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+ When the deviation has been set, check the paramater value for XMTLVL and
make a note of that value for future reference.
Receive Equalization.
If you have another Kantronics user nearby, have that station transmit a calibrate
square wave and choose the R option in your calibrate mode to measure the sta-
tus of port 1 receive equalization. You will see two numbers displayed each time
you press R. The 9612 Plus is measuring the space/mark square wave generated
by the other station. For best performance, these numbers should be about equal.
A 40/60 to 60/40 ratio is acceptable. Change jumper J5 if need be. See the jumper
section for J5’s location/function. Default is no equalization for port 1 since it is
normally not needed.
Note: If you are using a Low Impedance Data output from the radio (or external
Speaker output), set J3 on both pins (OFF = 10K, ON = 620 ohm).
Port 2: High-speed Port
To set drive level and receive equalization for port 2, you must have your current
I/O stream on the high-speed port. When you issue the CALibrate command, the
following options will appear on your screen:
9600 CALIBRATE MODE:
< or > adjust EQUALIZE
- or + adjust XMITLVL while transmitting
S send scramble
T send square wave
X exit
Pressing S will transmit a scrambled signal until a key is pressed.
Pressing T will transmit a square wave until a key is pressed.
Pressing “-” or “+” (and holding it down) will zoom the drive voltage
down or up.
Pressing the “<” or “>” will adjust receive equalization.
Pressing X will exit calibrate mode.
Appendix B: Advanced Information
Calibration/Equalization
User’s Guide
300
KPC-9612 Plus v 8.2
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