Kantronics KAM 98, User Manual

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Alternatively, you may use the calibrate command (CAL) which has a zoom fea-
ture; that is, you can hold down the ‘-’ or ‘+’ key to decrease or increase the volt-
age (as you watch a meter or listen). See the commands section for more detail
on these commands. CAL is not available in the NEWUSER mode; you must be
in TERMINAL mode to access CAL.
The next section of this chapter is for those who wish to connect a GPS device to
their KAM’98. Skip this section if it does not apply to you.
Connecting to a GPS Device (Optional)
To use your KAM’98 with a Global Positioning System (GPS) device, you need
to connect the GPS device to the DB-25 “Computer" port (i.e., serial port) on the
back of the KAM’98, in place of the computer.
Alternatively, you may connect the GPS device to the AUX port. See the
GPSPORT command, in the Command Reference, for details.
Since you need to remove the computer’s serial modem cable from the
KAM’98’s “Computer” port and replace it with the GPS’s cable before you can
use the GPS device with the KAM’98, you will need to use your computer to
configure your KAM’98 to work with the GPS device before you connect your
GPS device to your KAM’98.
Note: You can also attach both the KAM’98 and a GPS device to your computer at
the same time, using an APRS HSP (hardware single port) cable and the APRS
program.
Since cabling may vary from one GPS vendor to another, the cable is not sup-
plied with your KAM’98. You will need to purchase or make a cable, using the
specifications in your GPS manual.
To connect the GPS receiver and the KAM’98 as a “Stand-alone” position report-
ing system without a computer, you will need to connect a minimum of 2 wires
for data flow from the GPS receiver to the KAM’98. Connect the GPS receiver
“DATA OUTPUT” to TXD (pin 2) on the KAM’98. Connect the GPS receiver
Connecting to a GPS Device (Optional) Installing Your KAM’98
KAM’98 v 8.3 67 User’s Guide