On 6/14/2010 3:15 AM, Tom W8JI wrote: > The most important thing in this is to always have a dc leak path to earth > on the antenna side of any "T" network or anything else that might add a > series capacitance. (Some lighting suppressors are a bad design with "dc > isolation" by a series capacitor on the center conductor.) We never want > series capacitance that prevents or blocks a bleed-off path to earth.
The popular ICE lightning suppressors do have a DC blocking capacitor, but there is a toroidal RF choke to ground (with a DC resistance of about half an ohm) on the antenna side. They also appear to have a drain with a resistance of about 130K on the radio side. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
