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1. [Antennaware] EZNEC Modelling (score: 1): Author: David Gould <dave@g3ueg.co.uk>; Date: Mon, 20 Nov 2006 16:26:55 +0000; I have been doing some basic modelling of vertical antennas using EZNEC for a while but have not paid much attention to the impact the L-match has on the system (particularly losses in the coil) and; /archives//html/Antennaware/2006-11/msg00001.html (7,127 bytes)
2. [Antennaware] EZNEC modelling (score: 1): Author: David Gould <dave@g3ueg.co.uk>; Date: Mon, 20 Nov 2006 19:27:42 +0000; Thanks for the input so far. Ed K4SB asked how I determine the L-match components.. I use the following website to match what the model gives me to 50ohms. The network I use is the second down on the; /archives//html/Antennaware/2006-11/msg00002.html (7,643 bytes)
3. Re: [Antennaware] EZNEC modelling (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Mon, 20 Nov 2006 12:16:28 -0800; Dave, My EZNEC model may be a little different than yours. I used 3 sections of 16 feet each with 2.5, 2.25 and 2 inch diameters (64 segments each), then inserted a 0.25 foot section of 2.5 inch (1 s; /archives//html/Antennaware/2006-11/msg00003.html (9,180 bytes)
4. Re: [Antennaware] EZNEC modelling (score: 1): Author: David Gould <dave@g3ueg.co.uk>; Date: Mon, 20 Nov 2006 21:34:09 +0000; Terry, Thanks very much for the model and the explanation and taking the time to do it... I see what you have done, in that the capacitor has gone to ground effectively in parallel with the coil. My; /archives//html/Antennaware/2006-11/msg00004.html (9,137 bytes)
5. Re: [Antennaware] EZNEC modelling (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Mon, 20 Nov 2006 16:40:10 -0800; The model sources in NEC are either current or voltage sources, so are effectively either infinite or zero impedance. You may note that the gain of a modeled antenna is independent of the type of sou; /archives//html/Antennaware/2006-11/msg00005.html (9,123 bytes)
6. Re: [Antennaware] EZNEC modelling (score: 1): Author: 4nec2@gmx.net; Date: Tue, 21 Nov 2006 09:50:29 +0100; hello David, without saying something about the excellent EZNEC software, you could also try what result you get using the Network Matching form (F10 key), included in the 4nec2 software. With this y; /archives//html/Antennaware/2006-11/msg00006.html (7,721 bytes)
7. Re: [Antennaware] EZNEC Modelling (score: 1): Author: "Eugene Skopal" <eskopal@bestweb.net>; Date: Mon, 20 Nov 2006 15:00:12 -0500; Cebik has an excellent article on how to model a matching network at: http://www.cebik.com/amod/amod73.html ..Eugene.. AE2F I have been doing some basic modelling of vertical antennas using EZNEC for; /archives//html/Antennaware/2006-11/msg00008.html (8,952 bytes)

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