How
to prevent damage from lightning strikes in antennas.
pa0nhc 20110308
Legend to the pictures:
| fig. |
Title |
| 1 | Coaxial antenna cable |
| 2 | Free standing, metal tilt over antenna mast |
| 3 | Flexible connection around turning point |
| 4 | Metal console |
| 5 | Under ground buried antenna cable to the house |
| 6 | Vertical ground electrode, at least 4mtrs long |
| 7 | Alternative: a horizontal, in the ground buried electrode, at least 15m long |
| 8 | Metal antenna mast-pipe |
| 9 | Mast clamp |
| 10 | Down running conductor |
| 11 | Antenna feed through wall |
| 12 | Link in antenna cable, downwards routed |
| 13 | Connection between the antenna cable and the grounding in the down going link |
| 14 | Connection to metal roof gutter, or roof rim |
| 15 | Metal screening in coaxial antenna cable |
| 16 | Plastic outer insulation of coaxial antenna cable |
| 17 | Home made clamp, copper foil |
| 18 | Professional splitting clamp |
| 19 | Earth wire, spirally wound around the screening of the coax antenna cable |
| 20 | Down going connection to lightning ground |
| 21 | Total lightning protection system with roof conductor network, down going conductors and ground electrodes |