Alinco DR-435T - Direct Frequency Entry; Frequency Entry by Tuning Step

8. PACKET OPERATION
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[SET UP]
Please refer to the previous chapter for the set up and installation of the EJ-41U unit, TNC and PC.
See below for the connection of a GPS receiver. It requires a 3.5mm stereo plug to connect to the
DATA Terminal on the radio's front panel. See the chart for plug connections. Program the EJ-41U
by using commands from the PC in the same way as in the packet mode.
The PC can be removed from the transceiver once the EJ-41U is configured. EJ-41U will hold the
settings in memory. Repeat configuration only when it is necessary.
GND (GPS receiver)
RXD (To TXD of GPS receiver)
3.5mm
3-conductor plug
+B (To power of GPS receiver) Note (1)
GPS
receiver
DSUB-9
cable
DATA IN
terminal
[= J
MR\ — , S Personal Computer
Note I: When the transceiver is set to the PACKET mode, a power output of +4.5V (max. 200mA) is
supplied by the transceiver, which can be used to power the GPS receiver.
[APRS Operation]
Boot up the PC and open the APRS software. Tune to the APRS system frequency.
Press FUNC key and while F icon is on press SQL key to enter to the data (APRS) mode. Repeat
the same sequence to exit.
[ JUL ] appears on the LCD display when the unit is in data (APRS) mode
The PC monitor will display the initial menu of TNC when it enters the APRS mode.
* Set the packet speed in command mode (cmd:). Le. cemd:HB 1200 and 9600
* Register your call sign emd:MY xxxxxx
* Set the speed on GPS port ~ cmd:GB4800
* Set the automatic transmission time separation cmd:LOC E 3
* Set the monitoring header option OFF cmd:LTMH OFF
* The transceiver will start transmitting automatically when data is received from the GPS re-
ceiver. Refer to the command chart and EJ-41U instruction manual for more details.
Note: Set the transceiver and GPS receiver ‘as far away from each other as possible to minimize pos
sible
interference.
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