Q: What is the maximum refresh rate, and how do I configure it?

The receiver supports up to 1000Hz refresh rate. To enable this, adjust your transmitter’s ELRS settings to "1000Hz" mode and ensure your flight controller’s configuration (e.g., Betaflight) matches the same packet rate. Note: Higher refresh rates may reduce range slightly.

Question 1

Is the GEPRC ELRS Nano 2.4G PA100 Receiver compatible with all ExpressLRS (ELRS) transmitters?​

Accepted Answer

Yes, this receiver is fully compatible with any transmitter running the ExpressLRS open-source protocol (e.g., RadioMaster, Happymodel, or custom-built ELRS systems). Ensure both your transmitter and receiver are updated to the same major firmware version for optimal performance.

Question 2

What is the maximum refresh rate, and how do I configure it?​​

Accepted Answer

The receiver supports up to ​​1000Hz refresh rate​​. To enable this, adjust your transmitter’s ELRS settings to "1000Hz" mode and ensure your flight controller’s configuration (e.g., Betaflight) matches the same packet rate. Note: Higher refresh rates may reduce range slightly.

Question 3

Why does the receiver use a TCXO crystal oscillator?​​

Accepted Answer

The TCXO (Temperature-Compensated Crystal Oscillator) ensures stable frequency operation across extreme temperatures, preventing signal drift or loss of control during prolonged flights in hot/cold environments.

Question 4

How do I connect the receiver to my flight controller?​​

Accepted Answer

Use the included 4-pin silicone cables to wire the receiver’s TX/RX/GND/5V pins to your flight controller’s corresponding UART ports. Configure the UART for "Serial RX" in your firmware (e.g., Betaflight) and select "CRSF" as the protocol.

Question 5

What should I do if the receiver loses signal intermittently?​​

Accepted Answer

Ensure the antenna is securely connected to the IPEX1 port and positioned away from carbon fiber or metal obstructions. Check for firmware mismatches between transmitter/receiver, reduce Wi-Fi/Bluetooth interference, and verify adequate voltage (5V stable input).

GEPRC ELRS Nano 2.4G PA100 Receiver

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