Specifications

Many terminal programs can be found throughout the amateur community
or can be downloaded from Compuserve and from many telephone
bulletin boards. In addition a BASIC communications program is
listed in the Programmer's Reference Guide published by Commodore.
Use the program listing for "True ASCII". We suggest you operate
your PK-900 at 300 bauds with these computers to avoid possible
speed difficulties.
Follow the installation directions that come with the Terminal program
you wish to use. Once installed on the computer, you should start the
program and set the communication parameters for the following:
Data Rate = 300 bits per second (Bauds)
Data bits = 7
Parity = EVEN
Stop bits = 1
Once these settings have been achieved, proceed to section 2.5.
2.5 System Startup and Loop-back Test
Make sure that you have connected your PK-900 to a 12-14 Volt DC
power source and to the RS-232 port of your computer or Terminal.
If you are using a computer, you must also have a communications
program and be familiar with its operation. You are now ready to
begin the following PK-900 Startup and Loop-back test procedure.
1. Don't connect any cables to your radio yet!
2. Remove the 16 gauge wire "Loop-back" connectors from the
PK-900 accessory bag.
3. Plug these into pins 1 and 4 of each of the radio connectors on
the PK-900's rear panel.
4. Set both AFSK levels on the back panel of the PK-900 to 50%
rotation (straight up and down) using a small screwdriver.
5. Turn on your computer. Load and run your communications program.
If you are using an AEA PAKRATT program, follow the program
instructions to enter the Packet mode, then skip to step 11.
If you are using another Terminal Program or a Computer Terminal,
Set your computer's terminal program to:
o 1200 bauds (if available);
o seven-bit word;
o even parity;
o one stop bit.
NOTE: You may use other terminal baud rates with the PK-900 - we
recommend 1200 baud here to keep this procedure easy and consistent.
6. Press the PK-900's power switch to the ON position.
At power-on, the LCD Status display on the left should light,
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