This product uses the principle of 1/4 short-circuit wavelength to achieve good protection effect. The lightning arrester has a solid structure, beautiful appearance and convenient installation. One end is connected to the antenna, the other end is connected to the . The side of the lightning arrester has a screw ring for grounding. It can be inserted into a thick copper wire and pressed firmly with a . Then the other end of the copper wire is connected to the protective net on the top of the . The contact must be sufficient. Brand new and high quality. Frequency range: DC-1000MHz. V.S.W.R less than 1.1. Loss less than 0.2dB. Withstand power: 400W PEP. Discharge voltage: DC350V+-15%. Discharge voltage on (1 x 40)uS: 1,000V. Withstand current on (1 x 40)uS: 6,000A. Repetitive discharge of (1 x 40)uS 500A, over 500 :DC350V20%. Insulation resistance DC 100V: Over 10,000M ohm. Color: As shown. Material: Metal. Package contents: 1 x CA-35RS Lightning Arrester. Only the above package content, other products are not included. Note: Light reflection 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.