Icom ID-50A Basic Manual page 63

Step 3: Check whether you can access the repeater.
Hold down [PTT] for 1 second to access the repeater.
 If you get a reply call, or "UR?" is displayed within 3 seconds, your signal reached your
access repeater and your call was successfully sent from your destination repeater.
TIP: See page 63 for status indications after a reply is received.
Successfully sent!
D-STAR OPERATION
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