EM9190 - Reducing GPS Sentence if modem is hidden

Richard Mills

Sep 29, 2025

Q: I have a EM9190 Module and need to send AT Commands to reduce GPS Sentence to GP only but the Modem is not present. How do I make it appear?

A: On the EM9190 the modem is hidden by default. You have to do the following below to make it temporarily available while you reduce sentences, then make it hidden once again.

Follow the below steps:

Make sure in control Panel for Getac GPS Service it is disabled
Download Latest EM9190 Driver from driver page https://support.getac.com/Portal/Page/763
Unzip the file
Open the Configuration.ini and add the line EnableUDE=1 above the ;;;; that are there
Save and close the file
Run the driver install exe - This makes the modem present in device manager
In your browser go to https://gps.getac.com
Download the first file for GetacGPSCommand
Unzip the file
Click the path at the top and copy it
Open command prompt and type cd then space and paste the path you copied and press enter
Type GetacGPSCommand AT!GPSNMEASENTENCE=1F and press enter it should say OK. Make sure you're using all CAPS
Type GetacGPSCommand AT!RESET and press enter it should say ok and the module does a power cycle saving the settings
After the module is done resetting you can check to make sure its outputting properly by typing GetacGPSCommand /p 3 9600 and press enter. Change the 3 to whatever COM port device manager says
It should then output ONLY GP sentences
Next go back to control panel and enable the Getac GPS Service
Download VGPS-Lite from this link https://gusanc.getac.com/index.php/s/PYyYH4qiAGXgoKC
password is getac12345
Install VGPS-Lite
Go back to the driver and open the configuration.ini again
Remove that line we added and save and close the file
install the driver again so it makes modem section disappear from device manager
COM30 will not be available for your CRM/CAD to use for GPS
Walk outside so its getting a good fixed signal and it should work

The reason we are using VGPS-Lite is because most CRM/CAD systems do not like the 4G/5G GPSs as the handshaking with them is to new, VGPS bridges that gap to allow the software to receive GPS sentences successfully.