- 1. [TowerTalk] Turned reflector? (score: 1)
- Author: k2qmf@juno.com
- Date: Sun, 16 Sep 2012 13:45:04 -0400
- Hello All, I have a question for the antenna design guys. On a 4 element yagi, if the reflector turns 20 degrees on the boom will that make any difference in the performance of the antenna??? Thanks
- /archives//html/Towertalk/2012-09/msg00280.html (7,065 bytes)
- 2. Re: [TowerTalk] Turned reflector? (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sun, 16 Sep 2012 13:17:26 -0700
- I have a question for the antenna design guys. On a 4 element yagi, if the reflector turns 20 degrees on the boom will that make any difference in the performance of the antenna??? ALmost unmeasureab
- /archives//html/Towertalk/2012-09/msg00286.html (7,807 bytes)
- 3. Re: [TowerTalk] Turned reflector? (score: 1)
- Author: Steve Hunt <steve@karinya.net>
- Date: Sun, 16 Sep 2012 21:39:31 +0100
- I just tried it on an EZNEC model of a 5-el Yagi. The Forward Gain dropped by 0.3dB. The rearward pattern was badly affected: all the nulls were "filled in" as Jim suggested, and rearward lobes were
- /archives//html/Towertalk/2012-09/msg00287.html (8,298 bytes)
- 4. Re: [TowerTalk] Turned reflector? (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sun, 16 Sep 2012 13:44:21 -0700
- The Forward Gain dropped by 0.3dB. The rearward pattern was badly affected: all the nulls were "filled in" as Jim suggested, and rearward lobes were typically 8dB higher. the more elements in your de
- /archives//html/Towertalk/2012-09/msg00288.html (7,616 bytes)
- 5. Re: [TowerTalk] Turned reflector? (score: 1)
- Author: Jim Brown <jim@audiosystemsgroup.com>
- Date: Sun, 16 Sep 2012 14:04:02 -0700
- Expanding on this a bit, this result is common to nearly all designs that produce directivity -- forward gain is produced by in-phase addition, so small changes in any element have a relatively small
- /archives//html/Towertalk/2012-09/msg00289.html (8,331 bytes)
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