The Radiomaster GX12 is a feature-rich, highly customizable transmitter that offers exceptional value for its price of just $169. This innovative design caters specifically to pilots seeking the ultimate blend of versatility and efficiency within a compact, travel-friendly format. The GX12 offers high-end features at an affordable price point, making it a compelling choice for a diverse range of consumers. In this evaluation, I’ll delve into the radio’s specifications, aesthetics, and performance, drawing on my firsthand experience to help you determine whether it’s the ideal device for your needs.
New to FPV? What fundamental concepts should you learn about radio transmitters?
The place to Purchase
The GX12 bundle comprises the following essential items:
- A sturdy carry case
- Display protector
- USB-C cable
- Stickers
- Guide
Batteries usually are not included. Why settle for mediocre batteries when you can acquire top-quality ones right where you need them?
Specs
- ExpressLRS redefines wireless communication with its innovative 2.4GHz and 900MHz dual-band solution, the XROSSBAND. This cutting-edge technology seamlessly integrates two frequency bands to provide unparalleled reliability and range in radio control applications. With the XROSSBAND, users can now enjoy seamless connectivity between aircraft, drones, or any other devices that require stable wireless communication.
- ExpressLRS 2.4GHz/868MHz/915MHz Gemini-X: The Ultimate Long-Range Radio System
- As much as 1W
- Sure
- Two high-gain, dual-band 2.4GHz and 900MHz omnidirectional folding antennas, designed for maximum coverage and flexibility.
- Approximately 390-1000 mA current draw varies according to RF output levels.
- EdgeTX
- Provides reception capabilities for up to 16 channels, depending on the receiver.
- 6.6 – 8.4V DC
- Two S-LiPo or Two 18650 Li-Ion Cells or 21700 Batteries (Not Included)
- USB-C
- 128×64 monochrome OLED show
- Precision-crafted GX01: 1000Hz, 3D digital CNC hall-effect gimbal systems featuring foldable, ergonomic control sticks.
- 3mm thread
- Lite module bay (Crossfire appropriate)
- EdgeTX and ELRS through USB-C
- Improved text: 512 MB of internal flash memory optimizes performance for EdgeTX systems.
- 183x148x78mm
- The high-capacity battery pack combines two reliable 18650 cells to deliver a potent 670 grams of energy.
Compact Design
The Radiomaster GX12 mirrors the same dimensions and format as my go-to everyday companion over the past 15 months, a familiar and reliable setup. I was eager to discover whether the new offering from Radiomaster would live up to its promise as an innovative alternative.
The GX12 boasts a flat backside, allowing it to sit comfortably on a desk without modification, standing at a height surpassing the T20S in this regard. Did you inadvertently find two M3 screw holes hidden beneath the surface? A valuable resource for enthusiasts and makers seeking to upgrade or customize their gear.
Initially, the GX12 presents itself as a compact, gamepad-like radio, but appearances can be deceiving – this miniature marvel is packed with an array of controls that belie its small stature. With its innovative foldable design, the gimbal’s compact size eliminates the need for bulky protectors, making it a seamless companion for travelers. Merely fold and go!
Why does Radiomaster persist in prioritizing colossal events over more nuanced offerings? With a subtle nod to Zorro’s swashbuckling flair, the GX12’s slightly protruding design element subtly compromises its sleek compactness. While the larger display screen’s dimensions enhance readability, presenting a notable advantage in practical application. While standing alongside its peers, the GX12 doesn’t appear significantly smaller; yet, its collapsible antennae and foldaway sticks render it surprisingly portable.
The GX12 tips the scales at 670g when powered by two 18650 batteries, making it a notable exception among radios in terms of weight, with only the Boxer and T20S models – both weighing around 650g – rivaling its heaviness.
For those seeking unparalleled portability, the Radiomaster Pocket presents a remarkable option, boasting the distinction of being not only the smallest but also the lightest iteration in the series, noticeably more compact than its GX12 counterpart.
There’s a new cotton deal on the market, identical to the Boxer.
Construct High quality
The GX12’s overall construction quality matches that of other Radiomaster models, such as the Boxer and Zorro. While its plastic housing lacks a premium tactile experience, the device’s sturdiness at a price point of $170 instills a sense of reassurance. The plastic exhibits a robust texture, showcasing unwavering resilience against rough handling with no audible signs of wear.
A notable drawback of the GX12 is its limited colour palette, with the current availability being largely confined to a single option: black. It would be beneficial for Radiomaster to offer additional colour schemes and unique enclosure options in the future, allowing them to appeal to a wider range of customers with diverse tastes.
Switches And Controls
While initially designed for FPV drone enthusiasts, the Radiomaster GX12’s true value lies in its adaptability as a versatile transmitter for fixed-wing pilots, thanks to its thoughtful design featuring trims, sliders, and a generous array of customisable switches and buttons. With these enhanced options, pilots leveraging iNav and Ardupilot methodologies now have a robust alternative at their disposal.
The GX12 features an impressive array of controls, boasting four switches and a precision-engineered slider at every accessible corner of the radio. While an overwhelming number of controls may seem excessive to many quad pilots, who might find that three or four switches are sufficient for their needs. For fixed-wing pilots accustomed to navigating intricate systems, the GX12 offers an abundance of control options to seamlessly manage advanced features such as flaps, landing gear, and flight modes, streamlining complex setup procedures.
The GX12’s intricate design comprises:
- Two (e.g., SE, SB)
- Two (e.g., SG, SA)
All four corners feature uniform button arrangements. I firmly believe that an excessive number of fleeting buttons creates a sense of disorientation and diminishes the overall user experience. Installing latching buttons on a few controls could significantly enhance the radio’s adaptability to diverse usage scenarios.
The GX12’s most notable feature is its interchangeable and upgradable swap panel design. These panels enable you to effortlessly remove the slider, providing a sleeker and more streamlined setup.
You could also substitute one of the three-position switches (SE or SF) with a two-position switch or another momentary switch. The included replacements are a part of the overall bundle.
Notwithstanding, one could argue that solely and merely might be interchanged. The remaining switches are permanently attached to the printed circuit board (PCB), rendering them irreparable.
The GX-12 option presents the familiar features commonly found on numerous Radiomaster radios. This time, they arrive equipped with RGB LED backlighting, offering a clear visual indicator that simplifies mode detection in reduced-luminosity environments. Additionally, the buttons remember their last state whenever you power on the radio again.
Gimbals
The GX12 introduces Radiomaster’s innovative CNC aluminum corridor-impact gimbals, featuring precision-crafted components. With this innovation, the GX12 has become impressively portable, making it a game-changer for travelers. To successfully fold the sticks, gently pull the stick finish back from the radio and fold it downwards.
The GX01 gimbals exhibit a comparable level of smoothness to those found in various Radiomaster radios, such as the Zorro and Boxer models, which are known for their stable and precise performance. The stick ends feature M3 threads, offering a potential upgrade path through the use of aftermarket alternatives. These are currently my top picks.
The GX01 gimbal modules are found integrated into the DJI Boxer or TX16S. This slight variation in throwing distance could potentially impact accuracy. Flying with the GX12 and T20S, equipped with an upgraded AG01, I consistently noticed a discernible difference in performance between the two. While I was once adept at executing precise freestyle strikes, I’ve found that the larger gimbals now feel more intuitive and refined in their control, thanks to the subtle adjustments.
Unfortunately, the GX12 does not support all other Radiomaster gimbals except for the GX01. It’s difficult to upgrade the GX12 with high-end stabilizers in the same way that you would a camera. While many appreciate the luxurious texture and silky performance of the AG01 gimbals, their absence can be a significant drawback for some users. Despite some limitations, the foldable design of the GX01 still offers a notable advantage in terms of portability.
Discovering the gimbal spring pressure to be unexpectedly tight outside of the field, I found the throttle required noticeably more force than my usual preference. Fortunately, modifications can often be achieved by accessing the rear holes of the radio device itself.
Stick Journey Adjustment
The pitch adjustment range can be fine-tuned by using the two hex screws located at the front of the gimbal, allowing for optimal alignment with the vertical axis.
Show and Menu Buttons
The display on the GX12 represents a significant improvement over its predecessors, the Boxer and Zorro, with notable enhancements in readability and aesthetics. The font is remarkably clear and easy to read, even under bright sunlight conditions. While lacking the captivating allure of a colour-coded touchscreen, this compromise yields a significant advantage in terms of battery life and simplified operation – a shrewd tactic indeed for FPV configurations.
The familiar design of the menu buttons and scroll wheel on the Radiomaster radios eliminates any surprises, with functionality that’s consistent across most models in this series. The service offers a high-end experience. The menu navigation seems instinctively natural and straightforward, with no unexpected twists.
On top of the radio lies a circuit that manages laptop connections and internal battery charging. Unlike earlier models from Radiomaster that feature two separate USB ports, this iteration represents a significant upgrade. The device features both a traditional headphone jack and a coaxial port for connectivity options.
Ergonomics
The GX12 features an ergonomic design with a textured surface that provides a secure grasp. Whether or not you’re an individual, the form caters effectively to both types.
Despite my initial reservations, I found myself desiring the gimbals to be slightly recessed within the radio’s frame. To compensate, I had to adjust the sticks to be shorter in order to achieve a higher gain to the endpoints; however, this came at the cost of some control precision.
Despite its slight weight advantage over the Boxer, the GX12 remains remarkably lightweight and easy to handle during extended flight sessions. The ergonomic design enhances the grip, reducing stopping fatigue during prolonged flights.
When opting for a neck strap, users will appreciate how the radio remains well-balanced, despite being slightly top-heavy. For fixed-wing pilots seeking to free up a hand during launch operations, a reliable neck strap is an essential accessory, though it’s often overlooked in individual purchases.
The Radiomaster GX12 boasts an abundance of switches, but their design sacrifices ease of use for compactness, with stiff and remotely positioned controls that can be frustrating to operate while gripping the gimbal sticks.
Typically, I had to remove my hand from the follow-up switch, requiring two fingers to prevent accidentally flipping the wrong one. While my objective is to achieve stability, compactness, and superior performance, this design seems to represent a middle ground that does not entirely satisfy these demands. It’s unclear whether Radiomaster or the may need been a more sensible choice.
EdgeTX
The Radiomaster GX12 comes with its pre-installed and functioning radio system. While EdgeTX requires an initial learning investment from novice users, its payoff lies in the unmatched versatility and control it affords over radio operations.
In a bid to mirror Jumper’s lead, Radiomaster has substituted the typical micro SD card format for its own EdgeTX system recordings, essentially replacing traditional SD card contents. This transfer eliminates the need for additional SD cards, significantly accelerating tasks such as file switching and firmware updates. The device’s 512MB internal storage exceeds expectations, rendering it perfectly suitable for most pilots’ needs; its sleek design resonates deeply with me.
ExpressLRS Twin-Band Expertise
The GX12 is equipped with a module capable of transmission on frequencies of 868 MHz for European Union/United Kingdom markets, and 915 MHz for United States markets. This innovative technology, referred to as know-how, guarantees a robust and reliable radio link by introducing redundant pathways, thereby ensuring uninterrupted transmission even in the presence of RF interference or challenging environmental conditions.
RadioMaster has seamlessly integrated its technology into the compact and affordable GX12, elevating this bundle with superior dual-band functionality. The module’s flexibility is further enhanced by its ability to operate on both 2.4GHz and 900MHz frequencies, providing a high degree of adaptability for those who prefer single-band transmission options?
The interior RF module operates using.
With a built-in lite module bay, you’ll also have the flexibility to implement various protocols compatible with TBS Crossfire whenever needed.
While the Gemini-X’s dual-band functionality may suffice for pilots flying over open areas with minimal interference, it’s worth noting that this setup might not be ideal in situations where frequency congestion is more likely to occur. Pilots have successfully pushed the boundaries of what’s possible with the 2.4 GHz ELRS module, boasting incredible ranges exceeding tens of miles, thus solidifying its reputation for dependability and resilience. When operating in areas prone to radio frequency interference (RFI), consider investing in a dual-band option for improved penetration.
Currently, restrictions exist in the marketplaces. The device features an innovative design that includes four antennas, strategically positioned to seamlessly integrate with the dual-band functionality.
The GX12 features a set of , specifically crafted for each frequency band, whereas these compact devices are convenient but lack the performance capabilities of dedicated single-band antennas.
Designed with efficiency in mind, the Radiomaster offers convenient mounting options for seamless integration with a range of popular antennas – from high-gain models to dedicated single-band devices.
Energy Consumption
The Radiomaster GX12’s peak power output varies significantly depending on the frequency and mode used.
- 0.49A
- 0.50A
- 0.55A
- 0.64A
- 0.90A
- 1.16A
- 1.68A – 1.82A
A significant spike in energy consumption occurs when, triggered by the fan’s activation at its default setting of 250 milliwatts, which can be modified through the LUA script. The fan’s current draw is approximately provided by the fan itself. The fan is relatively quiet but still audible when in operation.
Adjustments to display settings have a negligible impact on energy consumption, with the exception of a small discrepancy between the lowest and highest brightness levels.
Battery and Charging
The potential power source for the GX12 could be: A rechargeable 2-series lithium polymer (LiPo) or lithium ion (Li-ion) battery, boasting a compact and lightweight design.. The product includes a battery holder designed to fit both 3.7V and 18650 batteries, but is not compatible with 21700 cells. Eradicating the cells from the holder proved unexpectedly laborious. As I endeavored to succeed, my frustration was compounded by the unfortunate breaking of a fingernail. Fortunately, you’ll be able to easily remove the battery from the radio and recharge it via the USB-C port on primary power.
Batteries are typically not included in purchases, so customers seeking a reliable power source should consider purchasing them alongside their desired product from this reputable supplier.
Here are some 18650 battery options I’ve tested; you’ll find the results and recommendations below.
The battery compartment measures 80 x 44 x 23 mm in size, sufficient to accommodate Radiomaster’s 2S 5000mAh lithium-ion pack; unfortunately, it won’t fit the 6200mAh lithium-polymer pack employed in the Boxer. Discover top-quality power with our reliable and efficient 2S 5000mAh lithium-ion battery.
I estimate the battery life to be approximately six hours when utilising two 18650 3200mAh cells at a moderate 10mW output power. Will increasing the output energy to 100mW result in approximately 4.5 hours of operation? Will utilising the maximum 1000mW output energy significantly shorten battery life to approximately 100 minutes?
The built-in features assist various types of LiPo and Li-ion batteries. The Radiomaster has done away with the dual USB-C configuration (one dedicated to charging, the other for simulators) seen in their previous models. One streamlined handle simplifies the setup process.
- As much as
- Can one completely drain a 3200mAh battery?
Simulator Help
The GX12 integrates smoothly with any in-style setup. Once linked, it’s automatically recognized and appears in the system records without any issue, despite the unconventional naming pattern; its functionality remains unaffected by this anomaly.
Tear Down
The device is straightforward to disassemble, necessitating merely one screw to be removed.
Although there is a sticker on the underside of the radio housing, its removal will render your warranty invalid.
Typically, you wouldn’t want to turn off the radio.
- The gimbal spring pressure may be adjusted by drilling holes in the rear housing after removing the rubber grips. Removing the rear housing proves advantageous in terms of regulation, as the screws are situated rather deeply within, making them more accessible.
- The modular shoulder panels for the switches can be easily swapped without requiring disassembly of the entire radio. To easily modify the panel layout, simply remove the screws holding the panels in place and reconfigure or replace the switches as desired.
Furthermore, the printed circuit board (PCB) excels at offering superior protection against moisture while simultaneously enhancing its overall durability in challenging environments.
Drawbacks Abstract
While the GX12 outshines in numerous aspects, certain design trade-offs might dissuade select buyers from making a purchase. Right here’s a fast rundown:
- While smaller gimbals sacrifice some precision and control compared to larger ones found in the Boxer and TX16S, their portability improves significantly thanks to foldable sticks.
- At first glance, the GX12 appears to be almost as heavy as its larger counterpart, the Boxer, which may have a significant impact on comfort during extended flight sessions? Moreover, the radio’s flimsy design barely holds up, rendering its use with a neck strap unstable and compromised?
- While twin-band antennas are convenient, they generally lack the performance of specialized single-band antennas. While exterior single-band antennas are an option, they typically necessitate DIY modifications to install.
- While most switches have removable options, shoulder-mounted switches serve as permanent, non-interchangeable momentary buttons. Implementing adjustable toggle buttons would significantly boost adaptability.
- The large display dominates the sleek design, challenging the radio’s intended portability.
- The scarcity of reliable Wi-Fi coaching assistance presents a significant hindrance to many individuals.
Last Ideas: Does the GX12 Live Up to Its Hype?
The Radiomaster GX12 aims to deliver a comprehensive open-source radio experience, and in several key respects, it achieves this goal. This affordable and versatile transmitter offers impressive functionality in a portable, easy-to-move package. The strategic incorporation of and distinctive visuals effectively differentiates it within a competitive landscape.
Despite catering to an extensive audience, the concessions made may inadvertently limit the experience’s allure for certain patrons.
- Many individuals seeking straightforward solutions will stumble upon alternatives akin to these or others that are even more accessible.
- Could we favor full-sized gimbals to be present in radios, much like the DJI or Autel?
- Why the trusty remains my staple.
The GX12 stands unrivaled in its class. For pilots seeking versatility, this option offers a seamless transition from operating drones to fixed-wing aircraft. At a value of $169, combined with the standalone module’s price tag of $45, this offering presents a compelling package that will resonate with those who appreciate its comprehensive functionality.
When evaluating options that strike a balance between value and performance, the Radiomaster GX12 deserves careful consideration due to its competitive pricing.
