Gyro Stabilization Mount - GSM 4000

The Gyro Stabilization Mount GSM 4000® is the flagship of SOMAG AG Jena airborne gyro mount line. It is the successor of the GSM 3000 and contains a lot of new features.

Because Gyro Stabilization makes a difference

The three axes gimbal dynamically stabilizes sensors like cameras, LiDAR’s and other surveying equipment. Due to its versatility, the GSM 4000 can stabilize a wide range of state-of-the-art surveying and surveillance sensors and is not limited to a specific product. This makes our Gyro Mount a perfect add-on for your applications. The gyro stabilization ensures perfectly aligned and pin-sharp images. The GSM 4000 hydraulic gimbal system contains four cylinders and two servo pumps to compensate for drift, roll and pitch movement in real-time for the best possible data acquisition quality.

SOMAG AG Jenas powerful gimbal system

The GSM 4000 was developed for large format sensors and stabilizes a payload up to 120 kg. With 410 mm usable diameter the GSM 4000 is our best solution where effectivity, weight and performance are combined. SOMAG AG Jena reduced the weight of the Mount to 29 kg.

Successor of GSM 3000

The Gyro Stabilization Mount 4000 is 100% downward compatible to current GSM 3000 installations. It means that the mechanical and electronic interfaces are identical. All sensors, cameras, scanners, LiDAR's and FMS can still be used with the GSM 4000. On the top of the Mount is the new and simplified control panel, which guarantees user-friendly handling of the Mount. The USB-port allows you to connect the platform with SOMAG Mount Control App for a manual control of the Mount, firmware updates and fault analysis.

Important Facts

Control Panel

  • USB Port 
  • Interface port with 2x RS 232 serial interfaces
  • no external control panel necessary

Compatible with

  • Multispectral cameras
  • Hyperspectral cameras
  • LiDAR systems
  • Radar Systems
  • Mapping systems
  • Hybrid Mapping systems
  • Surveillance systems
  • Applanix FMS
  • any other FMS is possible
  • external IMU

Benefits of Gyro Stabilization

GSM 4000 Accessories

Gyro Stabilization Mount GSM 4000

Full Covered Hydraulic System
Mass of 29 kg
Control panel / USB port
Payload of 10 to 120 kg


  • Drastic movement reduction of the airborne sensor 
    » Perfect perpendicular exposures are ensured
  • Hydraulic gimbal system
    » Highest stiffness with unmatched dynamic
  • Passive Vibration Isolation Ring
    » Minimization of high frequency vibrations for nearly every payload
  • Leveling option
    » Usage of external IMU data to increase the stabilization accuracy
  • Lift up function
    » Easy accessibility of the camera lens or the bottom of the sensor
  • Independent stabilization because of internal gyros
    » Usage of the device without external IMU possible
  • Applied standards
    »EUROCAE-14G, RTCA/DO-160G, ISO 7137 2006/42/EC machinery


Angular stabilization ranges1

  • Pitch - at 0° roll: ≤±8.8°
  • Roll - at 0° pitch: ≤±7.0°
  • Yaw (drift): ≤±25.0°

Residual angular rate1

  • ≤0.2°/s rms

Residual deviation1

  • Without IMU support with feature 'Performance Boost': ≤0.3° rms
  • With IMU support≤0.02° rms


  • RS 232 / USB

Operational Voltage

  • 28 VDC (24...30 VDC)

Power Consumption at 28 VDC

  • 50 W rms / Peak 180 W

Recommended pre-fuse

  • 15 Amp fuse

Operating temperature

  • -20 °C...+60 °C
  • -4 °F...+140 °F

Storage temperature

  • -55 °C...+85 °C
  • -67 °F...+185 °F

Usable diameter

  • Ø410 mm
  • Ø16.1 in


  • 10...120 kg
  • 22...264.6 lb.


  • 29 kg
  • 63.9 lb.

(regular leveling positions)

  • Length: 615 mm/24.2 in
  • Width: 530 mm/20.9 in
  • Height4: 175 mm/6.9 in

Applied Standards

  • RTCA DO-160-G, EUROCAE-14G, ISO 7137, 2006/42/EC Machinery


*Preliminary data, subject to change

1 Vehicle angular motion <10°/s with typical data acquisition profile frequency spectrum

2 Deviation from perpendicular depends on accuracy of used IMU

Minimum payload is based on usage of Passive Vibration Isolation Ring

Minimum: 149.5 mm/5.1 in
   Maximum: 200.5 mm/8.0 in

Software Features

  • Leveling Offset: adjustment of the Mount virtual horizon
  • End Stop Limits: adjustment of the Mount movement range
  • Block Axis: blocks one Mount axis
  • Status/Analysis: logging and analyzing functions in SOMAG Mount Control App
  • IMU Installation Position on Vehicle Frame: adjustment of horizontal IMU position
  • Pump Direction: adjustment of horizontal pump up direction
  • RTP off: disables mechanical initialization end stop routine movement procedure
  • Installation Direction: adjustment of Mount horizontal installation direction
  • AUX port: enables communication to 3rd party interface


Get in touch with us for detailed information about our optional software features!

GSM 4000 Product Video

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