Kantronics KPC–3 Plus User Manual
Also see for KPC-3 Plus: User guideUser guideManual
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53Connecting to a GPS Device (Optional)To use your KPC-3 Plus with a GPS device, you can connect the data output from theGPS device to either the DSUB-25 ―Computer" port (i.e., serial port) on the back of theKPC-3 Plus or alternately, to a pin on its radio port.Since you need to remove the computer‘s serial modem cable from the KPC-3 Plus‘―Computer‖ port and replace it with the GPS‘s cable before you can use the GPS devicewith the KPC-3 Plus, you will need to use your computer to configure your KPC-3 Plusto work with the GPS device before you connect your GPS device to your KPC-3 Plus.Note: You can attach both the KPC-3 Plus and a GPS device to your computer at thesame 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 supplied withyour KPC-3 Plus. You will need to purchase or make a cable, using the specifications inyour GPS manual.To connect the GPS receiver and the KPC-3 Plus as a ―Stand-alone‖ position reportingsystem without a computer, you will need to connect a minimum of 2 wires for data flowfrom the GPS receiver to the KPC-3 Plus. Connect the GPS receiver ―DATA OUTPUT‖to TXD (pin 2) on the KPC-3 Plus. Connect the GPS receiver ―SIGNAL GROUND‖ tosignal ground (pin 7) on the KPC-3 Plus. Your GPS receiver may require other pins tobe connected, check its documentation.An alternate input is available in the KPC-3 Plus (at firmware version 8.3 or later) forGPS data, on its ―Radio‖ port. The alternate GPS data input is enabled with thecommand GPSPORT, and uses pin 2 on the KPC ―Radio‖ port.See your GPS manual and the chapter in this manual on ―GPS NMEA InterfacingCapability‖ for details on using your GPS device with your KPC-3 Plus based packetradio station.Note: some weather station devices have data outputs similar to GPS devices. Theconfiguration of the KPC, and connection to the device is the same.This concludes the installation of your station.For more information on installation topics, see the appendices. |
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