Unmanned Tech Blog

Switching a TX16S MK3 from Mode 2 to Mode 1 is not just a menu tap. The sticks need mechanical changes first, or the radio ends up with the wrong centring and throttle feel, which is the sort of detail that ruins an otherwise good afternoon.

Changing a TX16S MKII from Mode 2 to Mode 1 is not just a menu tick box. The radio needs both mechanical and software changes, or the sticks will feel wrong and the channels will be mapped wrong, which is a fine way to irritate oneself.

This guide covers the full process, from moving the throttle behaviour to the right gimbal through to recalibration and final checks.

Caddx Ascent launched as cheap digital FPV with one rather awkward flaw, it did not feel finished. After several firmware updates, that verdict needs revisiting, because the system has gone from "probably not" to "actually, maybe".

Betaflight now has an autotune tool in the 2026 master branch, and yes, that is exactly the sort of sentence that makes FPV pilots perk up and then immediately distrust it. The feature already looks useful as an analysis tool, but the automatic PID recommendations are not yet at the stage where blind faith is a good life choice.

Voltara Gen2 is a full rewrite of the Voltara ESC stack, not a polite little patch with a new label slapped on. If you are trying to work out what changed, whether your hardware can use it, and how to migrate without turning setup night into a support-ticket hobby, this page is the straight answer.