Timewave DSP-232, Operating Manual, Page: 21 / 271

Chapter 2 Power Supply and Computer Installation
17. Now you’ll exit out of the packet mode. The following command will force the DSP to “disconnect” from
a station and exit the packet mode:
(
CTRL-C )
cmd:
D
The DSP-232 recognizes the letter D to mean “disconnect from...”
Your monitor should respond with:
cmd:***DISCONNECTED: AAA
AAA*>AAA
(
UA
)
If all of the above steps were successful, you’ve completed the system check-out for Radio Port 1. Press
(CTRL -
C)
and the cmd: prompt will display on your screen. At the cmd:, type
RESET.
If you experienced problems with the above procedure, go back to Step 1
after checking all the cables and
connectors for proper wiring, continuity, and connection. Read each step again carefully. The most common errors
made during this procedure are: trying to connect to a callsign different from
AAA
; not having the green-and-white
wires connected; or not setting the AFSK level to 50% rotation.
Radio Port 2 Test
Now you need to perform the Loop-back test for Radio Port 2. You will do the VHF and HF Packet tests just as you
did before, plus you will test the 9600 bps VHF Packet modem on Radio Port 2.
1. Take the Loop-back jumper that came with your DSP-232, or the jumper you crafted for the previous test
an plug one end into 1 hole (TX) and the other end into the 4 hole (RX) of the 8-pin RADIO-2 socket on
the DSP’s rear panel. This is the 1200 bps VHF & 300 HF Loop-back jumper placement shown below.
You will use the 9600 bps placement later in this section.
9600 bps Loop-back jumper placement.
1200 bps VHF & 300 HF Loop-back jumper placement.
2. Set the RADIO 2 AFSK LEVEL pot on the rear of the DSP to 50% rotation (straight up and down) using a
small screwdriver.
The seven segment LCD symbols ‘AU’ will light. If the above doesn’t happen,
then refer to Chapter 13 - Troubleshooting .
If your serial port is operating at 1200 baud (this is the terminal baud rate), 7-bit even parity as recommended, you’ll
see the following message:
Please type a star
(
*
)
for autobaud routine.
If your serial port is operating at 2400, 4800, 9600, or 19,200 baud (this is terminal baud), you may see some
“garbage” characters. This is normal and you should proceed with Step 10.
2-8 September, 05