5Setting your own station call signRegister your own station call sign in order to send and receive messages and to transmitbeacons in APRS. Enter the call sign like “JA1ZRL-7”. The “-7” in the call sign indicatesthe SSID (Secondary Station Identifier) of which there are 16 types, including one with noSSID. Generally, the SSIDs shown in the table below are used in APRS.SSID Description SSID DescriptionNIL Fixed stations that can exchange mes-sages-8 Marine mobile stations, land mobile sta-tions-1 1200 bps narrow-to-middle band digipe-ater-9 Using the FTM-400XD etc. for mobile ap-plications-2 9600 bps digipeater -10 I-Gate station, Internet connection station-3 1200 bps broadband digipeater -11 Balloons, aircraft, spacecraft, etc.-4 Digipeater, mobile station, meteorologicalstation, etc.-12 1-way tracker station (messages cannotbe exchanged)-5 Operation station using mobile devices(smartphones etc.)-13 Meteorological station (weather station)-6 Operation station for satellite communica-tions, events, etc.-14 Tracking mobile stations-7 Use of FT3D etc. in handy terminals -15 Digipeater, mobile station, meteorologicalstation, etc.1 Press and hold the [DISP] key → Touch [APRS] → [23 CALLSIGN (APRS)].The text input screen will be displayed.2 Input the call sign in the alphabet and numeric inputscreensRefer to “Text input screen” (FT3DR/DE Operating Man-ual) for instruction to enter the call sign.Up to 6 digits can be entered for the call sign.[If no SSID is set]Proceed to Step 4 to set the SSID.3 Press the PTT.The call sign will be registered and the display returned to the operating screen.[If a SSID is set]4 Touch [ ]5 Touch the SSID you want to setWe recommend that the SSID be set to “−7” in this device.6 Press the PTT.The SSID will be registered and the display returned to the operating screen.