Chapter 6 - System Operation and Control
40
MA and SP are located next to the DB25 connector (J4) and the other pair is located on the oppo-
site end of the board. Install jumpers from MA to MA and SP to SP and Mark/Space signals will
then be present at pins 11 and 18 of J4.
Obtaining Mark and Space Outputs
CALIBRATION
The
CALibrate
command is used to assist the KAM operator in determining the need for equal-
ization of a received signal. Since this feature is unique to the Kantronics All Mode Communicator,
two stations using the Kantronics All Mode Communicator are necessary to utilize this command.
Once the
CALibrate
commana is given, three options will appear on the terminal screen.
Calibrate Mode Press R, T, or X
Pressing X will return the program to the Command mode.
Pressing T will transmit. ; square wave (space/mark) at the VHF Packet tone (1200/2200
Hz) until a key is pressed. The
CALibrate
tone is transmitted via the VHF port only.
Pressing R will measure a square wave received 1200/2200 Hz.
One station should be used to transmit the square wave, while the receiving station should
measure and compare the space/mark square wave. The transmitting station should set the micro-
phone level in the mid range.