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10.4 Best practice
Example use case (One Ground Radio – One Air Radio)
The following points describe a use case in which the conditions are set to be optimal. This includes
• Ground antenna/radio mounted on a pole or tripod, with the antennas pointing up (vertical), at least 2m off
the ground, and far away from metal objects such as cars, containers, railings, etc.
• The UAV is ying high enough, the line of sight of the datalink to the UAV is unobstructed
• The mission distance is kept adequate in order to have a reliable and strong enough signal
• Noise sources are kept at distance (Wi-Fi, Bluetooth, other EM Interference sources) or on other frequencies
High distance use case
As mentioned, for high distances, following measures can increase stability and performance of the datalink and signal
strength
• High gain ground antenna: Using this in combination with a high mounting point, and the antenna directed
towards the mission area, the signal can be improved signicantly.
• If the signal has good RSSI, but low SNR, try reducing the signal bandwidth. Less signal bandwidth reduces
susceptibility for noise, thus increasing SNR and performance
• Try reducing network size, in best case to a one-to-one connection. This reduces airtime and gives greater
performance to beamforming. Try to distribute the trafc via Ethernet network using the Silvus node as edge
node (this setup is also known as wired backbone).
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