📏 ขนาดสินค้า
● รุ่น 315MHz : ความยาวประมาณ 24cm
● รุ่น 433MHz : ความยาวประมาณ 18cm
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Spring Antenna 315MHz / 433MHz for RF Wireless Modules
High-quality spring antenna designed to improve the range and stability of RF wireless communication. Suitable for wireless remotes, IoT projects, Arduino, ESP32, 315MHz / 433MHz RF modules, and DIY electronics.
⭐ Key Features
● Supports 315MHz and 433MHz frequencies
● Improves RF signal transmission and reception
● Compact spring design and easy installation
● Lightweight and ready for direct soldering
● Ideal for Wireless Modules, Remote Controls, and IoT Projects
🔧 Specifications
● Operating Frequency: 315MHz / 433MHz
● Gain: 2–3 dBi
● Impedance: 50Ω
● VSWR: ≤ 1.8
● Material: Black-Coated Spring Wire
● Wire Diameter: 0.8mm
● Spring Diameter: 5mm
● Connection Type: Direct Soldering to PCB
📏 Product Size
● 315MHz Model: Approx. 24 cm. Length
● 433MHz Model: Approx. 18 cm. Length