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View compareFrequently Asked Questions
- Q: What are the dimensions of the RadioMaster ER3C-I receiver? A: The dimensions are twenty-six point one millimeters by eighteen point five millimeters by thirteen millimeters. This compact size makes it suitable for various surface model applications.
- Q: What type of antenna does the RadioMaster ER3C-I receiver have? A: It has a built-in high-sensitivity ceramic antenna. This design eliminates the need for external antenna wires, providing a cleaner installation.
- Q: What voltage range does the RadioMaster ER3C-I receiver support? A: It supports a power supply range of four point five to eight point four volts. This flexibility allows compatibility with various external battery systems.
- Q: How do I install the RadioMaster ER3C-I receiver? A: To install, connect the receiver to your surface model's servo and power supply using the included telemetry wire. Follow the configuration instructions for setup via WEBUI.
- Q: Can the RadioMaster ER3C-I receiver be used with any transmitter? A: Yes, it is compatible with all two point four gigahertz ExpressLRS modules and transmitters. This versatility allows it to work with various RC setups.
- Q: How many PWM channels does the RadioMaster ER3C-I receiver support? A: It supports three PWM channels. This capability allows for control of up to three servos simultaneously.
- Q: How do I keep the RadioMaster ER3C-I receiver in good condition? A: To maintain it, avoid exposure to moisture and extreme temperatures. Regularly check connections for wear and ensure firmware is updated via Wi-Fi.
- Q: Is the RadioMaster ER3C-I receiver safe to use in all weather conditions? A: Yes, it features a temperature-compensated crystal oscillator for stable performance in varied environments. However, protect it from direct water exposure.
- Q: What should I do if I encounter issues with the RadioMaster ER3C-I receiver? A: If you experience problems, check the connections and ensure proper setup. For further assistance, consult the user manual or contact customer support.
- Q: Does the RadioMaster ER3C-I receiver have telemetry capabilities? A: Yes, it includes built-in voltage telemetry for battery monitoring. The receiver can automatically detect the voltage of connected batteries.
- Q: Is the weight of the RadioMaster ER3C-I receiver suitable for lightweight models? A: Yes, it weighs only four point two grams. This lightweight design is ideal for various surface models without adding significant weight.
- Q: Can I update the firmware of the RadioMaster ER3C-I receiver? A: Yes, it supports Wi-Fi updates. You can easily update the firmware through the WEBUI configuration interface.
- Q: What materials is the RadioMaster ER3C-I receiver made of? A: It is primarily made of plastic. This material choice helps keep the receiver lightweight while maintaining durability.
- Q: Is the RadioMaster ER3C-I receiver suitable for beginners? A: Yes, it is designed to be user-friendly and compatible with various transmitters. Beginners can easily set it up and start using it.
- Q: What features enhance the performance of the RadioMaster ER3C-I receiver? A: It features high sensitivity, flexible configuration, and ultra-fast response speeds. These aspects contribute to its high reliability and performance.

