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1. Topband: 160 Meters Mobile Antenna Suggestions (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Wed May 7 09:16:09 2003; _________________________________________________________ A 160 meter mobile antenna is going to have a very narrow bandwidth so it may not be effective for BCB unless you are able to tune it somehow; /archives//html/Topband/2003-05/msg00046.html (10,090 bytes)
2. Topband: 160 Meters Mobile Antenna Suggestions (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Wed May 7 18:29:54 2003; Perhaps that is optimistic. I'm going from memory of several years ago. It depends greatly on the Q you achieve with the loading coil. The point is, don't expect much in the way of bandwidth. -- Bill; /archives//html/Topband/2003-05/msg00049.html (9,221 bytes)
3. Topband: 160 Meters Mobile Antenna (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Thu May 8 07:09:15 2003; The traditional test for lossy plastic is to put a section of about six inches in the microwave for 20 seconds or so and see if it gets hot under full power. To protect the magnetron, also put a smal; /archives//html/Topband/2003-05/msg00051.html (8,310 bytes)
4. Topband: 160 Meters Mobile Antenna (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Thu May 8 14:19:39 2003; I haven't actually tried heat shrink as a means of preventing rain from detuning, but I suspect it might not work as well as one might think. Since the heat shrink would be right next to the coil tur; /archives//html/Topband/2003-05/msg00054.html (8,689 bytes)
5. Topband: 160 Meters Mobile Antenna (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Sat May 10 06:52:21 2003; _________________________________________________________ Quite correct. My approach is that any material that passes the microwave oven test should be excellent at HF. -- Bill, W7TI; /archives//html/Topband/2003-05/msg00066.html (9,189 bytes)
6. Topband: 160 Meters Mobile Antenna Suggestions (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Sat May 10 12:26:55 2003; _________________________________________________________ I think bandwidth *is* a good indicator of mobile antenna efficiency, provided you're comparing the same configuration and changing only the; /archives//html/Topband/2003-05/msg00070.html (8,742 bytes)
7. Topband: 160 Meters Mobile Antenna (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Sat May 10 12:26:57 2003; _________________________________________________________ Really? You're saying there is a material which passes the "microwave oven" test but is *not* suitable for HF coil forms? What would that mat; /archives//html/Topband/2003-05/msg00071.html (9,578 bytes)
8. Topband: Re: Mobile Antenna bandwidth (score: 204): Author: w7ti at ispwest.com (Bill Turner); Date: Mon May 12 12:11:17 2003; _________________________________________________________ I presume you're talking about a condition where there is so much shunting capacitance that the self-resonant frequency is approaching the ac; /archives//html/Topband/2003-05/msg00093.html (8,760 bytes)

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