USA Alinco Branch DR-135T ユーザーズマニュアル

8. PACKET OPERATION

[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.

[

] 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 to APRS mode.
• Set the packet speed in command mode (cmd:). I.e.

cmd:HB 1200 and 9600

• Register your call sign

cmd: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 EJ41U 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.

[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 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 EJ-41U is configured. EJ41U will hold the
settings in memory. Repeat configuration only when it is necessary.

DSUB-9 cable

GPS receiver

Personal Computer

DATA IN

terminal

GND

（

GPS receiver

）

3.5 mm
3-conductor plug

RXD (To TXD of GPS receiver)

TXD (To RXD of GPS receiver)