All of Ameison’s outdoor antennas have a built in DC short which will help with vicinity strikes.
For proper protection the pole which the antenna is mounted on must be properly grounded.
A typical set-up an aluminium pole with a copper strap running down the pole into an appropriate spike (or 3 spikes) into moist soil.
An additional aluminium pipe can be mounted horizontally above the antenna to take the brunt of any direct strikes.
Gas arrestors or polyphaser devices can also be fitted inline to further suppress any surges.