This chapter is about the visualization of the LoRa modulation and the representation of the LoRa 1
frame. 2
It will be quite short and it's not essential, but we really think that it helps to understand the 3
LoRaWAN specification because there are many terms that we often mixed up. 4
At the end of this chapter, we would like you to be able to make the difference between the LoRa radio modulation, 5
the PHY payload and the frame payload. 6
For that we'll make some demonstration to check the LoRa signal before the gateway. 7
We'll take the IP packet transmitted by the gateway to the network server. 8
And finally, we'll check the message received on the network server and the application server.