MX7 FAQ

Where:

• ERP: reference point on the quick release plate
• Ref: origin of the trajectory
• Pri: primary GNSS antenna phase center
• Cam: center of the spherical camera

Technically this is possible, but not recommended. There are cigarette lighter adapters that can be connected directly to an external battery. However, in this case, you would have to find a way to protect the system with a fuse since the internal fuse of the car cigarette lighter is not being used. In addition you have to make sure that this adapter can handle the amount of current coming from the external battery. Also, if you are using an additional (third-party) cable, it's possible to increase the drop in voltage, which can lead to sudden shutdown of the system or connectivity issues.

It is not possible to give an answer as it varies depending on the type of battery (Ah).

There is no calibration necessary for the MX7, it is only required to re-measure the installation height and in case of using a DMI, the new DMI lever arms.

You can use the DMI / Ext socket port to transmit PPS and navigation information from the MX7 to a camera. We do not provide a cable for this. You will therefore have to get it yourself, or assemble it yourself with the right connector (Lemo EEA.2K.316.CLL). Then you can use for example pin # 4 to get navigation data from the POS, or pin # 10 for the PPS.

Note that, unlike the MX9, there is no pin which sends a trigger, nor a pin which allows to receive "events" which will be recorded by the POS. Consequently it is not possible to export the post-processed position of each image with POSPac like we can with an MX9.

Something you can do is feed the "realtime" navigation data to the camera. If it is able to record this information in the metadata of the images (the EXIF), you will then be able to position the images in space with certain software.

For details about the DMI/ Ext socket, see the appendix of the Trimble MX7 Installation and Operation Manual.

Trimble sells this part as a Wireless USB adapter (WLAN) (P/N: T000685). The model used is TP-Link TL-WN823N. As of today, three hardware versions of this model have been released: V1, V2 and V3. According to the manufacturer’s website, the hardware version can be seen at the end of the FCC ID engraved on the device:

If there’s no V2 or V3, it’s because it’s a V1.

When connecting the Ethernet cable to the laptop, you will see a network icon appearing in the bottom right, showing a connection to an “unknown network”. If it is not installed, no connections could be established, just like if you connect an Ethernet cable which is not connected at the other end.

No.

Yes, it is not supported anymore by Trimble. Customers have to use Trimble Business Center - Survey Advanced, where all the conversion functionalities have been implemented.