RadioMaster TX16S Mk3 review

All of us aspire to radios which are flexible and reliable... which is why I can't complain - my radio has served me flawlessly for the last five years. That radio is the RadioMaster TX16S Mk1. Together with its successor the Mk2, the radio has been a huge hit for RadioMaster. 

Times change, though, and the design is starting to show its age. In particular, the F7 processor, as used on both the Mk1 and Mk2, struggles to keep up with the latest versions of EdgeTX. (This, by the way, is why I'm using OpenTX on my Mk1)

Enter the TX16S Mk3, RadioMaster's new flagship radio with Gemini RF module and H7 processor. This radio promises to transform the EdgeTX experience. Read on and find out if it's a worthy successor!

RadioMaster TX15 review

Since their beginnings just five years ago, RadioMaster have built an enviable reputation for their well designed and reasonably priced transmitters.

The TX15 is their latest unit - and rather interesting it is, too. Marrying a fast STM32 H7 processor with the latest EdgeTX 3.0, the TX15 provides a glimpse into the future of open source RC.

In this review, I'll explore the TX15’s features and take it for a test flight with an F3F sailplane. So read on!

Tip: to see images at full resolution, click on the image, then open in another tab and use the browser's zoom control.

TX15 MAX with alternative shoulder switches

Radiomaster AG01 Nano gimbals review

The Radiomaster Pocket is a wonderfully versatile little transmitter - it can be used for anything from cheap foamies to high-value moulded models.

If it has a weakness, it's the rather ordinary gimbals - with their all plastic construction, they lack the precision feel of the AG01 CNC gimbals which I have come to love on the TX16S.

Well, it seems that Radiomaster have an answer to this: a CNC gimbal specifically designed for the Pocket. They've called it the AG01 Nano. (Not to be confused with the AG01 Mini, which targets the Zorro and TX12.)

AG01 Nano gimbal

FrSky X14S - a sport/competition radio with TW/Twin support

How times change! FrSky, once champions of open source, have almost completely swivelled to Ethos, their new and proprietary operating system. Their range of transmitters has grown, too, split between the Tandem (2.4GHz/900MHz) and Twin (2x2.4GHz) families. 

The TX14S is one of their more recent radios. With compact dimensions and support for Twin, the TX14S appears - on paper at least - to be a good choice for soaring and electric flight. So, when FrSky offered me a unit to review I needed no persuading.

FrSky X14S

After a few weeks with the unit, has the X14S lived up to expectations? Read on and find out!

Radiomaster GX12 with ELRS Gemini: a review

Radiomaster GX12

Once in a while a transmitter comes along which is different and interesting, and it’s this kind of radio that I love to review.

Enter the Radiomaster GX12 - small in size yet with several novel features, including gimbals with 3D Hall sensors, and support for Gemini transmission modes.

But  just how good is the GX12 for sailplane and electric applications? And what are the benefits, if any, of Gemini? Read on and find out!

Time for a refresh: Mike's OpenTX/EdgeTX Clinic

It's hard to believe that ten years have passed since I created OpenTX Clinic! 

At the time, FrSky had just launched the Taranis X9D with a novel operating system called Open9X soon to be renamed OpenTX. Since then both OpenTX and its offspring EdgeTX have exploded in popularity, and the website has expanded with tutorials, templates and Lua scripts.

An introduction to ELRS

[updated 2025-12-09 for ELRS v4)

ELRS is a bit of a sleeper - it's been around for a while, but if you're  a fixed wing/LOS (line of site) flyer, then you may not have heard of it. You soon will though, especially if you use EdgeTX or OpenTX. 

So what exactly is ELRS, and what do you need to get started?  Read on, while I take you on a tour. Since ELRS is still evolving I won't cover everything in detail. Instead, I'll provide a overview of the important bits with links to the official documention.