Long range radio systems using 900MHz including the Frsky R9M and TBS Crossfire typically use a single dipole antenna on the receiver. The optimal antenna positioning can be different from traditional 2.4GHz systems with diversity monopole antennas on the receivers.
This tutorial explains how to setup the R9M TX module and R9 Mini receiver in Betaflight. The R9M is a long range module that operates on 900MHz band. It’s compatible with most Frsky’s radios including the Taranis X9D-Plus, QX7 and Horus X10.
The Frsky Taranis X-Lite TX has the shape of a gaming controller. It’s much smaller than traditional radio transmitters, the compact size means you can take it virtually anywhere. In this review we will check out the build quality, features, and how to set up the X-Lite for the first time.
We will test and compare the latency of Frsky R9M-Lite with that of the TBS Crossfire. Both are great 900MHz RC systems for long range and many are having trouble deciding which to get. With latency being one of the main considerations we hope you find the test useful.
So you want to flash Frsky RX firmware, but too lazy to take your quad apart? You can flash it through your flight controller, just like how you flash your BLHeli ESC’s using FC pass-through.
The Frsky X-Lite has an external module bay that is too small to fit standard size JR modules including the TBS Crossfire. Are we giving up that easily? HELL NO! A few people have been taking the X-Lite apart as soon as they received the the first batch, and trying to find out whether they can get it working.
There are a whole range of radio receivers (RX) 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 FrSky’s R9 receiver is designed to work with the Frsky R9M long range module, however it was just a bit too big for mini quads. Therefore Frsky made a smaller version, the R9 Slim, which we will check out in this review.