SPIDER Automation RX5808 Pro Dual Diversity 5.8GHz FPV Receiver | 40CH with OLED Display | For Analogue FPV Ground Stations
Description
The SPIDER Automation RX5808 Pro Dual Diversity FPV Receiver is a dual-channel 5.8GHz analogue video reception module designed for FPV ground stations and compatible video monitoring equipment. It integrates two RX5808 receiver modules into one board, providing two independent RF reception paths. The diversity arrangement evaluates the available reception paths and automatically switches between them according to signal conditions, helping reduce video interruptions caused by aircraft movement, changing antenna orientation and variations in RF signal strength.
The module includes a pre-installed OLED display and supports 40 FPV video channels across the stated 5705–5945MHz range. An automatic channel-search function assists in locating an active video signal, while the analogue AV output provides a connection to compatible FPV goggles, monitors or external ground-station display equipment.
Its dual-receiver architecture allows two antennas to be connected for different reception requirements. For example, an omnidirectional antenna can provide general coverage around the pilot, while a directional antenna can concentrate reception toward a selected flight area. The module operates from a 3.5–5.5V DC supply and is intended for analogue 5.8GHz FPV video systems.
Technical Features & Diversity Reception Architecture
- Two Independent RX5808 Receivers: The board integrates two receiver modules, providing separate RF reception paths rather than relying on a single antenna input. This forms the basis of the diversity reception arrangement.
- Automatic Diversity Switching: The receiver automatically switches between the two reception paths according to signal conditions. This helps maintain a usable video feed when one antenna receives a weaker or less favourable signal than the other.
- 40-Channel Frequency Support: Supports 40 FPV video channels across the stated 5705–5945MHz range, allowing selection of compatible analogue FPV video frequencies.
- Integrated OLED Interface: The pre-installed OLED display provides a local interface for receiver information and supported configuration functions without requiring a separate display module.
- Automatic Channel Search: The auto-search function assists in identifying an active compatible 5.8GHz video transmission, reducing the need to search manually through every available channel.
- Analogue AV Output: Provides analogue audio and video output for connection to compatible display equipment and FPV goggles.
- -90dBm Receive Sensitivity: The specified receiver sensitivity indicates the stated low-level RF signal reception capability. Actual video quality and usable reception distance depend on the complete RF system and operating environment.
- Compact Ground-Station Integration: The board combines the dual receiver arrangement and display in one assembly, helping simplify the construction of a portable FPV receiving system.
Dual Antenna Configuration & RF Reception
The principal advantage of a diversity receiver is its ability to use two separate antenna reception paths. During FPV operation, the aircraft changes orientation continuously, and the signal received by an antenna can vary as its position and polarisation change relative to the ground station. Reflections from nearby structures and other obstacles can also create multipath conditions that affect video reception.
With two receiver modules, the RX5808 Pro can automatically select the more favourable reception path according to its diversity switching mechanism. This can improve reception consistency compared with relying on a single antenna in changing flight conditions. It does not combine the two video signals into one higher-quality image; the system switches between the available receiver paths.
The dual antenna arrangement also allows different antenna characteristics to be used together. A typical configuration may use:
- Omnidirectional Antenna: Provides reception coverage around the ground station and is useful when the aircraft moves through different directions at relatively nearby distances.
- Directional Antenna: Concentrates reception in a selected direction and can be useful when the aircraft operates within a more focused flight area.
Both antennas should be compatible with the receiver’s RF connectors and the 5.8GHz frequency band. Polarisation matching between the transmitting and receiving antennas is also important for maintaining an effective video link.
OLED Display, Channel Selection & Video Output
The integrated OLED display is supplied pre-installed, providing a built-in visual interface for the receiver. The module supports 40-channel frequency selection and an automatic signal-search function, allowing the operator to locate a compatible active analogue FPV video channel.
The receiver’s analogue AV output is intended for compatible FPV goggles, monitors and ground-station video equipment. This is an analogue video reception system and should not be confused with digital FPV receiver systems or digital video decoding hardware.
The source identifies the board as an open-source receiver design. This can be useful for developers who want to investigate or customise supported receiver functions, subject to the available firmware, hardware documentation and software compatibility.
Electrical Configuration & Power Requirements
The RX5808 Pro operates from a 3.5–5.5V DC supply and has a stated current consumption of approximately 170mA. The power source should provide a stable voltage within this range and sufficient current capacity for the receiver during operation.
The module provides analogue AV output and is supplied with a Dupont cable and a right-angle 1×13 burgess connector pin for integration. The exact pin assignments, AV signal levels and connector wiring should be checked against the applicable board documentation before connecting the receiver to external equipment.
Applications
This dual diversity receiver is intended for analogue 5.8GHz FPV video reception in portable and fixed ground-station installations.
- FPV Racing Ground Stations: Dual-path video reception for compatible 5.8GHz analogue FPV racing systems.
- FPV Freestyle Systems: Helps maintain more consistent video reception as the aircraft changes orientation during flight.
- FPV Multicopter Monitoring: Receives analogue video transmissions from compatible 5.8GHz aircraft systems.
- Fat Shark Dominator Goggle Setups: Can be integrated into compatible ground-station arrangements for goggles that accept the appropriate analogue receiver and AV interface.
- Portable FPV Ground Stations: The integrated display and compact receiver board support portable video reception equipment.
- Dual-Antenna Reception Systems: Allows an omnidirectional and directional antenna arrangement to be used with the two receiver paths.
- FPV Video Monitoring: Supplies analogue video output to compatible external monitors and display equipment.
- Custom FPV Electronics: Provides a receiver platform for compatible ground-station development and supported firmware customisation.
Package Includes
- 1 × RX5808 Pro Dual Diversity Receiver Module with Pre-Installed OLED Display
- 1 × Dupont Cable
- 1 × Right-Angle 1×13 Burgess Connector Pin
Product Specifications
| Parameter | Specification |
|---|---|
| Product Model | RX5808 Pro |
| Product Type | Dual Diversity FPV Video Receiver |
| Receiver Architecture | Dual RX5808 Receiver Modules |
| Operating Frequency Range | 5705–5945MHz |
| Number of Channels | 40 |
| Receive Sensitivity | -90dBm |
| Display | Integrated OLED Display, Pre-Installed |
| Diversity Function | Automatic switching between two receiver paths |
| Channel Search | Automatic signal search |
| Video Output | Analogue AV Output |
| Audio Output | Analogue audio output (as described by supplier) |
| Operating Voltage | 3.5–5.5V DC |
| Current Consumption | Approximately 170mA |
| Board Length | 79mm |
| Board Width | 40mm |
| Board Height | 10mm |
| Product Weight | Approximately 37g |
Connection & Operating Recommendations
For reliable operation, the receiver should be supplied with a stable DC voltage, connected to compatible analogue AV equipment and installed with antennas suitable for 5.8GHz reception. The following checks help ensure correct integration into an FPV ground station.
- Verify Supply Voltage: Use a regulated 3.5–5.5V DC supply and ensure the power source can provide the required current.
- Confirm Antenna Compatibility: Use antennas designed for 5.8GHz and verify that their connectors match the receiver’s RF interfaces.
- Match Antenna Polarisation: Use compatible polarisation between the aircraft’s transmitting antenna and the ground receiver antennas to avoid unnecessary polarisation mismatch.
- Choose Antennas for the Flight Area: An omnidirectional antenna and a directional antenna can provide complementary coverage, provided the directional antenna is oriented toward the intended flight area.
- Check AV Wiring: Verify the board’s AV, power and ground pin assignments before connecting goggles or external display equipment.
- Select the Correct Video Channel: Use the OLED interface and automatic search function to identify the active compatible transmitter channel.
- Maintain RF Separation: Position the antennas with suitable physical separation and avoid unnecessary obstruction by metal structures or other conductive components.
- Test Before Flight: Confirm video output, diversity switching and reception quality with the complete ground-station setup before operational use.
