[Antennas] DC ground a collinear?

[Mike Gilchrist]

I am a lurker on this list. I have helped and been helped in the past. This 
time I need help.

I have put together an 802.11b network. I want to extend the range 
slightly. My plan involves putting a collinear vertical outside. I have 
built the antenna. It functions well. I purchased and plan to install a 
Polyphaser in this system. Most commercial antennas for this application 
are DC grounded. I live in the lightning capital of the world, and want my 
antenna DC grounded. Here's where I need your help.

By my calculation, I could put a .033 uH inductor across the feed, and it 
would ground the element with a low resistance path, and show an inductive 
reactance of 500 ohms. I feel any large charge induced on the element would 
quickly blow this tiny an inductor, I wouldn't know it, and my system would 
once again be at risk.

How do the commercial guys DC ground a vertical collinear? What strategy 
could I take, with my limited test equipment, to keep the radiator of this 
antenna at DC ground?

Any and all thoughts are appreciated. Please respond to this list and also 
CC to me, since I read this in digest format.

73, Mike Gilchrist KF4FDJ