Nowadays most common radio receivers are with 6 and 8 channels but you can find versatile 2.4Gh radio systems with up to 16 channels.According to the adopted modulation, radio receivers can be categorized in:
PWM RX (Pulse Width Modulation);
PPM receivers (Pulse Position Modulation);
CPPM receivers (Combined PPM);
SBUS receivers (Serial Bus aka S.BUS);
DSM2/DSMX receivers (Digital System Multiplexer).
Radio receivers for drones and quadcopters
Just few of the best radio receiver brands: FrSky, Futaba/Spektrum, iRangeX, RadioLink, FlySky and Walkera.
Which type of receiver should you use?
Tough question, When it comes to choosing one I would personally suggest FrSky radio system for multi-rotors but I also like the much cheaper FlySky radio.
Today I will review two FrSky receivers, the mini D8 and the XSR ACCST. While the Micro Frsky D8 features PPM and SBUS, the FrSky XSR has S-Bus CPPM output.Those who are new in the field, let me say few words about radio receivers. Their main function is to interlink wirelessly the flight controller with the transmitter (remote controller). Additionally they can offer also...
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