29REPEATER OPERATION4■ GeneralRepeaters allow you to extend the operational range of yourradio because a repeater has much higher output power thanthe typical transceiver.Normally, a repeater has independent frequencies for eachreceiver and transmitter.A subaudible tone may also be required to access a repeater.Reference amateur radio handbooks and local ham maga-zines for details of local repeaters such as repeater input/out-put frequencies and locations.• Repeater operation flow chart• The IC-2820H USA version has the auto repeater function. Thus thesteps 3 and 4 may not be necessary, depending on the setting.• Repeater settings can be stored into a memory channel.Step 3:Set the duplex (shift) direction (– duplex or +duplex).- Set the offset frequency (amount of shift), if required.Step 4:Set the subaudible tone (repeater tone) encoder function ON.- Set the subaudible tone frequency, if required.Step 1:Set the desired band to operate the repeater.Step 2:Set the desired receive frequency (repeater output frequency).Repeater example;Receives the 444.540 MHz signaland the detected audio signals aretransmitted on 449.540 MHz simul-taneously.Station A:Tx: 444.540 MHzRx: 449.540 MHzStation B:Tx: 444.540 MHzRx: 449.540 MHz
