BAYCKRC 900/2400 Dual Band Gemini RX 100mw

Introduction

The BAYCKRC 900/2400 Dual Band Gemini RX dual-frequency receiver is a wireless remote control system optimized and developed based on the ExpresSLRS open source project. It uses the LR1121 (Semtech’s third-generation transceiver) and can be configured with

150-960MHz (SuD-GHz) or 2.4GHz LORa. The Sub-GHz range is fully compatible with the current ELRS 433/868/900 range and has a +100mW output capability (SX1276 maximum output power +50mW). It is also fully compatible with all 2.4GHz LoRa modes, but unfortunately, does not support FLRC mode, and 2.4GHz D and F modes.

LR1121 adds 4 new RF modes:

1. Sub-GHz 250Hz (-111dBm)…   Yes, the ELRS organization is speeding up!
2. Sub-GHz 200Hz Full Speed (-111dBm) This mode is specifically for our Mavlink users. The packet rate is twice that of the current 900 SX1276 hardware.
3. Dual Band X150Hz (-112dBm) Simultaneous sub-GHz and 2.4GHz transmission in Gemini mode.
4. Dual Band X100Hz Full Band (-112dBm) Simultaneous sub-GHz and 2.4GHz transmission in Gemini mode.

Dual Band Dual Band Fusion is to divide the second antenna into the 2.4g band under the 915 gemini.

5 Receiving Modes Can Be Implement

1. 900mhz diversity mode (dual antenna true diversity mode), used with 900mhz single antenna single core high frequency head.
2. 900mhz Gemini 15l (dual antenna Gemini mode), used with 900mhz dual antenna dual core high frequency head.
3. 2.4GHz diversity mode (dual antenna true diversity mode), used with 2.4GHz single antenna single core high frequency head
4. 2.4GHz Gemini mode (dual antenna Gemini mode), used with 2.4GHz dual antenna dual core high frequency head.
5. 900mhz&2.4GHz dual frequency Gemini mode (dual antenna Gemini mode), used with 900mhz&2.4GHz dual antenna dual core high frequency head. The high frequency head in this mode must be LR1121 dual core dual frequency high frequency head