[Antennas] Installing Lightning Protection

D.J.J. Ring, Jr. n1ea at arrl.net
Tue Jul 20 18:43:20 EDT 2010


In theory, it wouldn't, but I wouldn't do it.

The inrush of high voltage, high current electricity (lightning strike)
would generate a field around the coax.

The problem in my eyes is that you have protected coax line "Antenna to
Lightning Protection Panel" but the coax line "Antenna Protection Panel to
Radio Installation" comes back and is nearby the other coax from which it
could pick up the down rush of the lightning strike and couple it to the
radio equipment.

If no alternative exists for plumbing the coax, I would install the gas
filled reusable cartridges both the low power ones (to the receivers) and
the high power ones (to the transmitters).

Explaining why or how lightning managed to couple the closely spaced coax
lines might be interesting to speculate about, but I'd just install back up
protection in the location of the radio installation.

With my best regards,

David

DJ Ring, Jr., N1EA

=30=


More information about the Antennas mailing list