or when using an externalhigh-gain antenna.CAUTION: Changes or modifications to this device, notexpressly approved by Icom Inc., could void your authorityto operate this device under FCC regulations.