Instruction Manual
Page 2
... the FCC RF exposure limits for the Measurement of the time can cause the radio to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Recommended Practice for "Occupational Use Only". Electromagnetic Interference/Compatibility During transmissions, your belt, etc., to Radio Frequency Elec- This radio has been evaluated for ex- SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. Use...
... the FCC RF exposure limits for the Measurement of the time can cause the radio to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Recommended Practice for "Occupational Use Only". Electromagnetic Interference/Compatibility During transmissions, your belt, etc., to Radio Frequency Elec- This radio has been evaluated for ex- SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. Use...
Instruction Manual
Page 3
... hazard or electric shock RWARNING may differ depending on version. IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. This in- struction manual contains important operating instructions for purchasing this Icom product. No risk of trouble-free operation. CAUTION Equipment damage may occur. The IC-A24/A6 VHF AIR BAND TRANSCEIVER is designed and built with years of personal injury, fire or electric...
... hazard or electric shock RWARNING may differ depending on version. IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. This in- struction manual contains important operating instructions for purchasing this Icom product. No risk of trouble-free operation. CAUTION Equipment damage may occur. The IC-A24/A6 VHF AIR BAND TRANSCEIVER is designed and built with years of personal injury, fire or electric...
Instruction Manual
Page 4
... or to , or touching exposed parts of more than 11.5 V DC. power source of the body, especially the face or eyes, while transmitting. Otherwise, the battery pack or installed dry cell batteries will not give any radio equipment containing a transmitter. R WARNING! If you experience a ringing in direct sunlight or headset or other countries. Remove the battery pack or case from the...
... or to , or touching exposed parts of more than 11.5 V DC. power source of the body, especially the face or eyes, while transmitting. Otherwise, the battery pack or installed dry cell batteries will not give any radio equipment containing a transmitter. R WARNING! If you experience a ringing in direct sunlight or headset or other countries. Remove the battery pack or case from the...
Instruction Manual
Page 5
... Setting a frequency 8 I Setting a squelch level 8 I Selecting a weather channel 8 I Receiving 9 I Transmitting 9 I ANL function 9 I Low battery indicator 10 I Recall function 10 I Setting weather alert function 11 I Accessing 121.5 MHz emergency frequency 11 I Lock function 11 I Side tone function 11 I Setting beep tone 11 I Backlighting 11 4 MEMORY OPERATION 12 - 15 I Memory channel selection 12 I Transferring memory contents 12 I Programming a memory channel 13 I Memory names 14 I Clearing the memory contents 14 5 SCAN OPERATION 16 - 17 I Scan types 16 I COM band scan...
... Setting a frequency 8 I Setting a squelch level 8 I Selecting a weather channel 8 I Receiving 9 I Transmitting 9 I ANL function 9 I Low battery indicator 10 I Recall function 10 I Setting weather alert function 11 I Accessing 121.5 MHz emergency frequency 11 I Lock function 11 I Side tone function 11 I Setting beep tone 11 I Backlighting 11 4 MEMORY OPERATION 12 - 15 I Memory channel selection 12 I Transferring memory contents 12 I Programming a memory channel 13 I Memory names 14 I Clearing the memory contents 14 5 SCAN OPERATION 16 - 17 I Scan types 16 I COM band scan...
Instruction Manual
Page 7
...-ALERT] to set the squelch level and beep tone level. r TUNING DIAL [DIAL] (pgs. 8-12) ➥ Rotate [DIAL] to select the desired frequency, WX channel number, BANK number and memory channel. ➥Rotate [DIAL] to turn the power ON or OFF. ➥While pushing and holding [MR•MW], push [PWR] to receive. • " " appears on the function display while transmitting. t ANTENNA CONNECTOR [ANT] (p. 7) Connects the supplied antenna...
...-ALERT] to set the squelch level and beep tone level. r TUNING DIAL [DIAL] (pgs. 8-12) ➥ Rotate [DIAL] to select the desired frequency, WX channel number, BANK number and memory channel. ➥Rotate [DIAL] to turn the power ON or OFF. ➥While pushing and holding [MR•MW], push [PWR] to receive. • " " appears on the function display while transmitting. t ANTENNA CONNECTOR [ANT] (p. 7) Connects the supplied antenna...
Instruction Manual
Page 8
to select the 121.5 MHz emergency frequency. • DC POWER CONNECTION IC-A24/A6 CP-20 (for 11 24 V) (optional) !4 DC POWER JACK Connect the AC adapter or optional cable to charge the battery pack or to operate by external power supply. (see right illustration) !5 MEMORY MODE KEY [MR•MW] (pgs. 12-15) ➥ Push to call the memory channel mode. ➥ Push , then push [MR•...
to select the 121.5 MHz emergency frequency. • DC POWER CONNECTION IC-A24/A6 CP-20 (for 11 24 V) (optional) !4 DC POWER JACK Connect the AC adapter or optional cable to charge the battery pack or to operate by external power supply. (see right illustration) !5 MEMORY MODE KEY [MR•MW] (pgs. 12-15) ➥ Push to call the memory channel mode. ➥ Push , then push [MR•...
Instruction Manual
Page 9
... NAV band for U.S.A. version only. (p. 24)*1 Push , then push [7• ] to turn the key lock function ON and OFF. (p. 11) Push , then push [8•BEEP] to turn the beep tone setting mode ON (p. 11). • Adjustable level; 0 to 9 Push , then push [9•TAG] to set the displayed memory or weather channel as follows: Push , then push [0•BANK] to select the memory BANK number to...
... NAV band for U.S.A. version only. (p. 24)*1 Push , then push [7• ] to turn the key lock function ON and OFF. (p. 11) Push , then push [8•BEEP] to turn the beep tone setting mode ON (p. 11). • Adjustable level; 0 to 9 Push , then push [9•TAG] to set the displayed memory or weather channel as follows: Push , then push [0•BANK] to select the memory BANK number to...
Instruction Manual
Page 10
... receiving a signal or when the squelch opens. The attached battery pack requires recharging. ➥ Appears and flashes when battery replacement is nearing exhaustion. r DUPLEX INDICATOR (IC-A24 only) (p. 24) ➥"DUP" appears when the duplex function is in NAV mode. ➥"DUP" blinks while setting the duplex frequency. t LOW BATTERY INDICATOR (p. 10) ➥ Appears when the battery is necessary. y LOCK INDICATOR (p. 11) Appears while the lock...
... receiving a signal or when the squelch opens. The attached battery pack requires recharging. ➥ Appears and flashes when battery replacement is nearing exhaustion. r DUPLEX INDICATOR (IC-A24 only) (p. 24) ➥"DUP" appears when the duplex function is in NAV mode. ➥"DUP" blinks while setting the duplex frequency. t LOW BATTERY INDICATOR (p. 10) ➥ Appears when the battery is necessary. y LOCK INDICATOR (p. 11) Appears while the lock...
Instruction Manual
Page 13
... the squelch is open. 3 BASIC OPERATION I Setting a frequency I Selecting a weather channel (U.S.A. to turn power ON, then push [CLR•DEL] to mute undesired 2 q Push [PWR] for flight planning. I Setting a squelch level ï Using keypad The transceiver has a noise squelch circuit to select the frequency mode when memory CH number or WX CH number appears on the function dis- channel mode. • "WX--" and previously se- version only) [EXAMPLE] • 111.225 MHz: Push...
... the squelch is open. 3 BASIC OPERATION I Setting a frequency I Selecting a weather channel (U.S.A. to turn power ON, then push [CLR•DEL] to mute undesired 2 q Push [PWR] for flight planning. I Setting a squelch level ï Using keypad The transceiver has a noise squelch circuit to select the frequency mode when memory CH number or WX CH number appears on the function dis- channel mode. • "WX--" and previously se- version only) [EXAMPLE] • 111.225 MHz: Push...
Instruction Manual
Page 14
... reduces noise components such as that caused by engine ignition systems while receiving. • Push [ANL•SCAN] to turn the power ON. q Set the desired frequency in COM band using [DIAL] or keypad. NOTE: To prevent interference, listen on the set frequency: • " " indicator appears. • Squelch opens and audio is ON. 9 This may not open for weak signals. r Release [PTT] to return to adjust the audio level...
... reduces noise components such as that caused by engine ignition systems while receiving. • Push [ANL•SCAN] to turn the power ON. q Set the desired frequency in COM band using [DIAL] or keypad. NOTE: To prevent interference, listen on the set frequency: • " " indicator appears. • Squelch opens and audio is ON. 9 This may not open for weak signals. r Release [PTT] to return to adjust the audio level...
Instruction Manual
Page 16
... transmit mode ON. I Backlighting Push [LIGHT] to adjust the monitor- I Setting beep tone vated even when the key lock function is in your transmitted voice to turns the weather alert function ON (Indicates " ")/OFF (Indicates " "). level. q Push [121.5] for long period. I Side tone function An NOAA broadcast station transmits a weather alert tone be acti- level. The previously selected (used) weather channel is op- I Accessing 121.5 MHz emergency frequency When using this function (OPC-499 HEADSET ADAPTER and headset...
... transmit mode ON. I Backlighting Push [LIGHT] to adjust the monitor- I Setting beep tone vated even when the key lock function is in your transmitted voice to turns the weather alert function ON (Indicates " ")/OFF (Indicates " "). level. q Push [121.5] for long period. I Side tone function An NOAA broadcast station transmits a weather alert tone be acti- level. The previously selected (used) weather channel is op- I Accessing 121.5 MHz emergency frequency When using this function (OPC-499 HEADSET ADAPTER and headset...
Instruction Manual
Page 18
... frequency mode, if necessary. e Push , then push [MR•MW] to program the contents into memory BANK 3/ memory channel 9. w Select the desired frequency. • Push , then push [ENT•WX] to the frequency mode. *Weather channel: U.S.A. t Push [ENT•WX] to program the information into the channel and return to select a weather channel.* • Set the desired frequency or weather channel* using [DIAL] or keypad. 4 MEMORY OPERATION I Programming a memory channel The transceiver...
... frequency mode, if necessary. e Push , then push [MR•MW] to program the contents into memory BANK 3/ memory channel 9. w Select the desired frequency. • Push , then push [ENT•WX] to the frequency mode. *Weather channel: U.S.A. t Push [ENT•WX] to program the information into the channel and return to select a weather channel.* • Set the desired frequency or weather channel* using [DIAL] or keypad. 4 MEMORY OPERATION I Programming a memory channel The transceiver...
Instruction Manual
Page 21
... the point COM BAND SCAN where noise is received, the scan pauses until it disappears. • To change the scanning direction, rotate [DIAL]. w Push [SQL•WX-ALERT] to set the squelch level to suit your needs. Weather channels are available for checking often-used channels and bypassing usually busy channels such as control-tower frequencies. Jump I COM band scan The U.S.A. r To stop the scan, push [CLR•DEL]. 5 Scan COM band. Used for the U.S.A. version...
... the point COM BAND SCAN where noise is received, the scan pauses until it disappears. • To change the scanning direction, rotate [DIAL]. w Push [SQL•WX-ALERT] to set the squelch level to suit your needs. Weather channels are available for checking often-used channels and bypassing usually busy channels such as control-tower frequencies. Jump I COM band scan The U.S.A. r To stop the scan, push [CLR•DEL]. 5 Scan COM band. Used for the U.S.A. version...
Instruction Manual
Page 25
... or the frequency is not set correctly at a localizer signal is selected, the operating frequency cannot be received. q Select a VOR station on the function display as shown below when 6 • The course indicator shows '- -' when either aircraft is too far away from the...to exit the CDI mode. Each arrow represents a two-degree deviation. version only IC-A24's VOR and CDI Navigation features are supplemental aids to set the operating frequency, select the DVOR mode in advance. NOTE: When the CDI mode is received. Correct your aeronautical chart and push the keypad...
... or the frequency is not set correctly at a localizer signal is selected, the operating frequency cannot be received. q Select a VOR station on the function display as shown below when 6 • The course indicator shows '- -' when either aircraft is too far away from the...to exit the CDI mode. Each arrow represents a two-degree deviation. version only IC-A24's VOR and CDI Navigation features are supplemental aids to set the operating frequency, select the DVOR mode in advance. NOTE: When the CDI mode is received. Correct your aeronautical chart and push the keypad...
Instruction Manual
Page 29
... the NAV band frequency. w Set a NAV band frequency using the tuning dial or keypad. • NAV band frequency range: 108.00-117.975 MHz e Push , then push [5•DUP-W]. • "DUP" flashes and transmit frequency appears. NOTE: A duplex frequency can also be programmed into a memory channel. • The displayed frequency returns to call a flight service station while receiving a VOR station. 6 VOR NAVIGATION (IC-A24 ONLY) I Duplex operation (U.S.A. q Push [CLR...
... the NAV band frequency. w Set a NAV band frequency using the tuning dial or keypad. • NAV band frequency range: 108.00-117.975 MHz e Push , then push [5•DUP-W]. • "DUP" flashes and transmit frequency appears. NOTE: A duplex frequency can also be programmed into a memory channel. • The displayed frequency returns to call a flight service station while receiving a VOR station. 6 VOR NAVIGATION (IC-A24 ONLY) I Duplex operation (U.S.A. q Push [CLR...
Instruction Manual
Page 30
... retain a charge (or very little), new battery pack must be fully charged for optimum life and operation. NEVER incinerate used battery packs. Such a connection will damage the transceiver. Turn the transceiver power OFF when charging the battery pack. Otherwise, the battery pack may cause an explosion. NEVER short the terminals of the battery pack. rent may result in handbags, etc. Then, fully charge the battery pack again. The charger is...
... retain a charge (or very little), new battery pack must be fully charged for optimum life and operation. NEVER incinerate used battery packs. Such a connection will damage the transceiver. Turn the transceiver power OFF when charging the battery pack. Otherwise, the battery pack may cause an explosion. NEVER short the terminals of the battery pack. rent may result in handbags, etc. Then, fully charge the battery pack again. The charger is...
Instruction Manual
Page 33
... transfer the data from IC-A24 to IC-A6, programmed data from one transceiver to exit cloning mode. 28 OPC-478U (USB type) CLONING CABLE. D Transceiver to and from PC to a transceiver using the optional CS-A24 CLONING to enter cloning mode (for operating the master transceiver only). • "CLONE" appears and the transceivers enter the clone standby condition. This will cause a cloning error. r When cloning is finished, turn power OFF, then ON again...
... transfer the data from IC-A24 to IC-A6, programmed data from one transceiver to exit cloning mode. 28 OPC-478U (USB type) CLONING CABLE. D Transceiver to and from PC to a transceiver using the optional CS-A24 CLONING to enter cloning mode (for operating the master transceiver only). • "CLONE" appears and the transceivers enter the clone standby condition. This will cause a cloning error. r When cloning is finished, turn power OFF, then ON again...
Instruction Manual
Page 34
...; The battery is exhausted. • Change channels. • Recharge the battery pack. p. 8 p. 25-27 The display channel can not be malfunctioning, please check the following points before sending it to a service center. p. 17 No beep sounds. • Beep tones turned OFF. • Push , then push [8•BEEP] to adjust p. 11 the beep tone level 29 PROBLEM POSSIBLE CAUSE SOLUTION REF. 9 TROUBLESHOOTING If your transceiver seems to be selected. • Lock function...
...; The battery is exhausted. • Change channels. • Recharge the battery pack. p. 8 p. 25-27 The display channel can not be malfunctioning, please check the following points before sending it to a service center. p. 17 No beep sounds. • Beep tones turned OFF. • Push , then push [8•BEEP] to adjust p. 11 the beep tone level 29 PROBLEM POSSIBLE CAUSE SOLUTION REF. 9 TROUBLESHOOTING If your transceiver seems to be selected. • Lock function...
Instruction Manual
Page 35
...fied battery packs/case or • Output power • Modulation • Modulation limiting • Audio harmonic distortion • Hum and noise ratio • Spurious emissions • Microphone connector : 5 W (PEP) typical 1.5 W (CW) typical : Low level modulation : 70 to change without notice or obligation. • External SP connector : 3-conductor 3.5 (d) mm (1/8˝)/8 Ω 30 10 SPECIFICATIONS D General D Transmitter • Frequency coverage (MHz): TX...
...fied battery packs/case or • Output power • Modulation • Modulation limiting • Audio harmonic distortion • Hum and noise ratio • Spurious emissions • Microphone connector : 5 W (PEP) typical 1.5 W (CW) typical : Low level modulation : 70 to change without notice or obligation. • External SP connector : 3-conductor 3.5 (d) mm (1/8˝)/8 Ω 30 10 SPECIFICATIONS D General D Transmitter • Frequency coverage (MHz): TX...
Instruction Manual
Page 36
...;Operates IC-A24/A6 through a cigarette lighter socket*. *Both 12 V and 24 V batteries are required) simultaneously. D OTHER OPTIONS • OPC-499 HEADSET ADAPTER CABLE When using 13.8 V power source instead of the AC adapter for swivel type. • MB-96F/96N LEATHER BELT HANGER ➥MB-96F: Attaches with the transceiver. •BC-119N DESKTOP CHARGER + AD-101 CHARGER ADAPTER + BC-145 AC ADAPTER For rapid charging...
...;Operates IC-A24/A6 through a cigarette lighter socket*. *Both 12 V and 24 V batteries are required) simultaneously. D OTHER OPTIONS • OPC-499 HEADSET ADAPTER CABLE When using 13.8 V power source instead of the AC adapter for swivel type. • MB-96F/96N LEATHER BELT HANGER ➥MB-96F: Attaches with the transceiver. •BC-119N DESKTOP CHARGER + AD-101 CHARGER ADAPTER + BC-145 AC ADAPTER For rapid charging...