WiFi is radio communications. WiFi is just a word referring to band of radio frequencies (2.4 and 5.8 GHz) that has been allocated to wireless communications. It is also digitally modulated meaning the information transmitted to the drone and back is digital rather than analog. Being digital helps in many ways to eliminating interference from other sources. The
Tello transmitter and receiver have been designed work with each other using a standard gaming protocol. This allows us to use a gaming transmitter to control the bird. Theoretically the RF portions of the transmitter and receiver could be moved to another frequency slightly above or below the allocated band of frequencies while keeping the modulation scheme the same but those frequencies have been allocated to types of services and you would be out of band.
So if you had a different transmitter and receiver that was designed for drones you might be able to get it connected to the
Tello motors and provide some control of the drone. However, I would bet that transmitter and receiver would still be in the WiFi band of frequencies and you would not gain any advantage over the existing RF system currently used in the
Tello.
If you want a better more reliable control system you need something like DJI's occu-sync (sp) used in the more expensive birds. O
ccusync with the controller
uses 2.4000Ghz - 2.4835Ghz.
occusync constantly jumping
frequencies depending on conditions to avoid interference and it can even reduce its bandwidth from 20Mhz (full width) to 10Mhz (half width) to improve range and be more resistant against signal loss.. Even occusync is operating in the same WiFi band (2.4 GHz) as the
Tello.
I am an RF engineer, meaning, I designed the radio portion (transmitters and receivers) of digital radios. There is a device that called a modulator the connects to the transmitter and de-modulator that connects to the receiver. It is in those devices where the magic of digital communications takes place. I am not a modem design engineer. That is another skill altogether. The RF portion of a radio is simply a pipe to get the modulated signal (information) through the air.
~ Bill