Alinco DJ-175 - Manual (Page 49)

9.Cloning and Packet Operation
9
49
Packet operation is one of the data communication methods, which enables data
transmission and reception with a personal computer through an optional TNC unit
available from third-parties.
9.2.1 Packet Operation Connections
Connect the packet communication TNC (Terminal Node Controller) terminals to the
SP (Ø3.5 mm plug) and MIC (Ø2.5 mm plug ) connectors on the top of the transceiver.
• Input level adjustment: The unit doesn't have microphone and speaker level
adjustment circuit. Adjust their level on the TNC side.
• Output level adjustment: Use the audio output ( key) of the unit to adjust the
output level from MIC/SP terminal.
SP
(Low)
T
N
C
3.5ø PLUG
GND
MIC
PTT
GND
2.5ø PLUG
10k
Ω
10 µF
5.0V
GND
SP
5.0V
GND
MIC
Packet Operation 9.2
Caution
• Refer to the TNC's instruction manual when connecting the TNC unit to other
devices (personal computer etc.). If the unit, TNC unit and connected personal
computer are set too close, noise between them may cause interference.
• Turn the battery save function off during packet operations.
• DJ-175 operates up to 1200bps only.