EM38-MK2 GPS Menu


Configure the EM38-MK2 GPS on the TK6000.


1. Using the stylus, select the EM38-MK2 Set GPS Port Menu.


EM38-MK2 Set GPS Port


EM38-MK2 GPS Input

EM38-MK2 GPS Input

2. Select the GPS

Input Field and choose either Enabled or Disabled depending on whether the user wants to use GPS for the survey or not. When the EM38-MK2 GPS is disabled, a message stating GPS Disabled will be seen where the GPS coordinates would usually be in the logging mode.





EM38-MK2 Serial Port

EM38-MK2 Set GPS Serial Com Port

3. Select a Com

Port in the Serial Port Field if enabling the EM38-MK2 GPS. COM2: is the default GPS Com port. It is important that the GPS port is different than the port connected to the EM38-MK2 for data acquisition.






EM38-MK2 GPS Baud Rate

EM38-MK2 GPS Baud Rate

4. Specify the correct Baud Rate

for the EM38-MK2 GPS system. By default the Baud Rate is set to 9600, which is fairly common. Always follow the manufacturer’s settings. Baud Rates include 4800, 9600, 19200, 38400, 57600, and 115200.






EM38-MK2 Parity

EM38-MK2 GPS Parity

5. Match the Parity

to the GPS’s parity. Options include No, Odd, or Even. The default is No.







EM38-MK2 Set GPS

EM38-MK2 Data Bits

6. Select the Data Bits

Value that matches the GPS receiver. The default is 8 although it can be adjusted to 7.






EM38-MK2 Set GPS

EM38-MK2 Stop Bits

7. Select the Stop Bits

Value that matches the GPS receiver. The default is 1 although it can be adjusted to 2.







EM38-MK2 Set GPS

EM38-MK2 GPS Output

8. If the Monitor GPS Output

Button is tapped, the EM38-MK2 program will be in terminal mode, displaying the GPS receiver output, the last NMEA command sent to the GPS receiver, and three command buttons: Pause/Go, Send, and Exit.

Every time the EM38-MK2 GPS records its location, information is sent and displayed in the terminal mode. If the user receives a message of “No Data,” the GPS settings or connection are not correct. The GPS monitoring can be stopped and restarted at any time using the Go/Pause Button. The Send Button allows the user to send a NMEA command to the GPS receiver. GPS parameters should be set using the GPS’s interface or manufacture’s software. However, if the user is familiar with the GPS’s system and NMEA protocol, he or she may use this button to give commands. It is important to note that not all GPS systems use NMEA protocol and some do not accept commands sent through serial cables. The Exit Button is used to leave the terminal mode.

Geonics EM38 Terminal Mode

Geonics EM38 Terminal Mode


9. After changing the EM38-MK2 Survey Setup Menu options, it is important to save.

Press the OK Button to save. After pressing the OK Button, it is safe to push the X Button to exit. If the user exits without pushing the OK Button, the changes will not be saved.