APRS-9BASIC SETTINGSEnter Menu mode and access Menu 600.■ My Callsign Program your callsign using a maximum of 9alphanumeric characters. You may include SSIDcharacters in the string. Unless you program a callsign,you cannot transmit APRS packets.1 Select MY CALLSIGN.• The display for entering a callsign appears; the firstdigit blinks. The default is “NOCALL”.2 Rotate the Tuning control to select the first digit.• You can enter 0 to 9, A to Z, and –.3 Press the Tuning control.• The cursor moves to the next digit.4 Repeat steps 2 and 3 to enter up to 9 digits.Note: When all settings are blank, “NOCALL” is automaticallyset. In this case, the Position packet or Message packet cannotbe transmitted.■ Beacon Type [APRS]: Beacons are transmitted in APRS formatwhen the “APRS” icon appears on the upper left of thedisplay. Additionally, in Menu mode, only those menuswhich can be set with APRS are displayed.[NAVITRA]: Beacons are transmitted in NAVITRAformat when the “NAVITRA” icon appears on the upperleft of the display. Additionally, in Menu mode, onlythose menus which can be set with NAVITRA aredisplayed.SETTING INTERNAL TNCEnter Menu mode and access Menu 601.■ Data Band On this transceiver you can select data band for APRSmode independent of the selection for Packet mode.Select band A or B as the data band for receiving ortransmitting APRS packets. The default is band A. “ ”indicates the current data band.Note: In Menu 601, the selection switches among A-BAND, B-BAND, TX:A-BAND RX:B-BAND, and RX:A-BAND TX:B-BAND.Select TX:A-BAND RX:B-BAND or RX:A-BAND TX:B-BAND ifAPRS networks which use two separate frequencies becomeavailable in the future.■ Packet Transfer Rate The default APRS packet transfer rate set on the built-in TNC is 1200 bps which is the standard among thecurrent APRS networks. If APRS networks which use9600 bps transfer rate become available in the future,select “9600 bps”■ DCD Sense You can also select the method for inhibiting the built-inTNC from transmitting.[D or RxD BAND]: When the data band is nolonger busy (as per the steps below), the packet istransmitted.q Press [PTT] to enter transmit mode.w The data band is busy.[BOTH BAND]: When the bands are no longer busy(as per the steps below), the packet is transmitted.q Press [PTT] to enter transmit mode.w The data band is busy.e The other band is busy.[IGNORE DCD]: Transmission from the built-in TNC isnot inhibited. The packet is transmitted immediately.■ TX delay This function allows you to set a transmission delaytime between transmitting the APRS data andtransmitting a flag code prior to the APRS data. Whenthe other station has activated their Save Mode, set alonger delay time.
