[RFI] Is a Ground-Shortening Switch Better?
k8ri at rogerhalstead.com
Thu Mar 12 20:21:31 PDT 2009
>> Is a ground-shortening coax-antenna switch preferred
>> for lightning/static reasons?
>> Any down side?
> Forgetting to throw it before the storm comes!
> The best place for a switch (or physical disconnect) is before the feedline
> enters your shack, with the shortest possible connection to ground. Which
> makes it inconvenient to toggle. Putting the switch inside the shack adds
Mount it on the bulkhead grounding plate and run a phenolic rod through
the wall with a handle allowing the short ground path, yet the
convenience and safety of the inside actuation.
I have too many lines coming in, so I rarely bother to disconnect
anything including the CAT5e and CAT6 lines to the shop from the house.
> For discharging static before it builds up to dangerous levels, a switch
> inside probably works. But for anything approaching a direct hit (keeping
> in mind that nothing can save you from an actual direct hit), putting the
> switch inside brings the energy from the lightning into your house, which
> could ruin your day.
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