It is three meters away from the lightning rod and within its protection range. Please calculate the protection range according to the rolling ball. See GB50057 GB50343 for details, which can be found online. You can add any questions. Coaxial arrester shall be installed at the highest entrance of coaxial line and shall be reliably grounded.

Supplement: basically, it has no effect, but the signal in the direction of lightning rod may be weaker at a long distance, but many base station antennas are like this.