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The SpeedyBee TX800 5.8GHz VTX is a compact, high-efficiency video transmitter with variable output power from 25mW up to 800mW and a Pit Mode. It supports IRC Tramp, so you can change settings remotely from the flight controller, or use the simple push button on the VTX if you prefer.
The transmitter measures only 28x28mm and suits a stack with 20x20mm M2 mounting holes, making it a natural fit for modern racing and freestyle builds.
The antenna connection is MMCX, and the listing states that an SMA pigtail adapter and a dipole whip antenna are included, so you can connect a standard SMA antenna straight away.
25mW to 800mW: select PIT, 25, 200, 400 or 800mW output.
Pit Mode: power up and change settings with minimal transmit power.
IRC Tramp support: change settings from the flight controller.
Push-button control: adjust settings on the VTX itself.
Built-in microphone: carry audio with your video.
28x28mm body: fits a 20x20mm M2 stack.
Pit Mode drops the transmit power to a very low level so you can turn the VTX on and change channels on the bench without disturbing other pilots. IRC Tramp is a control protocol that lets the flight controller (and through it the OSD menu or radio sticks) change the VTX channel and power.
Together these features make it simpler to fly at events with many pilots and to adjust the video link without opening the aircraft.
Racing quads that need to change channels quickly
Freestyle drones with a 20x20 stack
Group flights where low power and Pit Mode are useful
Replacing a low-power VTX for more range
Builds that use an SMA whip antenna via the pigtail adapter
The TX800 takes 3.7 to 5.5V input, outputs 5V at up to 250mA and draws about 250 to 750mA at 5V while working. It has a 75 ohm video input impedance and an MMCX antenna connector.
The product page notes an SMA pigtail adapter and a dipole whip antenna with the VTX; the package line reads simply 1 x SpeedyBee TX800 5.8GHz FPV transmitter, so confirm inclusions in the product photos.
Frequency channels: 5.8GHz 48CH
Output power: PIT / 25mW / 200mW / 400mW / 800mW
Working current: 5V @ 250-750mA
Voltage out: 5V @ max 250mA
Voltage in: 3.7-5.5V
Video input impedance: 75 ohm
Antenna connector: MMCX
1 x SpeedyBee TX800 5.8GHz FPV transmitter
Racing and freestyle FPV pilots who want an 800mW VTX with Pit Mode and remote control, in a 20x20 footprint.
PIT, 25mW, 200mW, 400mW and 800mW.
28x28mm, suited to a stack with 20x20mm M2 mounting holes.
IRC Tramp is listed, and the title also mentions Smart Audio.
MMCX.
3.7 to 5.5V.
Yes, a built-in microphone is listed among its smart features.
| Brand | SpeedyBee |
|---|---|
| Antenna Connector | MMCX |
| Frequency | 5.8GHz 48CH |
| Input Voltage | 3.7-5.5V |
| Power | PIT/25/200/400/800mW |
| Protocol | SmartAudio, IRC Tramp |
| Working Current | 5V @ 250-750mA |
| Selling unit | PCS |
