H12-311 Web TestEngine demo

Select all that apply.

• A

  When selecting antenna gain, ensure that the antenna beam matches the coverage area. If the coverage distance is short, select low-gain antennas with wide vertical lobes to ensure proper coverage near the antenna.

• B

  An antenna's gain quantitatively measures how effectively it can radiate input power in a given direction.

• C

  An antenna's gain reflects its ability to transmit and receive signals in a specific direction and is unrelated to the antenna model.

• D

  Antennas are passive components and do not amplify electromagnetic signals.