GEPRC RAD VTX 5.8G 2.5W User Manual

Specifications

Features

• 2.5W super-power, suitable for Long Range flight with good stability.
• Six power levels: 25mW, 200mW, 600mW, 1600mW, 2500mW, and Pit mode.
• Two-layer board cooling structure, separating power BEC and main-board, reducing and shielding from internal interference.
• Temperature control protection function to prevent high-temperature burning.
• Wide voltage input, supports 7V-36V voltage input.
• VTX control protocol is IRC Tramp, supporting OSD parameter adjustment.
• VTX built-in microphone for real-time return of drone sounds.
• Has 3 regional frequency tables to meet the needs of various regions.
• Two function buttons and three indicator lights for easy operation.
• Mounting holes are 30.5mm x 30.5mm.

Introduction and Board Layout

The GEPRC RAD VTX 5.8G 2.5W features a compact design with clearly labeled ports and indicators.

Board Layout:

• MMCX Socket: Located at the top, for connecting the antenna.
• BUTTON: Two function buttons are present, both offering the same functionality for easy operation.
• AGC MIC: Input for the built-in microphone.
• Ports on the bottom:
  • GND (Ground)
  • 5V OUT (5V output for camera/fan)
  • IRC (IRC Tramp signal)
  • VIDEO (Video signal)
  • DC 7-36V (Power input)
  • GND (Ground)
• Indicator Lights:
  • Power indicator light (Red)
  • Band indicator light (Green)
  • CH indicator light (Blue)

The board is marked with "Pit-25-200-600-1600-2500mW" indicating the available power output modes.

Configuration: Setting Channel, Band, and Power

The VTX can be configured using button presses. Press and hold for 3 seconds to enter selection modes.

1. How to set Channel:

2. How to set Band:

3. How to set Power:

WARNING:

• Install the antenna before use.
• To prevent overheating, ensure constant airflow and a well-ventilated environment. Install a cooling fan if operating in confined conditions.
• The 5V Output is intended only for a Camera or Cooling Fan. Do not connect Power Input / Battery to the 5V Output port, as this will damage the VTX.

How to Use IRC Tramp

This section details the setup process for using the IRC Tramp protocol with your flight controller.

1. Connect IRC Tramp Port:

Connect the IRC Tramp port on the VTX to a free UART-TX port on your Flight Controller (FC). The connections typically include IRC signal, Video signal, 5V Out, and Ground.

Diagram Description: A schematic shows the VTX's IRC Tramp, VIDEO, 5V OUT, and GND ports connecting to the FC's UART-TX port.

2. Configure BetaFlight:

Open BetaFlight software. Navigate to the 'Ports' tab. For the UART-TX port connected to the VTX's IRC port, select 'VTX (IRC Tramp)' from the peripherals dropdown menu. Save the settings.

Screenshot Description: The BetaFlight 'Peripherals' tab is shown, with 'VTX (IRC Tramp)' selected for a UART-TX port. Other options include Disabled, Blackbox logging, VTX (TBS SmartAudio), Camera (RunCam Protocol), etc.

3. Configure OSD:

In BetaFlight, go to the 'Configuration' tab. Under 'Other Features', turn the 'OSD' option ON for 'On Screen Display'. Save the settings.

Other Features:

• AIRMODE: Permanently enable Airmode
• OSD: On Screen Display
• DYNAMIC_FILTER: Dynamic gyro notch filtering

4. Load Configuration File:

Navigate to the 'Video Transmitter' tab in BetaFlight. Load the configuration file (e.g., 'Table.json') from your computer and save the settings. This file can typically be downloaded from the GEPRC website.

Visual Description: A button labeled "Load from file" is shown, next to an icon representing a file named "Table.json".

5. Navigate OSD Menu:

Turn on your remote control. Follow the specified stick movements to enter the OSD menu: THR middle, YAW left, PITCH up. Use the PITCH stick to move the cursor up and down, and the ELE stick to move right to select the next item. Finally, save and exit the menu.

Diagram Description: Two modes (Mode-2 and Mode-1) are illustrated showing the stick movements for OSD navigation. Mode-2 typically involves THR middle, YAW left, PITCH up to enter, PITCH for up/down, ELE for right.

OSD Menu Structure:

The OSD menu provides access to various settings:

• MAIN: PROFILE, FEATURES, OSD, FC&FIRMWARE, MISC, SAVE/EXIT.
• FEATURES: BLACKBOX, VTX, LED STRIP, POWER, FAILSAFE, BACK.
• TRAMP: Displays current status like Band, Channel (FREQ), Power. Options include PIT, BAND, CHAN, (FREQ), POWER, T(C), SET, BACK.
• CONFIRM: Prompts for confirmation (YES/NO).

Frequency Table

Warranty Policy

1. If the VTX is damaged or has an unknown issue, please contact GEPRC. GEPRC will strive to resolve the issue quickly.
2. Any impact damage, product liquid damage, high-temperature burn, or other artificial damage is not covered by the warranty.

PS:

1. All components have been strictly inspected and tested before shipping.
2. If you encounter any problems, please cooperate with GEPRC engineers to find solutions. (E-mail: support@geprc.com)

Package Contents and Contact Information

Included:

• 1 x GEPRC ROS VTX 2.5W
• 1 x 5.8G Antenna MMCX 72mm
• 1 x MMCX connector to SMA connector 82cm
• 1 x GH 1.25-6P connector cables 150mm
• 1 x Matching screw package

Contact:

For support and more information, please visit:

• Website: http://geprc.com
• Official Website: www.geprc.com
• Manuals & Support: geprc.com/support
• Facebook: facebook.com/geprc
• Instagram: instagram.com/geprc
• YouTube: [GEPRC YouTube Channel]

Note: QR codes for social media and website links are excluded from this HTML version.