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Icom IC-A24 Instruction Manual

Vhf air band transceiver
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See also: Service Manual , Instruction Manual
IC-A24-Nocl.qxd
04.9.1
5:50 PM
Page i
INSTRUCTION MANUAL
VHF AIR BAND TRANSCEIVER
iA24
iA6
This device complies with Part 15 of the FCC
Rules. Operation is subject to the condition
that this device does not cause harmful inter-
ference.

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Summary of Contents for Icom IC-A24

  • Page 1 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page i INSTRUCTION MANUAL VHF AIR BAND TRANSCEIVER iA24 This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful inter- ference.

  • Page 2: Safety Training Information

    The radio is transmitting This radio has been evaluated for compliance at the distance of 2.5 cm with the FCC RF exposure limits for “Occupational Use Only”. In addition, your Icom when “ ” appears on the function display. You can cause the radio to radio complies with the following Standards and Guidelines with regard to RF transmit by pressing the “PTT”...

  • Page 3: Foreword

    04.9.1 5:50 PM Page iii FOREWORD SUPPLIED ACCESSORIES Thank you for purchasing this Icom product. The IC-A24/A6 Accessories included with the transceiver: Qty. q Antenna ................1 VHF AIR BAND TRANSCEIVER is designed and built with w Belt clip ................1 Icom’s state of the art technology and craftsmanship.

  • Page 4: Precautions

    FCC caution: Changes or modifications to this transceiver, not ruined. expressly approved by Icom Inc., could void your authority to operate this transceiver under FCC regulations. (U.S.A. only) NEVER short the terminals of the battery pack. Also, cur- rent may flow into nearby metal objects, such as a necklace,...

  • Page 5: Table Of Contents

    (U.S.A. version only) I Panel description ..............1 I “TAG” channels ..............17 I Function display ..............5 6 VOR NAVIGATION (IC-A24 only) ........18 – 24 I VOR indications ..............18 2 ACCESSORY ATTACHMENT ..........7 I VOR functions ..............19 3 BASIC OPERATION ............

  • Page 6: Panel Description

    IC-A24-Nocl.qxd 04.9.1 7:02 PM Page 2 PANEL DESCRIPTION I Panel description IC-A24 IC-A6 Microphone Speaker...
  • Page 7 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 3 PANEL DESCRIPTION q BACKLIGHT SWITCH [LIGHT] (p. 11) u SQUELCH KEY [SQL• ] (p. 8) WX-ALERT ➥ Push [SQL• Turns the backlight for display and keypad ON or OFF. ], then rotate [DIAL] to se- WX-ALERT lect the squelch level.
  • Page 8 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 4 PANEL DESCRIPTION !1 CLEAR KEY [CLR• !6 ENTER KEY [ENT• ] (pgs. 8–17) ] (pgs. 8, 14) ➥ Push to turn to the frequency mode, when WX ➥ Push to enter the numeral input. Enters con- channel, 121.5 MHz, squelch level setting or...
  • Page 9 ] to change the FROM course indicator characteristics to “FROM” flag in the DVOR display in NAV band. (p. 19)* These functions available on the IC-A24 only. ➥ Corrects the deviation while using “FROM” flag. * Push , then push [4•...

  • Page 10: I Function Display

    RX INDICATOR (p. 9) Appears when receiving a signal or when the squelch opens. r DUPLEX INDICATOR (IC-A24 only) (p. 24) ➥“DUP” appears when the duplex function is activated in NAV mode. ➥“DUP” blinks while setting the duplex frequency.
  • Page 11 Page 7 PANEL DESCRIPTION i TAG CHANNEL INDICATOR (p. 17) !4 COURSE INDICATORS (IC-A24 only) (p. 19) ➥ Indicates where your aircraft is located on a VOR radial “ ” appears when the memory channel is set as a TAG channel.

  • Page 12: Accessory Attachment

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 8 ACCESSORY ATTACHMENT D Antenna D Belt clip CAUTION: DO NOT transmit without an antenna. Other- Conveniently attaches to your belt. wise the transceiver may be damaged. Attach the belt clip with the supplied screws as below.

  • Page 13: Basic Operation

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 9 BASIC OPERATION I Setting a frequency I Setting a squelch level ï Using keypad The transceiver has a noise squelch circuit to mute undesired q Push [PWR] for 2 sec. to turn power ON, then push noise while receiving no signal.

  • Page 14: I Receiving

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 10 BASIC OPERATION I Receiving I Transmitting q Push [PWR] to turn the power ON. CAUTION: Transmitting without an antenna may damage w Push [SQL• ], then rotate [DIAL] counterclock- WX-ALERT the transceiver. wise to select the squelch level 0.

  • Page 15: I Low Battery Indicator

    IC-A24-Nocl.qxd 04.9.1 7:03 PM Page 11 BASIC OPERATION I Low battery indicator D Deletes the stored recall channel q Push to select the deleting recall channel. w Push Low battery indicator appears , then push [CLR• ] for 2 sec. to delete it.

  • Page 16: I Setting Weather Alert Function

    A ringing in your ears may emergency frequency occur. If so, reduce the monitor level or discontinue use. The IC-A24 and IC-A6 can quickly access to the 121.5 MHz I Setting beep tone emergency frequency. This function can be activated even when the key lock function is in use.

  • Page 17: Memory Operation

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 13 MEMORY OPERATION I Memory channel selection I Transferring memory contents The transceiver has 200 memory channels for storage of often-used frequencies along with 6-character notes. This function transfers a memory channel’s contents into the q Push [MR•...

  • Page 18: I Programming A Memory Channel

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 14 MEMORY OPERATION I Programming a memory • EXAMPLE: Programming WX-05* into memory BANK 3/ memory channel 9. channel Push Push The transceiver has 200 (20 CH. × 10 BANK) memory chan- nels for storage of often-used frequencies.

  • Page 19: I Memory Names

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 15 MEMORY OPERATION I Memory names ï Programming memory names Character Character Key Character 1, Q, Z 2, A, B, C 3, D, E, F The memory channel can display a 6-character names in- stead of the programmed frequency.
  • Page 20 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 16 MEMORY OPERATION • EXAMPLE: Programming 125.000 MHz into memory BANK 1/ memory channel 17 with “AIR-23” as a comment. Push Push Push Push Push Push Push Push Push Push NOTE: Push [0• ], then rotate [DIAL] to select the BANK BANK number, if desired.

  • Page 21: Scan Operation

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 17 SCAN OPERATION I Scan types I COM band scan q Push [CLR•DEL] to select the frequency mode. The U.S.A. version has 3 scan types to suit your needs. The w Push [SQL• non-U.S.A. versions have 2 scan types.

  • Page 22: I Weather Channel Scan (U.s.a. Version Only)

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 18 SCAN OPERATION I Weather channel scan I “TAG” channel setting (U.S.A. version only) Memory and weather channels* can be specified to be skipped for the memory and weather channel* scans respec- q Push , then push [ENT•...

  • Page 23: Vor Navigation (Ic-A24 Only)

    DVOR MODE To-from flag Course indicator indicator Push [F] then [1 DVOR Push [F] then [4 CDI MODE General VOR equipment Function display of the IC-A24 Course indicator To-from flag indicator FROM To-from flag indicator Two-degree deviation Course marks indicator...

  • Page 24: I Vor Functions

    • When using the ‘TO’ flag and passing through the VOR station, When entering the NAV band, 108.000–117.975 MHz, the the ‘TO’ flag changes to the ‘FROM’ flag automatically. IC-A24 selects the DVOR mode automatically. • When turning power ON, the ‘FROM’ flag is selected automati- cally.

  • Page 25: I Flying To A Vor Station

    VOR station. • ‘Ω’ or ‘≈’ appears to indicate your aircraft is off course to the right The IC-A24 shows the deviation from a VOR station. or left, respectively. Correct your course until ‘Ω’ or ‘≈’ disap- pears.
  • Page 26 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 22 VOR NAVIGATION (IC-A24 ONLY) 330 340 310 320 123.65 Magnetic THE AIRCRAFT IS ON COURSE VORTAC north SEATTLE 116.8 Ch 115 SEA station 330 340 310 320 123.65 Magnetic THE AIRCRAFT IS OFF COURSE...

  • Page 27: I Entering A Desired Course

    I Crosschecking position q Select 2 VOR stations on your aeronautical chart. The IC-A24 shows not only the deviation from the VOR sta- w Push the keypad or rotate [DIAL] to set the frequency of tion but the deviation from the desired course.
  • Page 28 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 24 VOR NAVIGATION (IC-A24 ONLY) EXAMPLE: Entering the desired course bearing 65° to a VOR station. CROSSCHECKING POSITION 123.65 VORTAC VORTAC OLYMPIA SEATTLE 330 340 330 340 310 320 310 320 113.4 Ch 81 OLM 116.8 Ch 115 SEA...

  • Page 29: I Duplex Operation (U.s.a. Version Only)

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 25 VOR NAVIGATION (IC-A24 ONLY) I Duplex operation D Operating the duplex function q Set the desired frequency in NAV band. (U.S.A. version only) • NAV band frequency range: 108.00–117.975 MHz w Push , then push [6•...

  • Page 30: Battery Packs

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 26 BATTERY PACKS I Battery charging I Battery cautions CAUTION! NEVER Prior to using the transceiver for the first time, the battery insert battery pack/transceiver pack must be fully charged for optimum life and operation.

  • Page 31: I Optional Battery Case

    • When installing batteries, make sure they are all the same 8–12 hours only. brand, type and capacity. Also, do not mix new and old batteries together. IC-A24/A6 with at- tached battery pack • Keep battery contacts clean. It’s a good idea to clean bat- CP-12L (for 12 V) or tery terminals once a week.

  • Page 32: I Optional Battery Chargers

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 28 BATTERY PACKS I Optional battery chargers D Rapid charging with the BC-119N+AD-101 D Rapid charging with the BC-121N+AD-101 The optional BC-119N provides rapid charging of battery The optional BC-121N allows up to 6 battery packs to be packs.

  • Page 33: Cloning

    Page 29 CLONING Cloning allows you to quickly and easily transfer the NOTE: DO NOT transfer the data from IC-A24 to IC-A6, programmed data from one transceiver to another when the data contains the NAV band data. In such case, transceiver, or, data from PC to a transceiver using the cloning error may occur.

  • Page 34: Troubleshooting

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 30 TROUBLESHOOTING If your transceiver seems to be malfunctioning, please check the following points before sending it to a service center. PROBLEM POSSIBLE CAUSE SOLUTION REF. No power comes on. • The battery is exhausted.

  • Page 35: Specifications

    : Low level modulation WX 161.650 to 163.275* • Modulation limiting : 70 to 100% : IC-A24 only, IC-A6; 118.000 to 136.975 MHz • Audio harmonic distortion : Less than 10% (at60 % mod.) : U.S.A. version only. • Hum and noise ratio : More than 35 dB •...

  • Page 36: Options

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 32 OPTIONS D BATTERY CASE AND PACKS D BELT CLIPS • BP-208N • MB-103 BATTERY CASE BELT CLIP Battery case for 6 × AA (R6) Alkaline cells. The same as supplied with the transceiver. • BP-209N •...

  • Page 37: Quick Reference

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 33 QUICK REFERENCE Important operating instructions are summed up in this and the following page for your simple reference. By cutting along the line and folding on the dotted line, it will become a card sized operating guide which can easily be carried in a card case or wallet, etc.
  • Page 38 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 34 QUICK REFERENCE...

  • Page 39: Optional Headset Connection

    IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 35 OPTIONAL HEADSET CONNECTION D OPC-499 ( connection HEADSET ADAPTER) When using a headset, such as those from the David Clark Co. via the OPC-499 adapter the transceiver out- HEADSET ADAPTOR puts your transmitted voice to the headset for monitoring. See “I Side tone function “(p. 11) when setting the side tone level.
  • Page 40 IC-A24-Nocl.qxd 04.9.1 5:50 PM Page 36 A-6403D-1EX Printed in Japan 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan © 2004 Icom Inc.

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Ic-a6

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