First thing you need to do is install the hotfix from trimble for Windows 10 support. Go the TSC3 page on the Trimble Website and click downloads and download the WMDC Registy Update Tool. Try to connect via WMDC and see if it's fixed, it if not continue reading below. The Trimble Data Transfer software transfers data from a range of devices to your PC. You can then import the data into the Trimble Geomatics Office™, Trimble Total Control™, Terramodel®, Trimble Business Center, GPS Pathfinder® Office software, or Trimble Link™, or the GPS Analyst™ extension for ESRI ArcGIS Desktop software.

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Configuring a PC USB port as a virtual serial port

It is possible to use the USB interface from an SPS GNSS receiver with a software application that requires a serial port.

It is possible to use the USB interface from a Trimble AG-342 receiver with a software application that requires a serial port.

For example, the Trimble WinFlash utility can be run on a computer that has no physical serial port by connecting the USB cable between the computer and the receiver.

Another example would allow the receiver to stream NMEA messages over a USB interface into a computer's virtual serial port, allowing applications such as HYDROpro™ construction software to use the NMEA messages on a computer that has no physical serial ports.

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The SPS modular receivers have a number of USB cables to use. The SPS985 smart antenna has USB cable P/N 80751‐HH that can be connected to the receiver. The other end of the USB cable then connects to a computer.

The receiver must be running firmware version 4.15 or later.

Windows 7 Professional operating system

1. The simplest way to install the Virtual Serial port for the USB interface to the SPS receivers is to go to the Trimble Support website (www.trimble.com/support) and search for the SPS GNSS receiver you have. In the Downloads section, download the file called Windows7 USB Installer to your computer or USB drive.

   The simplest way to install the virtual serial port for the USB interface to the receiver is to go to the Trimble Support website (www.trimble.com/support) and search for the AG-342 receiver. In the Downloads section, download the file called Windows7 USB Installer to your computer.

   This file contains a Support Note and installation program.

2. Run the installation program. It will load the virtual serial port for the USB interface on your computeror USB drive.

   Note – If you have installed the Trimble WinFlash utility (www.trimble.com/support) on your computer, then another way to install the virtual serial port for the USB interface is to run the USB Installer program, which is located in C:Program FilesCommon FilesTrimbleUSBDriver.

If this process does not work for your computer, or if you have a different Windows operating system on your computer, then follow the procedure below.

Windows Vista and Windows 7 operating system

1. Go to the Trimble Support website (www.trimble.com/support) and search for the receiver you have. In the Support Notes section, download the file called AG-342SPS GNSS Interface to a Virtual COM port on a Computer to your computeror USB drive.
2. Open the file and place the trmbUsb.inf file in a temporary folder on your computeror USB drive.
3. On the computer, select Control Panel / Device Manager.
4. Click on the name of the computer and then from the Action menu, select Add Legacy Driver.
5. A wizard prompts you to locate the TrimbleUsb.inf file. Locate the file and then follow the prompts in the wizard to continue.

Windows XP operating system

1. Go to the Trimble Support website (www.trimble.com/support) and search for the AG-342SPSGNSS receiver. In the Support Notes section, download the file calledSPS GNSS Interface to a Virtual COM port on a Computer to your computer or USB drive.
2. Open the file and place the trimble.Usb.INF file in a temporary folder on your computeror USB drive.
3. Turn on the receiver and then connect the USB cable to the computer. The New Hardwarewizard appears.
4. Select the No, not this time option and then click Next.
5. A dialog prompts you to specify the location of the USBSer.sys file. For example, C:WindowsSystem32Drivers.
6. On some computers you may need to repeat Step 4 for the TrimbleUsb.inf file.

7. Check that the receiver is available for use. Go to the Device Manager menu on the computer. The receiver should appear in the Ports list.

Note – If you are running an application such as HYDROpro or WinFlash software on the computer and you physically disconnect the USB cable from the computer and then reconnect it, it does not always re-establish the connection. This is because opening the serial port from the application locks the device handle and when the USB device is disconnected, the application does not close the serial port and the device handle is still locked. On reconnecting, the USB cable is unable to get the device handle since it is locked. You must close the application before the reconnect to the port will work. This limitation is due to the behavior of the Microsoft USB serial driver.