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1. [TowerTalk] ant model gain (score: 1): Author: "Al Williams" <alwilliams@olywa.net>; Date: Mon, 2 Jun 2008 07:43:55 -0700; Is the gain reported in antenna models a gain of: E (electric field), I (magnetic field), or W(watts-W=EI)? Also, Is the S meter in receivers in E (S9=50 microvolts) still in E when the scale switche; /archives//html/Towertalk/2008-06/msg00039.html (6,503 bytes)
2. Re: [TowerTalk] ant model gain (score: 1): Author: Bob Nielsen <n7xy@clearwire.net>; Date: Mon, 2 Jun 2008 08:20:15 -0700; All of the above. Gain is a ratio. It is normally expressed in decibels (dB), which is 10 log (P/P0) or 20 log (E/E0). Since P = I^2R = E^2/R, gain in decibels is independent of whether you are measu; /archives//html/Towertalk/2008-06/msg00041.html (7,993 bytes)
3. Re: [TowerTalk] ant model gain (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Mon, 2 Jun 2008 10:39:58 -0500; If gain is expressed in DB it doesn't matter. If voltage is being measured and it gives you a 6 db change between 2 different antennas they will also give you a 6 db change if you are measuring power; /archives//html/Towertalk/2008-06/msg00042.html (8,259 bytes)
4. Re: [TowerTalk] ant model gain (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Mon, 02 Jun 2008 12:24:44 -0700; Normally, the gain is for the far-field pattern, where E/H = 377 ohms, so the field patterns and the resulting gains are essentially identical. Contrary to popular imagination, there is only one kind; /archives//html/Towertalk/2008-06/msg00045.html (7,669 bytes)

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