f = frequency in hertz (Hz) <br>
λ = wavelength in meters (m)<br>
c = speed of light (299’792’458 299.792.458 m/s)<br><br>[[Datei:Wavelength_of_868.PNG]]<br>Die Antenne muss also 34.5 cm lang sein oder ein 1/2λ = 17.25, 1/4λ = 8.63, 1/8λ = 4.31, ...
== LoRa Bibliotheken ==