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BASIC MANUAL

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ENGLISH

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BASIC OPERATION

 

Turning the 

transceiver ON or OFF

NOTE:

 Before using the transceiver 

for the first time, the battery pack must 

be fully charged for optimum life and 

operation. See the BATTERY CHARGING 

section.

 

z

Hold down [ ] for 1 second to turn the 

transceiver ON or OFF.

 

Selecting a channel

1.  On the Standby screen, push  

 

[CH/SET].

 •Enters the Channel Select mode and 

the channel number blinks.

2. 

Push [▲] or [▼] to select a channel, 

and then push [CH/SET] to apply the 

setting.

 •Returns to the Standby screen.

 

Receiving and 

Transmitting

Receiving:

When a call is received, the antenna icon is 

displayed.

 

z

Push [▲] or [▼] to adjust the audio 

output level to a comfortable listening 

level.

 

L

The volume can be adjusted between 

0 and 32.

Transmitting:

 

z

While holding down [PTT], speak at your 

normal voice level.

 •The “

” icon is displayed while [PTT] is 

held down.

IMPORTANT:

To maximize the readability of your signal:

1.  After pushing [PTT], pause briefly 

before you start speaking.

2.  Hold the microphone 5 ~ 10 cm 

from your mouth, then speak at your 

normal voice level.

 

Key Lock function

You can use the Key Lock function to 

prevent accidental channel changes and 

unnecessary function access, depending 

on the presetting.

All assignable keys except the following 

are electronically locked: [MONI], [Volume 

Up], [Volume Down], [Emergency], 

[Surveillance], and [PTT].

You can also make or receive calls, or turn 

the transceiver ON or OFF, during the Key 

Lock function is ON.

 

z

Hold down [

] for 1 second to turn the 

Key Lock function ON or OFF.

 •The “ ” icon is displayed when the Key 

Lock function is ON.

 

Call-Ring operation

This function sends the preset ringer to 

your group members.

 

z

Hold down [S-Ring/C-Ring] for 1 second 

to send the preset ringer.

 •The “

” icon is displayed while [S-Ring/

C-Ring] is held down.

 •The ringer may sound while holding 

down [S-Ring/C-Ring], depending on the 

setting.

 •The same ringer sounds from your group 

members’ speakers.

NOTE: 

To use this function, the operating 

channel and CTCSS tone or DTCS code 

must be the same on all of your group’s 

transceivers.

Summary of Contents for IC-U20SR

Page 1: ...BASIC MANUAL PMR446 TRANSCEIVER U20SR...

Page 2: ...www icomjapan com support Explicit de nitions WORD DEFINITION R DANGER Personal death serious injury or an explosion may occur R WARNING Personal injury fire hazard or electric shock may occur CAUTION...

Page 3: ...the terminals touch metal objects such as a key so be careful when placing the battery packs or the transceiver in bags and so on Carry them so that shorting cannot occur with metal objects Shorting...

Page 4: ...uct About CE and DOC Hereby Icom Inc declares that the versions of IC U20SR which have the CE symbol on the product comply with the essential requirements of the Radio Equipment Directive 2014 53 EU a...

Page 5: ...ront top and side panels 6 Function display 7 3 BATTERY CHARGING 8 Battery cautions 8 Charging cautions 9 Battery charging 10 4 BASIC OPERATION 12 Turning the transceiver ON or OFF 12 Selecting a chan...

Page 6: ...hing or attaching a battery pack BE SURE to turn OFF the transceiver by holding down for 1 second Otherwise a transceiver malfunction could occur 1 Release the rear cover lock clip 1 and remove the re...

Page 7: ...The USB connector does not support USB Power Delivery USB PD or a data communication 6 MONI KEY While holding down this key the Monitor function is ON on the Standby screen 7 KEY On the Standby screen...

Page 8: ...Battery Status Full Mid Charging required Battery exhausted Blinks when the battery charge decreases to a set level 8 ALPHANUMERIC READOUT Displays messages such as channel number CAUTION DO NOT use t...

Page 9: ...id from inside the battery get in your eyes This can cause blindness Rinse your eyes with clean water without rubbing them and immediately go to a doctor R R WARNING NEVER Iet fluid from inside the ba...

Page 10: ...wet or soiled This could corrode the battery charger terminals or damage the charger The charger is not waterproof NOTE DO NOT charge the battery pack outside of the specified temperature range 15 C...

Page 11: ...ter USB Power Delivery USB PD is not supported The charging time may differ depending on the current When you use a lower than 1 A output AC adapter or PC it may take longer to charge or the battery m...

Page 12: ...charged by the charging cradle with the BC 262 inserted Charging time Approximately 3 8 hours with 5 V 1 A input USB cable USB Type C Battery pack BC 264 Charging indicator Lights orange Charging Not...

Page 13: ...1 After pushing PTT pause briefly before you start speaking 2 Hold the microphone 5 10 cm from your mouth then speak at your normal voice level Key Lock function You can use the Key Lock function to...

Page 14: ...ure beeps 2 Push any key to stop the Ringer melody 3 Push PTT to transmit if necessary NOTE To use this function the operating channel and CTCSS tone must be the same on all of your group s transceive...

Page 15: ...arm type HS 97 headset Throat microphone D D Others OPC 2006LS plug adapter cable L type plug conversion cable Connects the HS 94 HS 95 HS 97 to the transceiver for the VOX operation OPC 2328 ptt swi...

Page 16: ...7 4 100 0 103 5 107 2 110 9 114 8 118 8 123 0 127 3 131 8 136 5 141 3 146 2 151 4 156 7 159 8 CTCSS tone or DTCS code can be manually programmed Ask your dealer for details Technical Information Frequ...

Page 17: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan How the World Communicates A7725 4EU 2023 Icom Inc May 2023...

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