Radiomaster TX15: compact RadioMaster radio with serious upgrades — should you buy?

Alex -

Joshua Bardwell tests the Radiomaster TX15 and finds it more than a Boxer with a touchscreen. TL;DR: faster CPU, better gimbals, dual‑band ELRS, and sensible modern fixes.

Bardwell opens the unboxing and discloses the review unit came from Radiomaster. He donates the equivalent value to the FPV Freedom Coalition to avoid perceived bias.

The TX15 resembles the Boxer in size but adds a large colour touchscreen like the TX16S. The similarity hides many internal and ergonomic changes.

RadioMaster put an H7 processor into the TX15. Menus respond instantly and the touchscreen feels snappy. That CPU gives developers headroom for complex Lua scripts and heavy mixes.

The Max trim ships with AG02 full‑metal CNC gimbals. They feel rigid and smooth, with a lighter, damped stick action compared with AG01 and standard Hall sensors.

AG02 adds left‑to‑right endpoint adjustment via front screws. That completes the four‑axis tune set and lets pilots tailor throttle throw to hand size and racing ergonomics.

Shoulder switches are low‑profile like the Boxer but swap easily to standard toggles with supplied dummy plates. RGB rings around the gimbals are programmable via EdgeTX special functions.

Power uses a 2S battery tray or larger 21700 packs. The TX15 finally includes an internal balance circuit for safer internal charging. The top USB port doubles as charger and PC interface.

RadioMaster dropped the screw‑on SMA and used a folding antenna like the Pocket radio. It trades easy aftermarket swaps for durability and fewer broken antennas in backpacks.

The radio includes an accelerometer and a microphone on board. The accelerometer is programmable for tilt controls or telemetry triggers. The microphone currently has no EdgeTX feature.

TX15 ships with a built‑in ExpressLRS module supporting both 2.4 GHz and 900 MHz. Packet rates hit 500pps on 2.4 GHz and 1,000pps on low band, so latency remains competitive.

The radio does not include Gemini (dual‑radio simultaneous streams). Pilots who require Gemini or Crossfire can fit a JR‑bay module in the back. See Radiomaster Nomad details at https://www.unmannedtechshop.co.uk/2024/09/22/radiomaster-nomad-the-ultimate-elrs-module-for-everyone/.

The TX15 moves to 4GB internal flash instead of relying solely on SD cards. That reduces SD‑card failures and speeds menu/script load times. Placing an SD card still takes precedence over internal storage.

Ergonomics get a tidy upgrade. The back shape fits the palm better than the Boxer. The TX15 remains slightly taller than the GX12, so bag packing may require a dedicated pocket.

Price sits around US$140 for the standard and US$200 for Max from RadioMaster, with some retailers charging tariff‑adjusted rates. The Max mainly adds metal buttons and AG02 gimbals.

FAQ

Does the TX15 support Gemini?

No. The TX15 supports dual‑band ExpressLRS but not Gemini's simultaneous dual‑radio stream. Add a JR bay Nomad module to get Gemini-like redundancy. See module notes: https://www.unmannedtechshop.co.uk/2024/09/22/radiomaster-nomad-the-ultimate-elrs-module-for-everyone/.

Can you use other protocols like Crossfire?

Yes. The TX15 exposes a JR module bay. Install a Crossfire or other module to keep legacy receivers working.

Do AG02 gimbals fit other radios?

Yes. AG02 is a drop‑in replacement for AG01 gimbals. They fit any radio that accepts AG01 hardware.

Will the TX15 charge while running a simulator on USB?

Yes. The single USB port both charges and acts as a USB HID for simulators. You can fly sims and charge with one cable.

Conclusion

The TX15 modernises the Boxer concept. It adds a faster H7 CPU, AG02 metal gimbals, dual‑band ELRS, an internal balance circuit, and onboard storage. Those fixes target common complaints.

Who should buy it: pilots who want a compact radio with a colour touchscreen, strong gimbals, and built‑in ELRS. Who should not: pilots who need sliders, many momentary switches, or baked‑in Gemini.

Takeaway Box

  • TX15 pairs an H7 CPU with AG02 gimbals—menus respond and sticks feel buttery.
  • Built‑in ELRS supports 2.4 GHz and 900 MHz at competitive packet rates—no Gemini onboard.
  • Internal flash replaces flaky SD cards and keeps scripts loading quickly and reliably.
  • Swap shoulder flats for standard toggles. RGB rings and accelerometer add programmable flair.

This article was based from the video Radiomaster TX15: Not my daily driver. Should it be yours?