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John Ferrell wrote:
When I assembled it I was disappointed to find it did not have a gamma match! Instead it got by with a direct connection to the driven element with the 50 ohm line. Cushcraft prided themselves on building antennas with a DC resistance of 0 ohms. In plain English they were static disipators. At their design frequency they had an impedance of 50 ohms. When I lived in Philly, we had a sever lightening problem. Whenever there were lightening storms there were nearby strikes with all sorts of expensive EMP problems. When I put up a cushcraft 2m beam (the 11 element vertical polarization on the same beam as an 11 element horizontal one) with proper gounding they all "went away". I wonder if our neighbors suddenly noticed next spring that the lightening had come back :-) Geoff. -- Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM I do multitasking. If that bothers you, file a complaint and I will start ignoring it immediately. |
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