Icom IC-A5 Duplex operation, Programming a duplex frequency, Operating the duplex function

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VOR NAVIGATION

6 VOR NAVIGATION

■Duplex operation

(U.S.A. version only)

The duplex function allows you to call a ﬂight service station while receiving a VOR station. The duplex function requires frequency programming for the flight service station in ad- vance.

◊Programming a duplex frequency

qPush [CLR] to select frequency mode.

wSet a NAV band frequency using the tuning dial or keypad.

• NAV band frequency range: 108.00–117.975 MHz

ePush , then [5 (DUP-W)].

• “DUP” ﬂashes and transmit frequency appears.

rSet the frequency of the ﬂight service station using the tun- ing dial or keypad. When using the tuning dial, push [ENT] after setting a frequency.

• The displayed frequency returns to the NAV band frequency.

◊Operating the duplex function

qSet the desired frequency in NAV band.

• NAV band frequency range: 108.00–117.975 MHz

wPush , then [6 (DUP)] to turn the duplex function ON.

• “DUP” appears on the function display.

ePush and hold [PTT] to transmit at the pre-programmed

transmit frequency.

rRelease [PTT] to return to receive.

tPush , then [6 (DUP)] to cancel the function.

A duplex frequency can be programmed into each mem- ory channel independently. Set a duplex frequency before programming the memory channel, if desired. The duplex ON/OFF setting can also be programmed into a memory channel.

EXAMPLE: Programming 123.65 MHz as the transmit frequency in the duplex function.

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Contents IA23 IA5 Word Definition RwarningSupplied Accessories Accessories included with the transceiver QtyTable of Contents Accessory Attachment AntennaBelt clip Conveniently attaches to your beltPanel Description Panel descriptionRMIC/SP TANT UUP/DOWNPTT Switch PTT p Tuning Dial Dial pAntenna Connector ANT Power Switch PWR1ANL KEY ANL REC 2BANK KEY Bank Play3FUNCTION KEY F 5ENTER KEY Entwx6DIGIT Keys Function display COM Function display COM/NAV 4COURSE Deviation Needles IC-A23 only pSetting a frequency Accessing 121.5 MHz emer- gency frequencyBasic Operation DIAL↔ Y/Z trade functionSetting squelch level Selecting a weather channelSide tone function Beep toneLow battery indicator REC/PLAY the signals /messagesLock function Display backlightingReceiving When a signal is received on the set frequencyTransmitting Memory Operation Transferring memory contentsMemory channel selection Programming a memory channel Push , then push MR MWRotate the Dial to select the desired memory channel number Example Programming WX-05* into memory BankMemory names Clearing memory contentsProgramming memory names ENT Scan Operation Scan typesCOM band scan Memory scanWeather channel scan TAG channelsVOR indicators COM Band Dvor ModeCDI Mode VOR Navigation IC-A23 onlyTo select CDI mode To select Dvor modeVOR functions ‘TO’ or ‘FROM’ ﬂag selectionFlying to a VOR station VOR Indicator NoteTo exit CDI mode, push , then 1 Dvor Magnetic north Aircraft is on CourseAircraft is OFF Course Crosschecking position Entering a desired courseAbss Function Crosschecking Position Programming a duplex frequency Duplex operationOperating the duplex function Battery Packs Charging precautionsBattery pack charging Rapid charging with the BC-119Rapid charging with the BC-119 Regular charging Charging period 15 hoursAbout the battery pack Battery pack CautionBattery pack life Operating periodCloning using PC Cloning errorCloning Transceiver to transceiver cloningTroubleshooting Problem Possible Cause SolutionSpecifications DGeneralDTransmitter DReceiverOptions Battery packsOther options PTT switch OPC-967IC-A23 IC-A5Quick Reference Operation Guide Kamihigashi, Hirano-ku, Osaka 547-0002 Japan