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I am a little confused, so bare with me.....
I put up an antenna with 50 ohm of impedance. I feed it with any length of 300 ohm feed less than 1/2 L. Then I run 1/2 L of 50 ohm feed to the radio and I have the 50 ohm match? similar: I put up a 300 ohm antenna. I feed it with 300 ohm twin lead for less than 1/2 L and 1/2 L of 50 ohm feedline. Is this a 50 ohm match? (L=Lamda) Thanks Buck On Thu, 9 Jun 2005 00:27:26 -0400, "Fred W4JLE" wrote: No buck, the line is always longer than 1/2 wave. It is a matching section from what is at the antenna to 50 ohms, and then 1/2 wave from that point. "Buck" wrote in message .. . Pardon me while I learn from this discussion. The 450 ohm antenna is designed to be tuned by using exactly 1/2 electrical wave lengths to match both the transmitter and antenna. This should mean that any differing feedline should work equally as well (except for the losses) if I am correct.... On Tue, 7 Jun 2005 18:02:43 -0400, "Fred W4JLE" wrote: I feed it with an electrical 1/2 wave length of exactly 450 Ohm feedline. The 50 Ohms from my antenna is repeated at the other end of the feedline. An SWR bridge calibrated for 50 Ohms and my rig see 1:1. -- 73 for now Buck N4PGW -- 73 for now Buck N4PGW |
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