TH-D72A/E - N3UJJ

4 GPS4.2 GPS ReceiversWeather StationExternal GPS receiverCOM terminalLine filterFigure 4-2 Connection Example of GPS Receiver4.2.1 Garmin GPS18xPCThe GPS18xPC is a GPS module receiver. And it interfaces via a 9-pin D-Sub RS-232C serial port.Refer to the wiring example using commonly-available DB-9 connector (male), and a cable with3-conductor plug (Kenwood service part: E30-3400-15). Power is sourced from the 12VDC suppliedfrom a vehicle cigarette lighter socket. Because there is no screen, you cannot use the Waypointfunction.RXDTXDGND5 3 2White(to DATA IN onGPS/ WS)Red(to DATA OUT onGPS/ WS)Shield(to GND onGPS/ WS)(solder side)DB-9 connector (Male)Attach the line filter to the cable.(Kenwood service part: L79-1417-05)Figure 4-3 Cable Connection Example (Garmin GPS18xPC)4.2.2 AvMap G5The AvMap G5 comes with a Kenwood-ready cable and exclusive APRS interface built right into thepanel. You can watch APRS activity on the AvMap G5 screen without having a PC. It also can beconfigured to navigate to your favorite APRS station.4.2.3 Other GPS ReceiversThe GPS receiver used must be based on NMEA 0183 format (http://www.nmea.org).The following RS-232C signal levels are allowed for using the TH-D72A/E:• Low level: - 15 V to 0.5 V• High level: +3.0 V to +15 VYou cannot use a GPS receiver with a USB connector.26 CONTENTS TH-D72A/EFrom The N3UJJ.COM Document Library