Frsky Receivers RX Options for Mini Quad

There are a whole range of Frsky receivers on the market and we have rounded up the ones suitable for mini quads and micro quads in this article. We will explain the differences in spec and hopefully it can help you choose the one for your next build.

The radio receivers mentioned below are Frsky Taranis compatible RX, that work with Frsky radio transmitters (TX) such as the Taranis X9D, X9D Plus, Q X7, Horus and X9E .

There might be other 3rd party RX’s designed for Frsky radio system we have not covered in this guide, please let us know in the comment section.

You might be also interested in the following beginner’s guides related to RX:

Tutorials on how to use Frsky RX, tips and tricks:

R-XSR

  • Weight: 1.5g
  • Dimension: 16x 11 x 5.4mm
  • Receiver Protocol: SBUS – 16ch
  • Telemetry: Yes – SmartPort

The R-XSR is the latest Frsky receiver as an upgrade to the popular XSR. It’s been made lighter and smaller yet obtains all the same performance and features as the XSR and X4R-SB receivers. Unlike the XSR, the antennas are connected with tiny IPEX connectors

D4R-II

d4r-ii receiver

  • Weight: 5g
  • Dimension: 40 x 22.5 x 6mm
  • Receiver Protocol: PPM – 8ch
  • Telemetry: Yes – non-SmartPort

The D4R-II is one of the oldest RX in the mini quad world. It was made popular because of the compact size, and support for PPM (it only requires 1 cable for 8 channels). However we now prefer SBUS receivers for the lower latency.

X4R-SB

x4r-sb receiver

  • Weight: 5.8g
  • Dimension: 40 x 22.5 x 6mm
  • Receiver Protocol: SBUS – 16ch
  • Telemetry: Yes – Smart Port
  • Product Page

The X4R-SB has nearly identical size to the D4R-II. It was one of the most popular RX’s for mini quad because of the SBUS and SmartPort Telemetry supports, until smaller RX came along.

XSR

frsky xsr rx XSR frsky receiver size comparison

  • Weight: 3.8g
  • Dimension: 26 x 19.2 x 5mm
  • Receiver Protocol: SBUS – 16ch
  • Telemetry: Yes – SmartPort

The XSR is a size/weight upgrade of the older X4R-SB RX. It has exactly the same capability as the X4R-SB, but it’s considerably smaller and lighter. However some owners of XSR claimed to have shorter range than the X4R, due to the incorrect length of active element in the antenna (the exposed part). Therefore make sure you check it’s cut to the correct 31mm length when you get yours.

XSR-E (XSR-M)

  • Weight: 1.8g
  • Dimension: 20 x 20 x 5mm
  • Receiver Protocol: SBUS (16ch) or PPM (8ch)
  • Telemetry: Yes – SmartPort

The XSR-M (or XSR-E) is basically the XSR redesigned on a smaller, square board that is stackable on top of a FC or PDB. It’s perfect for micro quads that uses 20mm FC and still allows Smart Port telemetry. The XSR-M is also capable in larger racing quad such as 5″ due its full features and smaller profile.

XM

Frsky XM RX  Frsky receivers size comparison - XM, XM+, XSR, X4R-SB

  • Weight: 1g
  • Dimension: 15 x 10 x 3.5mm
  • Receiver Protocol: SBUS – 16ch
  • Telemetry: No

The XM RX is made for micro builds that don’t require full range. It’s one of the lightest and smallest RX in Frsky’s radio receiver line. However it doesn’t have telemetry, only a RSSI output.

XM+

Frsky XM+ RX 

The XM+ is a diversity version of the XM (having 2 antennas), which allows it to perform full range comparable to the X4R-SB and XSR. It also supports 16-channel SBUS, but no smart port telemetry, only RSSI output just like the XM.

MicroFrX

 

  • Weight: 0.83g
  • Dimension: 13 x 17 x 5mm
  • Receiver Protocol: PPM – 8ch
  • Telemetry: No
  • Product Page

Third party micro size receiver designed specifically for micro brushed quadcopters. The antenna (copper trace) is etched on the PCB to ensure maximum durability and weight saving, but range is very limited.

I used the MicroFrX receiver in one of my builds.

FuriousFPV LR1000

  • Weight: 1.4g
  • Dimension: 23 x 14 x 4mm
  • Receiver Protocol: SBUS – 8ch
  • Telemetry: Telemetry Hub
  • For more detail

A light weight and compact RX by FuriousFPV to provide decent range for mini quads (spec states 1Km). Although this RX supports SBUS, only 8ch is available.

FuriousFPV LR1000 Diversity

  • Weight: 2.2g
  • Dimension: 24.5 x 14 x 4mm
  • Receiver Protocol: SBUS – 8ch
  • Telemetry: Telemetry Hub
  • For more detail

This RX has similar feature and spec as the LR1000, except it has diversity antennas for more reliable signal.

3rd Party Frsky Receivers

There are more Frsky compatible RX on the market made by 3rd party companies, check out this list: http://bit.ly/frsky-rx

Edit History

  • May 2017 – Article created
  • Aug 2017 – added R-XSR

3 thoughts on “Frsky Receivers RX Options for Mini Quad

  1. Arne Petry

    Hi Oscar,
    One additional Option is the new frsky XSR-E.
    Basically an XSR-M with 15x15mm size, 1,8g weight.
    Regards,
    Arne

    Reply
  2. geoff vaughan

    Hi Oscar

    I am having real problems with my naze32 / x4r setup
    all was working fine until the other day when I lost the ability to arm . I went into betaflight receiver tag and was not getting any movement on any of the bars on the screen . so I thought it may be the naze. I brought a new one soldered it in and same problem . I then thought it mat be the x4r that had blown somehow and still the same problem. I have tried the new and old rx on both nazes and still the same problem . I have no idea where to look next other that the power supply but that seems fine as the boards power up and the motors chirp

    Reply

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