GEPRC RAD Tiny 5.8G 400mW VTX Video Receiver

The GEPRC RAD Tiny 5.8G 400mW VTX is an ultra-compact and lightweight analog video transmitter engineered specifically for micro builds, tiny whoops, and toothpick configurations where installation space is severely restricted. Delivering 3 adjustable power stages up to a stable 400mW output ceiling, it balances consistent signal propagation with a thermal design optimized for short to mid-range flight boundaries. Weighing just 1.1 grams, the module utilizes a regulated 5V power input infrastructure, drawing minimal current so it can be powered directly from a flight controller's 5V rail. Outfitted with an active over-temperature protection loop, it preserves RF core stability by preventing component damage during high-temperature bench configuration.

Features

Ultra-Micro Form Factor: Engineered explicitly for high-performance tiny whoop and micro toothpick builds, maintaining a minimal structural footprint for versatile installation in tight spaces.

Low-Heat Signal Stability: Power consumption profile generates minimal thermal buildup, maintaining consistent RF output power for reliable short and medium-range operations.

IRC Tramp Telemetry Interface: Seamlessly integrates with standard IRC Tramp protocol fields, allowing pilots to modify video channels, bands, and power steps directly through the Betaflight OSD.

Intelligent Over-Heat Safety: Built-in temperature control monitoring actively safeguards internal processing circuits by throttling RF output stages if thermal safety thresholds are crossed to prevent high-temperature damage.

Regulated 5V Rail Integration: Low-draw circuit architecture runs entirely on a clean 5V DC supply, pulling safely from the flight controller's onboard 5V BEC line.

Single-Button Interface Logic: Features a simplified physical control button paired with 3 bright LED diagnostic indicators for instantaneous, tool-free field adjustments.

Specifications

Brand: GEPRC

Model Name: RAD Tiny 5.8G 400mW VTX

RF Carrier Frequency: 5.8 GHz Spectrum Core

Available Channel Matrix: 48 Selectable Channels (6 Frequency Bands)

RF Output Power Platform: PIT Mode / 25 mW / 200 mW / 400 mW (Adjustable)

Telemetry Integration Bus: IRC Tramp Protocol

Primary Operating Input Voltage: 5.0 V DC Regulated

Regulated Auxiliary Output: 5 V Rail Output for Camera Hardware

Video Input Impedance: 75 Ω

Analog Signal Encoding Format: PAL / NTSC Compatible

Antenna Interface Connector: Low-Loss Miniature U.FL Base

Physical Footprint Dimensions: 14.0 mm × 18.5 mm

Weight Parameter: 1.1 g (excluding external wiring harness and antenna)

Hardware Button & LED Interface Logic

Function Selection: Press and hold the physical button for 2 seconds to enter the menu loop. The active status LED will indicate the selected function (Blue for Channel, Green for Band, Red for Power). Once in the desired menu, short-press the button to cycle through the parameters.

Frequency Channel Shifting: Press and hold the button for 2 seconds until the Blue LED flashes. Short-press to cycle sequentially through channel profiles CH1 to CH8.

Frequency Band Group Shifting: Press and hold the button for 2 seconds until the Green LED flashes. Short-press to cycle through the 6 available bands (A, B, E, F, R, L).

Operational Power Scaling: Press and hold the button for 2 seconds until the Red LED flashes. Short-press to cycle through the output power stages: 1 flash = 25mW, 2 flashes = 200mW, 3 flashes = 400mW, continuous cycle = PIT Mode.

Notes

Before use install the antenna. Running a high-power VTX without an antenna will cause instant, catastrophic damage to the RF amplifier stage.

Fly with constant airflow and in a well-ventilated environment to prevent overheating. Ensure sufficient physical space around the VTX module during installation to allow proper heat dissipation.

Verify correct supply voltage and wiring polarity before applying power to prevent irreversible component failure.

Package

1 x GEPRC RAD Tiny 5.8G 400mW VTX Module

1 x 1.13mm Black Copper Tubular Antenna Assembly

1 x SH1.0 5-Pin Flexible Silicone Interconnect Cable

1 x SH1.0 3-Pin Flexible Silicone Camera Cable

1 x User Installation Manual