Kenwood TM-255A User Manual

11 MISCELLANEOUS TOPICS

84

TM-D710A/E

When a transceiver, other than those that have been verified to operate correctly, is connected, 
there are times when adjustment of input/output levels may become necessary for RC-D710 and 
the transceiver to function properly.  Even when you cannot adjust the input and output levels on 
the transceiver side that is connected, it is possible to adjust input and output levels on 
the RC-D710 side using 3dB steps by using MCP-2A.

1. Turn the power of RC-D710 OFF.
2. Connect the PG-5G programming cable (serial communication cable) between the COM 

terminal on the rear side of RC-D710 and a personal computer.

3. Start MCP-2A.

Click the “

” button on MCP-2A and read the data from RC-D710.

4. Select “Data Terminal” from the Edit pulldown menu.

The configuration window for input/ output levels will open.

PKD PIN (1200bps): 1200 bps output level
PR9 PIN (1200bps): 1200 bps input level
PKD PIN (9600bps): 9600 bps output level
PR9 PIN (9600bps): 9600 bps input level

*

Input / output terminals for 1200 bps and 9600 bps are the same.  However, levels have to be set individually.  

Refer to the Help file for MCP-2A for details.

5. Click the “

” button on MCP-2A and write the data to RC-D710.

6. Turn the power of RC-D710 OFF and disconnect the programming cable from PG-5G.

Note: In some transceivers, other than those that have been verified to operate correctly, the TNC data input/output line 

which is connected to PKD/PR9 has not disconnected the DC voltage inside the transceiver.  Therefore, there are 

situations where the transceiver will not function properly even if input/output levels are adjusted correctly.  Use 

caution.