68-350MHz GP Antenna FM Transmitting Receiving Antenna Combined Vibrator Broadband BNC/Q9 Connector

68-350MHz GP Antenna FM Transmitting Receiving Antenna Combined Vibrator Broadband BNC/Q9 Connector

Description:
-This is a flexible amateur FM transmitting/receiving antenna. It is composed of 4 telescopic antennas with adjustable length. It can be placed outdoors. Compared with a single antenna, it has higher gain and transmission efficiency, and can significantly increase the transmission distance or Improve receiving sensitivity. The length of the four elements of this GP antenna can be adjusted according to the transmitting or receiving frequency, which is more flexible than the fixed-length GP antennas on the market. The length of the element can be freely stretched within 20~112CM to adapt to wider transmission frequency range.

-The antenna element length can be accurately set to 1/4 wavelength of the emission frequency (to achieve the highest emission efficiency): element length (m) = (300/frequency)/4, if the emission frequency is 100MHZ, that is, the length of each element It is: (300/100)/4=0.75 meters.

-The GP antenna is an umbrella structure, that is, the main vibrator is stretched upwards and vertically, and the other three ground grid vibrators are pulled out at an angle of 45 degrees downwards. When using, be sure to adjust the length and angle of each vibrator, otherwise the use effect will be affected or even burn the transmitter.

Package List:
1 x GP Antenna

Note:
The interface at the bottom of the antenna is a Q9 (BNC) female connector, and a Q9 (BNC) male connector is provided. 50 ohm coaxial feeder is not included.