To: | <towertalk@contesting.com> |
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Subject: | [TowerTalk] Placement of coaxial matching stub at yagi feedpoint |
From: | "Bill Conwell" <bill@conwellpdx.com> |
Date: | Tue, 13 Oct 2015 07:22:47 -0700 |
List-post: | <towertalk@contesting.com">mailto:towertalk@contesting.com> |
I'm doing some EZNEC modeling - looking at converting a KLM 40m 2 element yagi to 30m. The feedpoint impedance is about 35 + j25 ohms. By shunting it with an open stub of about 100 inches of 75 ohm coax, I get a good match. I know I'll need to keep the open end of the stub away from the boom, etc. But is there any other reason the stub couldn't be laid-along, and taped to the boom? Or coiled nearby? I think not, but wanted to tap the crowd for collective wisdom. Tnx, /Bill, K2PO _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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