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Radio receivers

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.

BETAFPV radio ELRS Series (RX + TX)

BetaFPV is about to release its first radio communication system based on the ExpressLRS opensource project. ExpressLRS aims to achieve the best possible link performance in both speeds, latency, and range. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance. The BetaFPV ELRS Nano TX module will compatible with many popular remote controllers,...

FrSky receivers with PPM, CPPM and SBUS: XSR and D8

FrSky receivers: D8 and XSR
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...