. . . the US Army ordered its own troops to stop using drones made by Chinese manufacturer DJI because of alleged "cyber-vulnerabilities".
. . .
The UK's Ministry of Defence told the BBC it had not purchased any of DJI's drones and had nothing further to add on the subject.


Use ESC plus UBEC

ESC stands for Electronic Speed Controller. It converts the PWM signal from the flight controller or radio receiver, and drives the brushless motor by providing the appropriate level of electrical power.

BEC stands for Battery Elimination Circuit. It’s just a fancy name for voltage regulator, which converts main LiPo battery pack voltage to a lower voltage (e.g. 2S 7.4V, 3S 11.1V or 4S 14.8V to 5V). BEC is usually built into ESC, and as the name suggests, it eliminates the need for a separate battery to power the 5V electronic devices.

UBEC stands for universal BEC or sometimes ultimate BEC. It’s used when ESC doesn’t have built-in BEC, or standalone power system is required. They generally are more efficient, more reliable and able to provide more current than BEC. The UBEC is connected directly to the main battery of the multicopter, the same way as an ESC.


1st Recomendation

-------- Forwarded Message --------
Subject: BYOD - Land Surveying Drone Platform
Date: Wed, 26 Jul 2017 12:22:08 +0000 (UTC)
From: Mike Inwood Reply-To: Mike Inwood To: Roger Lovejoy
Hi Roger,
Good to speak with you yesterday.
As per our conversation for a system needed for short range land surveying, please find below to some of the key products I would recommend to construct a suitable platform.
We discussed various flight controllers including the DJI Naza M V2, Pixhawk 2 and EagleTree Vector and I understand that you had a concern about using closed source flight controllers and wanted a more flexible option. The Pixhawk and the Vector would be more in that direction but to replicate the results of the Naza would not come as easily.
My advise would be to opt for the Naza, due to your very simple requirements and expectations of the system, and I also appreciate perhaps your knowledge is limited in the R/C world currently. I don't necessarily see a huge advantage for you in opting for the more complex system.
Any questions welcomed.
View and manage this ticket online:
Build Your Own Drone Ltd ·


Unless there is good control over the camera, which will need a gimbal and extra software etc then there may be a small forward looking fixed camera for navigation.

Fixed camera: The same criteria also exist for the surveying camera
Resolution/Zoom: Live video feed
Weight: 88g
Power usage: Own power
Manufacturer: Hero4 Black USA


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