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Total 16 documents matching your query.

1. [VHFcontesting] Log Periodic ? (score: 1): Author: Ed via VHFcontesting <vhfcontesting@contesting.com>; Date: Wed, 13 Sep 2017 22:47:49 +0300; I am considering a Create LPDA for a roving station. Thinking it'll sit nicely on the roof of my fifth wheel. This would allow me to work all bands from 6m to 1.2 Ghz with a single antenna. I can als; /archives//html/VHFcontesting/2017-09/msg00089.html (6,832 bytes)
2. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Mark Spencer <mark@alignedsolutions.com>; Date: Wed, 13 Sep 2017 13:09:36 -0700; Hi: I've used the (IIRC 105 thru 1300 MHz ?) version for several years. I'm happy with my purchase. That being said it is not my primary contesting antenna and it stayed at home during the last conte; /archives//html/VHFcontesting/2017-09/msg00090.html (8,214 bytes)
3. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Jay Lubliner <ironclaw@live.com>; Date: Wed, 13 Sep 2017 22:31:00 +0000; Hi all, I had a Creative Design LP years ago. Realizing it's a compromise both gain wise, only 3 elements make up the log cell per say, and limited front to back isolation, I present the following di; /archives//html/VHFcontesting/2017-09/msg00093.html (11,452 bytes)
4. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Pete K0BAK via VHFcontesting <vhfcontesting@contesting.com>; Date: Wed, 13 Sep 2017 22:31:39 +0000 (UTC); When I just got started in VHF roving about 4 years ago, I thought the log periodic made sense too. I purchased one, but am embarrassed to admit I didn't realize it was a bit too wide to be taken poi; /archives//html/VHFcontesting/2017-09/msg00094.html (9,238 bytes)
5. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Mark Spencer <mark@alignedsolutions.com>; Date: Wed, 13 Sep 2017 16:27:32 -0700; I've used tri plexers with my smaller LPDA on occasion (in one case I cascaded two together) to eliminate the need to switch cables. I'm quite sure there were losses but if one is prepared to accept; /archives//html/VHFcontesting/2017-09/msg00096.html (13,205 bytes)
6. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Patrick Thomas <p-thomas@mindspring.com>; Date: Thu, 14 Sep 2017 08:45:43 -0400 (EDT); Like all things in contesting, I think it depends on one's goals and circumstances. Sure, an LPDA will not perform as well as long (maybe even mid-length) yagis. But... it also will cost less, take u; /archives//html/VHFcontesting/2017-09/msg00102.html (8,431 bytes)
7. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Zack Widup <w9sz.zack@gmail.com>; Date: Thu, 14 Sep 2017 09:23:42 -0500; I think if you're close to a metropolitan area with a lot of people to work who are close by, the log periodic is the way to go. Some of the Rovers in the Chicago area I know use LPDA's. My favorite; /archives//html/VHFcontesting/2017-09/msg00104.html (9,440 bytes)
8. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Bill Olson <callbill@hotmail.com>; Date: Thu, 14 Sep 2017 16:13:07 +0000; Hi all, Create claims the gain of the 50-1300MHz LPDA is 10-12dBi (~8-10dBd). I don't see how those numbers could possibly be accurate given the element taper and the boom length etc.. Reports of per; /archives//html/VHFcontesting/2017-09/msg00107.html (12,726 bytes)
9. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Zack Widup <w9sz.zack@gmail.com>; Date: Thu, 14 Sep 2017 11:37:43 -0500; Maybe someone can bring one to a Central States conference or another conference where antenna testing is done? Kent WA5VJB has always been accurate and impartial in his measurements. 73, Zack W9SZ _; /archives//html/VHFcontesting/2017-09/msg00108.html (14,105 bytes)
10. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Bill Olson <callbill@hotmail.com>; Date: Thu, 14 Sep 2017 17:06:13 +0000; Good idea! Sort of hard to believe that hasn't been done before.. anyone have any data?? bill, K1DY Maybe someone can bring one to a Central States conference or another conference where antenna test; /archives//html/VHFcontesting/2017-09/msg00109.html (16,554 bytes)
11. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: David Olean <K1WHS@metrocast.net>; Date: Thu, 14 Sep 2017 17:42:10 +0000; I remember seeing one at the NEVHF Conference a few years back. Gain was low at about 4- 5 dBd but at 900 MHz the main lobe started to have a double lobe out front. Not good and reduced the gain ther; /archives//html/VHFcontesting/2017-09/msg00111.html (16,704 bytes)
12. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Mark Spencer <mark@alignedsolutions.com>; Date: Thu, 14 Sep 2017 10:57:21 -0700; Having used the smaller Create LPDA I don't necessarily disagree with your assessment of the gain, but I I have never measured mine so I can't really comment. Subjectively the front to back ratio on; /archives//html/VHFcontesting/2017-09/msg00112.html (14,327 bytes)
13. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Bill Olson <callbill@hotmail.com>; Date: Thu, 14 Sep 2017 18:14:09 +0000; Mark, Good point if you have to set up each antenna on a separate mast at each location. On my 10 band rover, 2M-3456 were already roof mounted and ready to go, 6M was a separate mast that took about; /archives//html/VHFcontesting/2017-09/msg00114.html (15,874 bytes)
14. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Zack Widup <w9sz.zack@gmail.com>; Date: Thu, 14 Sep 2017 14:15:25 -0500; The antenna testing range is done every year at Central States VHF Conference. Usually on Friday morning of the conference out in a hotel parking lot. May be changed to Saturday if it rains. Kent WA5; /archives//html/VHFcontesting/2017-09/msg00117.html (11,308 bytes)
15. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: K7XC Tim Marek <k7xcnv1@gmail.com>; Date: Thu, 14 Sep 2017 21:21:27 +0000; A LPDA is a compromise antenna at best. On top of that I don't think their made to use on a full-time Rover. That is alot of money for a compromised solution. The real question is are you willing to; /archives//html/VHFcontesting/2017-09/msg00118.html (15,357 bytes)
16. Re: [VHFcontesting] Log Periodic ? (score: 1): Author: Mark Spencer <mark@alignedsolutions.com>; Date: Thu, 14 Sep 2017 14:53:08 -0700; In so far as I typically take pruning shears with me on my outings in case I need to remove tree branches encroaching into access road right of ways I don't see myself mounting masts and antennas bey; /archives//html/VHFcontesting/2017-09/msg00119.html (12,139 bytes)

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