GEPRC ELRS 2.4GHz Nano PA100

GEPRC ELRS Nano 2.4G PA100 is a nano receiver for the ExpressLRS system in the 2.4GHz band, suitable for racing, freestyle, and long-range quads. ExpressLRS is an advanced open source RC system with long range, low latency, and a high refresh rate. Compared to standard nano receivers, this model has integrated PA+LNA — a power amplifier and low-noise preamplifier. Thanks to this, it achieves telemetry power up to 100mW, so feedback data from the model can reach the transmitter even at greater distances, while the preamplifier also boosts the weak received signal before it enters the radio chip.

The receiver is built on a combination of ESP8285 and the Semtech SX1281 radio chip and supports a refresh rate of 25 to 1000Hz. It features a TCXO („temperature compensated crystal oscillator”) — a temperature-compensated crystal that keeps the oscillator frequency stable even with temperature changes, so the link remains steady in frost and after the model heats up. With dimensions of 17x11mm and a weight of 0.7g (without antenna), it fits even into builds with minimal space. The included antenna has a total length of 95mm and connects via an IPEX1 connector. Power supply is 5V and the RX, TX, 5V and GND pads are broken out on both sides of the board, so it can be soldered from whichever side works better in the build. Firmware is updated via WiFi thanks to the built-in WiFi antenna, or via UART or Betaflight passthrough. The receiver target is GEPRC Nano 2.4GHz PA100 RX and the minimum ExpressLRS version is 3.3.0. Important notice: flashing firmware intended for a different receiver model will significantly reduce range or prevent the receiver from binding with the transmitter at all. More information