WORLD MAGNETIC MODEL (WMM) UPDATE

NEWS

13.03.2020

As we all know, the earth is in constant change – just like its magnetic field. Today, we inform you about an update of the World Magnetic Model (WMM) for our DMC equipped and GPS supported devices: MOSKITO TI, MOSKITO and GonioLight.

Magnetic compasses point to magnetic north, which can differ vastly from geographic north. Magnetic declination – the angle on the horizontal plane between magnetic north and geographic north – is used to describe this difference. However, magnetic declination varies both from place to place and with the passage of time. The WMM accounts for these changes and anomalies of the magnetic field.

With our devices the local magnetic declination can be entered manually by the user, based on information given on a map or commanded during mission briefing. If the local magnetic declination is not entered manually, the GPS supported device determines it according to the WMM.

The local magnetic declination, corrected by the WMM, is an essential function of the equipment and supports the user in achieving the best possible target location with the equipment. We therefore strongly recommend to update the WMM to ensure accuracy and reliability of Safran Vectronix devices.

The required software and files for the free update can be downloaded from this website. However, product-specific cables are required to connect the respective device and to transfer data from a PC/Notebook.

眾所周知，地球處於不斷變化之中——就像它的磁場一樣。 今天，我們通知您有關配備 DMC 和 GPS 支持的設備的世界磁模型 (WMM) 的更新：MOSKITO TI、MOSKITO 和 GonioLight。

磁羅盤指向磁北，這可能與地理北方大不相同。 磁偏角——磁北和地理北之間水平面的角度——用來描述這種差異。 然而，磁偏角隨地點和時間的推移而變化。 WMM 考慮了磁場的這些變化和異常。

使用我們的設備，用戶可以根據地圖上給出的信息或任務簡報中的命令手動輸入當地的磁偏角。 如果本地磁偏角未手動輸入，則支持 GPS 的設備根據 WMM 確定。

由 WMM 校正的局部磁偏角是設備的一項基本功能，支持用戶使用設備實現最佳目標位置。 因此，我們強烈建議更新 WMM，以確保 Safran Vectronix 設備的準確性和可靠性。

請聯繫本公司技術人員，將無償提供更新服務。