{"product_id":"radiomaster-er12-pwm-dual-band-gemini-and-gemini-x-receiver","title":"RadioMaster ER12  PWM - Dual-Band GEMINI and GEMINI-X Receiver","description":"\u003cp\u003eDesigned as a PWM receiver for large fixed-wing aircraft, especially where multiple servos and higher current loads are involved.\u003cbr\u003eCompatibility:  Compatible with all ExpressLRS transmitters and modules, including radios with built-in ELRS.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual-Band Gemini-X RF System (2.4GHz + Sub-G 900MHz).\u003c\/li\u003e\n\u003cli\u003e12 PWM Outputs + Serial Support: Full 12-channel PWM output with dedicated bidirectional UART and serial interfaces for system integration and expansion. \u003c\/li\u003e\n\u003cli\u003eXT30 Dedicated Power Input: Provides stable, high-current power delivery for demanding servo systems and larger aircraft installations. Important: When using the XT30 to power the receiver and servos, the ESC’s 5V\/BEC wire must be disconnected to prevent back-feeding and possible damage.\u003c\/li\u003e\n\u003cli\u003ePWM Signal Amplification: Amplified PWM outputs help maintain signal quality over long servo leads and extension cables. They also improve compatibility with larger, high-torque servos, helping ensure reliable control signal delivery throughout the aircraft. \u003c\/li\u003e\n\u003cli\u003eIndependent Multi-Source Voltage Telemetry: Monitor up to three power sources simultaneously using dedicated ADC channels: EXT-V (up to 70V), receiver supply voltage (V-PWM) (up to 12V), and XT30 input voltage (up to 12V).\u003c\/li\u003e\n\u003cli\u003eExternal UART Port: Dedicated interface for telemetry, external devices, and system expansion.\u003c\/li\u003e\n\u003cli\u003eWi-Fi Updates \u0026amp; WebUI: Configure settings and perform firmware updates wirelessly without disassembly.\u003c\/li\u003e\n\u003cli\u003eRobust MMCX Antenna Connectors: Secure, serviceable antenna connections for easy maintenance and long-term reliability. \u003c\/li\u003e\n\u003cli\u003eDurable Injection-Molded Housing: Provides consistent protection and structural durability for demanding installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage: DC 5.0 – 12.0V\u003c\/li\u003e\n\u003cli\u003eWireless Protocol: ExpressLRS\u003c\/li\u003e\n\u003cli\u003eOutput Channels: 12CH PWM\u003c\/li\u003e\n\u003cli\u003eSerial Output: CRSF \/ SBUS\u003c\/li\u003e\n\u003cli\u003eTelemetry Power: Up to 100mW (adjustable via LUA)\u003c\/li\u003e\n\u003cli\u003eVoltage Detection Range (EXT-V): DC 4.0 – 70V\u003c\/li\u003e\n\u003cli\u003eBus Interface: CRSF\u003c\/li\u003e\n\u003cli\u003eAntenna: 25 cm high-sensitivity, MMCX connector\u003c\/li\u003e\n\u003cli\u003eWeight: 22.5 g (without antenna)\u003c\/li\u003e\n\u003cli\u003eDimensions: 51.0 × 37.6 × 14.5 mm\u003c\/li\u003e\n\u003cli\u003eFirmware Target: RadioMaster Dual 2.4GHz\/900MHz Receiver\u003c\/li\u003e\n\u003cli\u003eDevice Name: ER12 Dual Band True Diversity + 12×PWM RX\u003c\/li\u003e\n\u003cli\u003eELRS FW Version: Requires version 4.1.0 or Higher\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Includes.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 * ER12 PWM - Dual-Band GEMINI and GEMINI-X Receiver\u003c\/li\u003e\n\u003cli\u003e2 * 2.4GHz Antennas\u003c\/li\u003e\n\u003cli\u003e2 * Dual-Band Antennas\u003c\/li\u003e\n\u003cli\u003e1 * Voltage Telemetry Cable (Type-B)\u003c\/li\u003e\n\u003cli\u003e1 * ELRS RX SBUS Cable\u003c\/li\u003e\n\u003cli\u003e1 * CRSF Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Radiomaster","offers":[{"title":"Default Title","offer_id":46523303919686,"sku":"RM0157.0141","price":70.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0412\/2761\/files\/ER12_1_f0f8561c_b649_44b0_aad4_d1e1eed72cc3_1800x1800_cc81aba7-7261-4ad5-a7f1-4ea54c72e684.png?v=1789040989","url":"https:\/\/www.nextfpv.com\/hr\/products\/radiomaster-er12-pwm-dual-band-gemini-and-gemini-x-receiver","provider":"Next FPV","version":"1.0","type":"link"}