3454 Press [aaaaa].• The cursor moves to the next digit.5 Repeat steps 3 and 4 to enter up to 6 codes.6 Press [OK] to complete the setting.7 Press [MNU] to exit Menu mode.The keypad on the MC-53DM also is available to enteralphanumeric characters in step 3. See page ii.In order to include a message group code in youroutgoing packet, enter a group code in place of a callsign {page 30}. To include a bulletin group code, enter itfollowing BLN# {page 30}; for example, “BLN#ABC”where ABC is a group code. Use up to 9 characters fora message group code or up to 4 characters for abulletin group code.Note: Unlike a message, a bulletin including a group code will bereceived by stations who do not program any bulletin group code.PROGRAMMING A GROUP CODEUse a message group code to exchange messages onlyamong your group members. With one or moremessage group codes programmed, you will receivemessages that include the same group code(s), besidesmessages addressed to you. If you program one ormore bulletin group codes, you will not receive bulletinsaddressed to other specific groups. You can programany desired code using alphanumeric characters; up to 9characters for messages, and up to 4 characters forbulletins. You can also program up to 6 codes at thesame time; each code must be separated by a comma(,). If you program 3 message group codes, for example,you will receive all messages that include one of the 3codes. If you program 3 bulletin group codes, you willreject bulletins addressed to specific groups which donot use any of the 3 codes.1 Press [MNU] to enter Menu mode.2 Press [ccccc]/ [ddddd] to select “MSG GROUP (3–P)” or“BLN GROUP (3–O)”, then press [OK].• The display for entering one or more group codesappears; the first digit blinks.3 Turn the Tuning control to select the first digit.• You can enter 0 to 9, A to Z, , (comma), and –. Formessages, “ ” is also selectable..ammocastresnI afoyrtneslecnaC .edocpuorgtatigidehtseteleD sirosrucehthcihw .gniknilbrosrucehtsesuaC .drawkcabevomotyltnerrucehtstresnI .retcarahcdetceles DNABtfel( )LESdnastigidllasraelC otrosrucehtskcab .tigidtsrifeht