Featuring dual-channel 2.4GHz radios, the RP4TD excels in signal sensitivity, signal-to-noise ratio, and overall performance due to its optimized circuit design.

RadioMaster RP4TD ExpressLRS 2.4GHz True Diversity Receiver

Featuring dual-channel 2.4GHz radios, the RP4TD excels in signal sensitivity, signal-to-noise ratio, and overall performance due to its optimized circuit design. The reliable DCDC power supply circuit ensures lower operating temperatures during extended usage. Additionally, the dual TCXO contributes to the utmost frequency stability and makes the RP4TD a leader in its class. The RP4TD features built in WIFI so you can wirelessly upgrade firmware to configure the receiver via the built-in WebUI with your PC or mobile phone.

Suitable for drones and fixed-wing models, the receiver can be installed in virtually any application that requires a serial receiver!

Features

• Gemini mode compatible
• Reliable DCDC Power supply circuit
• Class leading SNR and RSSI performance
• Optimized PCB design for better heat dissipation
• Upgraded antenna with greater durability and performance
• UART pads for extended applications
• Dual TCXO (temperature compensated crystal oscillator)
• 2x 100mw RF Telemetry power output
• Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS

Specification

• Item: RP4TD ExpressLRS 2.4GHz Diversity Receiver
• Type: ISM
• MCU: ESP32
• RF Chip: SX1281 x 2
• Antenna: 65mm 2.4GHz T Antenna x 2
• Frequency Range: 2.4GHz
• Maximum Refresh Rate: 500Hz / F1000Hz
• Telemetry RF Power: Max 2x 100mW
• Working Voltage: DC 4.5-12.0V
• Weight: 1.4g (without antenna)
• Dimension: 23.7*16.3*4.0mm
• Firmware Version: ExpressLRS V3.3.0 pre-installed
• FW Target: RadioMaster RP4TD 2400 RX
• Bus interface: CRSF
• Extend interface: UART

Dual TCXO (temperature compensated crystal oscillator)

The TCXO ensures high stability and accuracy in frequency control, compensating for temperature variations. This results in consistent and reliable signal reception, even in extreme temperature conditions. It also reduces frequency drift over time, providing long-term frequency stability and preventing signal degradation. In our testing, we found that two TCXOs offer better advantages in true diversity receivers.

Includes

• 1 * RP4TD ExpressLRS 2.4GHz Diversity Receiver
• 1 * CRSF wire
• 3 * Heat-Shrinkable Tube
• 2 * 65mm 2.4GHz T Antenna (Installed on receiver)
• 1 * User Manual

RP4TD is now compatible with Meshtastic!

Meshtastic® is a project that enables you to use inexpensive LoRa radios as a long range off-grid communication platform in areas without existing or reliable communications infrastructure. This project is 100% community driven and open source!

How it works

Meshtastic utilises LoRa, a long-range radio protocol, which is widely accessible in most regions without the need for additional licenses or certifications, unlike HAM radio operations. These radios are designed to rebroadcast messages they receive, forming a mesh network. This setup ensures that every group member, including those at the furthest distance, can receive messages. Depending on the settings employed, the Meshtastic mesh network can support up to 100 devices concurrently. Additionally, Meshtastic radios can be paired with a single phone, allowing friends and family to send messages directly to your specific radio. It’s important to note that each device is capable of supporting a connection from only one user at a time.