RJTX - 230 - 27J is a bendable rubber rod antenna for the 230MHz frequency band. The total height of the antenna is approximately 270mm, and it is equipped with an SMA - J interface (SMA female thread with inner pin). It is suitable for broadband communication systems in the 230MHz frequency band, wireless hotspot coverage, and mobile terminal devices, such as routers, APs, radios, network cards, smart TVs, etc.
Voltage Standing Wave Ratio (VSWR)
Note: Tested in exposed air, the data is for reference only.
Common Questions
1.The antenna frequency must match that of the wireless device; otherwise, the communication performance will be poor.
2.The lower the communication frequency, the longer the wavelength and the better the diffraction performance.
3.When there are direct-line communication obstacles, the communication distance will be correspondingly attenuated.
4.Please note the antenna radiation direction. Incorrect installation of the antenna will lead to short transmission distance.
5.The ground absorbs radio waves, so testing near the ground yields poor results. It is recommended to increase the height.
6.Seawater and salt spray have strong radio wave absorption capacity, so testing by the sea is not ideal.
7.If metal objects are near the antenna or it is placed in a metal casing, signal attenuation will be severe.
8.Poor impedance matching between the antenna and communication device will degrade communication performance.
