iiiSUPPLIED ACCESSORIESq Antenna ………………………………………………………1w Belt clip (MB-98) …………………………………………1 sete Battery spacer ………………………………………………1r Hand strap …………………………………………………1t Battery pack* (BP-206) ……………………………………1yAC adaptor*(BC-149A/D) …………………………………1(The shape of the BC-149A and BC-149D are different.)*Not supplied with some versions.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. The IC-R20 receives RF energy from 0.150 MHz* to 3304.999 MHzand converts it into audio frequency (AF) energy which in turnactuates a loudspeaker to create sound waves. AF energy isin the range of 20 to 20,000 Hz.*kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbreviationof megahertz or 1,000,000 hertz, where hertz is a unit of frequency.OPERATING NOTESThe IC-R20 may receive its own oscillated frequency, result-ing in no reception or only noise reception, on some frequen-cies.The IC-R20 may receive interference from extremely strongsignals on different frequencies or when using an externalhigh-gain antenna.q w eyrt
