آنتن فنری 20 میلی متری مناسب برای گیرنده های 433MHz

Description
Copper Spring Antenna is a spring or coil built-in antenna spot pen-hold which made of copper material.
It works with the 433MHz frequency band, to gain the signals for the Remote control and systems.
Antennas are essential components of all radio applications, which are applied in radio broadcasting, broadcast television, two-way radio, communications receivers/transmitter, transceiver, radar, cell phones, and other devices.
This antenna is a dedicated length by changed shape to spring or coil built-in antenna.
small size, ingenious structure, easy installation, stable performance, with good anti-vibration and aging ability.
Apart from this, such antennas can be designed with different length of the spring for the different frequency band.​​​
This type of antenna is a dedicated antenna designed for a wireless communication system.
It hasn’t any connectors so you must use it directly by welding or soldering on the board.