Kantronics KPC-3 Plus - Calibration;Equalization

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5. Observe on the computer display (your terminal program must be set at 1200 baud):
CHECKSUM OK
RAM OK
100,000 BYTES
NO CLOCK
REPLACE TEST JUMPER
6. Turn power off.
7. Return jumper J11 to the normal position (one pin only).
8. Reassemble the KPC-3 Plus and return to operation.
Note: After a hard reset, all parameters are at factory default values and any mailbox
messages are lost.
Calibration/Equalization
The CALIBRAT command is used to assist in adjusting the data transmitter drive level
and also in adjusting the receive equalization of your KPC-3 Plus. The procedures listed
below are a guideline for using the calibration command to adjust for optimum
performance.
When you issue the CALibrate command, the following options will appear on your
screen:
CALIBRATE MODE:
M send mark
R receive
S send space
T send square wave
- or + adjust XMITLVL while transmitting
X exit
Pressing M will transmit a constant MARK (signal) until another key is pressed.
Pressing R will measure a received square wave.
Pressing S will transmit a constant SPACE until another key is pressed.
Pressing T will transmit a square wave (space/mark) until another key is pressed.
Pressing X will exit the calibrate mode and reset the KPC-3 Plus.
Drive level.
The drive level is set by a digital pot, providing a range of 1 mV to 4 V p-p. Default drive
level is about 50 mV, corresponding to a XMITLVL command setting of 100. After
entering the calibrate mode (CAL) you should use the T option to initiate the
transmission of a square wave and then adjust the AFSK drive level by pressing the ‗-‘