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Problem: Go to Terminal Screen, but Nothing Happens
One possibility is that the current COM port does have a device on it, but it is not a
TNC. It might be a mouse or an internal phone modem, for example. To see if it is a
mouse, go to the TERMINAL Screen, start moving your mouse and see if sequences of
characters appear as you move the mouse. If so, change the COM port setting in
HyperTerminal and try again.
Another possibility is that the KPC-3 Plus has already been programmed with a different
baud than the one set in the terminal program. You can try changing the baud in the
terminal program, or you can use the self-test jumper (J11) to erase the current settings
in the KPC-3 Plus, forcing the KPC-3 Plus to try its Autobaud routine.
Problem: You Are Getting Bad or Intermittent Data
Many PC compatible computers are designed with a built-in potential conflict that may
cause a problem. Both COM2 and COM4 (and both COM1 and COM3) may use the
same interrupt (IRQ) mechanism to get the attention of the computer. This means that if
devices on both COM2 and COM4 (or both COM1 and COM3) are sending signals to
the computer at the same time, this can cause problems for programs, such as
HyperTerminal, that use either COM port. If you are getting bad data, check to see if
you have another device that might be getting confused with your TNC (on COM4 if
your TNC is on COM2; COM3 if your TNC is on COM1) and make it inactive or remove
it while using HyperTerminal with your TNC.
Problem: Your TNC Stops Behaving Normally
HyperTerminal is intended for use with a TNC in NEWUSER or TERMINAL Interface
Mode (or, less often, in BBS or GPS Interface Mode), but it may receive data from the
TNC in any Interface Mode. Non-response, garbled data, or partially garbled data may
indicate the TNC has been switched to HOST or KISS mode and needs to be switched
back to NEWUSER or TERMINAL. See the TNC documentation for instructions on how
to determine what Interface Mode your TNC is in currently and how to change it to the
Interface Mode you want (NEWUSER or TERMINAL).
Connect the KPC-3 Plus to a Transceiver
The last connections you need to establish are between your KPC-3 Plus and your
transceiver. You will construct and install a transceiver cable assembly that has two
functions: (1) to send signals from the speaker jack of your transceiver to your KPC-3
Plus‘ ―Radio‖ port for processing, and (2) to send signals from your KPC-3 Plus‘ ―Radio‖
port to the microphone connection of your transceiver for transmission.
As illustrated in the diagram on page 33, the transceiver cable connects to the ―Radio‖
port on the KPC-3 Plus via a male DSUB-9 connector shipped with your KPC-3.
This section goes step-by-step, dealing with the following questions:
What parts will be needed for the assembly?
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