Robofusion VT5805 5.8GHz 4W FPV Video Transmitter Module — 48CH Analog VTX, TBS SmartAudio, 25–4000mW

Overview

The Robofusion VT5805 is a high-power 5.8GHz analog video transmitter (VTX) module with selectable output up to 4W (4000mW) — built for genuine long-range FPV. It transmits a standard CVBS analog video signal on any of 48 channels across 6 bands (including Raceband), supports remote configuration over TBS SmartAudio, and pairs a machined aluminum heatsink case with a built-in cooling fan to sustain full power. A wide 7–36V input (2S–8S) and a regulated 5V camera output make it a complete, drop-in video link for long-range fixed-wing aircraft, mapping platforms, and industrial drones.

Features

• 4 power levels — 25 / 1000 / 2000 / 4000mW: bench-safe 25mW for setup, 4W for maximum range
• 48 channels, 6 bands (A / B / E / FS-IRC / RACE / LOW) — compatible with every standard analog 5.8GHz receiver and goggles
• TBS SmartAudio — change band, channel, and power from your flight controller OSD or radio (Betaflight, iNav, ArduPilot)
• Active cooling — aluminum heatsink plus built-in fan sustains 4W output
• Wide 7–36V input — runs directly from 2S–8S; regulated 5V output powers your camera
• One-button configuration — set everything in the field with LED band/channel readout, no computer needed
• Standard 30.5×30.5mm mounting, MMCX antenna connector, only 16.9g

Specifications

Getting Started

Wiring takes minutes with the single 6-pin connector: battery or PDB to VIN/GND, camera video to VIDEO, camera power from the regulated 5V VOUT, and (optionally) a flight-controller UART TX to RX_OSD for SmartAudio control. Full pinout and diagram: VT5805 Wiring Guide.

⚠ Never power on without an antenna attached — at 4W, reflected RF energy can permanently damage the output stage within seconds.

Configuration

Set channel, band, and power with the onboard button and LED indicators — see the button configuration guide and 48-channel frequency table. Or wire SmartAudio and control it from Betaflight, iNav, or ArduPilot: SmartAudio setup.

Documentation & Guides

• VT5805 User Manual — full specifications, wiring, frequency table, LED reference, FAQ
• Transmit power & licensing — operation above 25mW generally requires an amateur (HAM) radio license in the US/Canada
• ArduPilot Telemetry Setup — pair your video link with a Robofusion telemetry radio

Setting it up with an AI assistant? Read our AI setup guide first. It shows you how to point ChatGPT, Claude or Gemini at the official manual for this product, so the answers come from the real pinout and parameter names instead of guesses.

Package List

• 1 × VT5805 video transmitter module
• 1 × 6-pin ribbon cable
• 1 × MMCX-to-RPSMA extension feeder cable

Note: antenna not included. At 4W, antenna quality matters — pair the VT5805 with a well-matched 5.8GHz antenna rated for high power.

Technical Support

Questions before or after purchase? Email support@robofusion.net — answered by the Robofusion engineering team.