ELRS Happymodel ES900TX Transmitter
The ELRS Happymodel ES900TX Transmitter is a powerful and compact radio transmitter for drones, designed to work with the open-source ExpressLRS (ELRS) protocol. This module combines long-range communication, minimal command transmission latency, and optimized power consumption, making it an excellent choice for FPV pilots, professional operators, and long-distance applications.
Key Advantages
- ExpressLRS (ELRS) protocol support — low latency and high control reliability.
- High communication range, suitable for extended and technically complex flights.
- Compact dimensions and low weight (49 g) for easy installation on various quadcopter designs.
- Quality package: module and antenna are included in the delivery set.
- Compatibility with standard SMA connectors, ensuring versatility in antenna selection.
Application Description
The ES900TX from Happymodel is suitable for aggressive FPV racing, professional aerial photography, search and rescue operations, and other scenarios requiring stable and fast command transmission. Thanks to ExpressLRS implementation, the pilot gets minimal control latency and a stable communication channel even in challenging conditions with interference, which reduces risks during high-speed maneuvering or at long distances.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | Happymodel ES900TX |
| Brand | Happymodel |
| Frequency | 915 MHz |
| Package Contents | module, antenna |
| Connector | SMA-F (antenna SMA-M) |
| Size (module) | 55x39x13 mm |
| Size (antenna) | 145x95x5 mm |
| Weight | 49 g |
| Purpose | Drones and quadcopters, FPV, long distances |
The module's dimensions of 55x39x13 mm and lightweight antenna allow the ES900TX to be integrated into various frames and designs without significantly affecting the aircraft's center of gravity. The SMA-F connector ensures quick antenna replacement and the use of compatible antennas to optimize range and radiation pattern characteristics.
This transmitter is notable for its reliability and ease of integration: the module and antenna are supplied in the kit, and documentation and technical parameters facilitate the selection of compatible components and correct setup. The ES900TX demonstrates excellent results with proper antenna configuration and an optimized power system.
The product belongs to the category: Drones and Quadcopters > Transmitters. The ELRS Happymodel ES900TX transmitter can be purchased in the Flash Army online store — all technical specifications for selecting compatible antennas and mounts are indicated in the product description.
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