This system is composed of two devices : the master module that stays on the ground with the pilot. And the slave module (on board of the UAV). The aim of the system is to make the the FTS completely independent from the primary flight transmitter. The use of another technology provides redundancy and dissimilarity with the transmitter and the datalink of the UAV, which usually operate on the frequency band of 2.4 GHz.
The system is composed of :
A master module, portable and light, equipped with a switch with aeronautical safety cover for the activation of the system, all enclosed in a die-cast aluminum housing unit with its own Li-Po battery. This unit can be charged via a pin connector and a dedicated mini Li-Po charger (included).
A slave module, light weight and compact, which is to be mounted on the UAV. This can be powered directly from the FTS board or with a separate battery.
Numerous tests were performed under real conditions with a radius of 5 km and the system has never suffered any link loss.
The FTS system complies with the indications described in Note 2 of the Explanatory ENAC (Italian FAA) 12/17/2014 for aerial work operations in mixed scenarios. The system is individually tested and supplied with the following modules :
Portable transmitter ready for use
Receiver already synchronised with the Tx antenna
2s LiPo 850 mAh
The system is composed of the Master module (remote control for the pilot) and the Slave module (installed on the UAV). The radio communication between the units takes place on the 869 MHz at 500 mW. A license-free band, in compliance with the European regulations CEPT 70-03. The radio communication is also secured by 128-bit encryption that prevent any rogue use of the system by third parties. An important feature of the system is the Keep-Alive, which allows the Master module to poll every second to check the link between the Master and Slave. The keep-alive signal is displayed by the white LED. When the Master doesn't receive a signal from the Slave, it emits an audible alarm and flashes a white LED. As soon as the link is restored, the alarm goes off and the connection is resumed.