Eachine TX805 5.8G 40CH FPV Transmitter VTX for RC Drone

Eachine TX805 5.8G 40CH FPV Video Transmitter — Crystal-Clear FPV for Your RC Drone

Take your FPV drone flying experience to the next level with the Eachine TX805 VTX. This compact, stackable 5.8GHz video transmitter packs four selectable output power levels, Smart Audio support, OSD configuration via Betaflight, and a handy LED display — all in an ultra-lightweight 8g form factor. Whether you're a seasoned racer or a hobbyist pilot, the TX805 delivers reliable, low-latency video transmission on 40 channels across 5 bands.

Key Features

• 5.8GHz, 40 Channels / 5 Bands — Wide channel selection minimises interference at busy flying events
• Switchable Output Power — 25mW / 200mW / 600mW / 800mW selectable at the press of a button
• Pit Mode (0.01mW) — Ultra-low-power standby mode lets you change channels and power settings without interfering with other pilots; exit via button or Betaflight OSD
• Smart Audio — Configure channels, bands, and power levels directly through your flight controller's OSD
• OSD Support via Betaflight FC — Full configuration from your goggles; no fumbling with tiny buttons mid-session
• One-Button Frequency & Power Setup — Simple short-press or long-press sequences to cycle through channels and power levels
• Power Failure Memory — Remembers your last settings after power loss so you're always ready to fly
• LED Status Display — Tri-colour LEDs (Red / Green / Blue) give instant visual feedback on band, channel, and power level
• Wide Input Voltage — Accepts 7V–24V input; supplies a regulated 5V output directly to your FPV camera
• Solid MMCX Antenna Connection — Includes a brass MMCX dipole pigtail antenna plus RP-SMA/SMA adapter cable
• Stackable Design — 30.5mm mounting-hole pattern fits standard FC/ESC stacks; compact 36×22×5mm footprint

Specifications

What's in the Box

• 1 × Eachine TX805 5.8G 40CH 25/200/600/800mW FPV Transmitter VTX
• 1 × Adapter connector cable (RP-SMA or SMA Female)
• 1 × MMCX Pigtail Antenna
• 1 × Instruction Manual

Note: Batteries are not included.

How to Control — Quick Reference

Channel Select: Use short button presses to cycle through 8 channels per band. Blue LED lights solid for CH1; flickers once for CH2–CH8.

Band Select: Hold button for 2 seconds — Red LED flashes. Short-press to step through 5 bands.

Power Select: Hold button for 4 seconds — Red LED flashes. Short-press to cycle 25mW → 200mW → 600mW → 800mW (all three LEDs light together at 800mW).

Pit Mode Exit: Hold button for 12 seconds until all 16 LEDs turn off then light back on, or exit via Betaflight OSD.

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Frequently Asked Questions

Q: What output power levels does the Eachine TX805 VTX support?

A: The TX805 supports four switchable output power levels — 25mW, 200mW, 600mW, and 800mW — selectable via a single button or through Betaflight OSD using Smart Audio. Lower power is ideal for close-range or pit-area flying; 800mW provides maximum range for long-distance FPV sessions.

Q: Is the Eachine TX805 compatible with Betaflight and OSD configuration?

A: Yes. The TX805 fully supports Smart Audio, allowing you to configure channels, bands, and power levels directly from your Betaflight flight controller's OSD menu. No additional tools or apps are required once your FC wiring is set up.

Q: What is Pit Mode and how do I use it on the TX805?

A: Pit Mode sets the transmitter to an extremely low output (~0.01mW) so you can power up your quad in a staging area without interfering with other pilots on the same frequency. You can change channel and power settings while in Pit Mode — they take effect when you exit. To exit, either hold the button for 12 seconds or use the Betaflight OSD option.

Q: What antenna connector does the TX805 use?

A: The TX805 uses an MMCX antenna connector. The package includes an MMCX pigtail antenna and an adapter cable (RP-SMA or SMA Female) so you can connect most standard FPV antennas right out of the box.

Q: Does the TX805 fit a standard 30.5mm stack?

A: Yes. The TX805 is designed with a 30.5mm mounting-hole pattern, making it fully compatible with standard flight controller and ESC stack configurations. Its compact 36×22×5mm profile and lightweight 8g body (excluding antenna) ensure it won't add noticeable bulk to your build.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.