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1. Topband: Battle Creek Special problems (score: 1): Author: "Tom Hoyer" <hoyer@netreach.net>; Date: Wed, 3 Dec 2003 20:27:35 -0500; I recently built the tube version of the BCS. I used 2" dia tubing up to the 40m trap then transitioned to 1.5" tubing upt to the 80m trap. I followed the LC type trap guidelines in ON4UN's book. Bot; /archives//html/Topband/2003-12/msg00019.html (7,276 bytes)
2. Re: Topband: Battle Creek Special problems (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 4 Dec 2003 06:25:12 -0500; meters Tom, you really don't want the traps to be exactly resonant at the operating frequency. When you do that, the loss is at the peak value. Traps work perfectly fine 5% or more off frequency. Al; /archives//html/Topband/2003-12/msg00020.html (7,970 bytes)
3. Re: Topband: Battle Creek Special problems (score: 1): Author: "Tom Homewood" <w1to@adelphia.net>; Date: Thu, 4 Dec 2003 09:25:41 -0500; If you form more of an angle you will lower the feed point impedance. Has anyone had this type of problem? Use an UNUN or L network to match the low impedance. 73, Tom, W1TO ________________________; /archives//html/Topband/2003-12/msg00021.html (7,222 bytes)

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