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RINEX Logging with the GPSMAP 66, 67, 86 Series and Montana 700 Series

RINEX Logging (Receiver Independent Exchange Format) is feature for Garmin found on the following outdoor handhelds:

  • GPSMAP® 66i | GPSMAP® 66s | GPSMAP® 66sr | GPSMAP® 66st

  • GPSMAP® 67 | GPSMAP® 67i

  • GPSMAP® 86i | GPSMAP® 86s | GPSMAP® 86sc | GPSMAP® 86sci

  • Montana® 700 | Montana® 700i | Montana® 710 | Montana® 710i | Montana® 750i | Montana® 760i

This feature allows recording of raw GPS data, such as distance to satellites, line of sight speed between the receiver and satellite and signal strength. This raw data can be saved from the device and used with third-party programs to create more accurate locations, sometimes as accurate as 10 cm.

RINEX logging creates a new file each time it is enabled, the device is power cycled, or the satellite constellation is changed on the device.

NOTE: RINEX data (Example: grmn300p08.21O) is not compatible with any Garmin programs; however, third-party programs, like RTKLIB, can be used to convert the data to KML format for use with Garmin programs. Garmin does not support third-party programs, or the process of converting or modifying RINEX data. 

Enabling RINEX Logging

  1. Access the main menu.

    • GPSMAP 66, 67, 86 series: Press MENU twice.

    • Montana 700 series: Touch Home.

  2. Select Setup.

  3. Select System.

  4. Toggle on RINEX Logging.

Once RINEX Logging is enabled, the device will always attempt to record raw GPS data whether a track is actively being recorded or not. However, RINEX data will not be recorded in situations where GPS data is degraded, such as heavy tree cover, or under an overhang.

Exporting RINEX Logs

PC

  1. Plug the Garmin handheld into the computer.

  2. Press the Windows key + E on the keyboard to open Windows Explorer/File Explorer.

  3. Select This PC (Windows 10 & 11 only).

  4. Open the Garmin drive.

  5. Open the Garmin folder.

  6. Open the RINEX folder.

  7. Copy the file(s) to the computer.

Mac

NOTE: GPSMAP 67 and GPSMAP 67i outdoor devices use MTP mode, which prevents them from appearing as a separate drive on Mac computers. For these devices, a Windows computer must be used.

  1. Plug the Garmin handheld into the computer.

  2. Open the Garmin drive from the desktop.

  3. Open the Garmin folder.

  4. Open the RINEX folder.

  5. Copy the file(s) to the computer.

Deleting RINEX Logs

PC

  1. Plug the Garmin handheld into the computer.

  2. Press the Windows key + E on the keyboard to open Windows Explorer/File Explorer.

  3. Select This PC (Windows 10 & 11 only).

  4. Open the Garmin drive.

  5. Open the Garmin folder.

  6. Delete the RINEX folder.

Mac

NOTE: GPSMAP 67 and GPSMAP 67i outdoor devices use MTP mode, which prevents them from appearing as a separate drive on Mac computers. For these devices, a Windows computer must be used.

  1. Plug the Garmin handheld into the computer.

  2. Open the Garmin drive from the desktop.

  3. Open the Garmin folder.

  4. Delete the RINEX folder.

  5. Empty the computer's Trash.

  6. Safely Eject the Garmin device.

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