Mainly due to the reception of broadband radio signals, if it is used for FM transmission, it is recommended to buy a variety of FM frequency special antennas specially customized by our store, which have higher efficiency and higher input power, and can be customized according to the user`s actual transmission frequency without adjustment. Use directly.
For enthusiasts with certain technology and instruments, if it is used for transmission, it is necessary to carefully adjust the length of the antenna and the ground net and the angle of the ground net according to the 1/4 wavelength calculation formula and the instrument to obtain the ideal resonant frequency of the desired emission frequency. and standing waves.
It is recommended that the transmit power be less than 20W. At the same time, since the ground network interface of this ground network antenna is the standard M female interface, you can also not use the original rod antenna, but directly screw the ordinary car UV antenna to the local network interface instead of the original rod antenna, and the corresponding UV antenna has been obtained.
Efficient transmission and reception of frequencies. Of course, the purpose of BG3MDC`s design and development of this antenna is broadband, and the center frequency can be adjusted. The corresponding gain of the 1/4 wavelength antenna is not as high as that of the antenna with a longer fixed frequency point, and the gain and bandwidth of the antenna are mutually restricted.
Just like a pile of sand (signal), if you want to pile it high (signal strength and high gain), you cannot spread it over a large area (frequency bandwidth), and if you want to spread out a large area (product bandwidth), you cannot pile it high (high gain strong signals). You can`t have both.
If you only want to use a fixed frequency band and want a higher gain antenna,you are welcome to buy a variety of fixed frequency high gain antennas in our store.
For example, if you only want to receive or transmit signals in the FM frequency band or aviation frequency band but have no requirements for receiving signals in other frequency bands, it is recommended to buy a single-frequency high-gain antenna specially designed for the corresponding frequency band, so that the signal is better and the gain is higher.
size: 36cm
Material: Aluminum alloy
colour: silver
Package Contents:
1 x SDR receiving antenna
1 x 0.15M Cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.