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Henrik and I have already talked about this matter off line. My antenna is a 5BA at 35 meters, up for 2 1/2 years. I agree 100% with his observations. I was skeptical of the actual performance improvement from my 5BA installation, prior to installation, compared to my previous antenna installation. Post installation, I was surprised and gratified at it's performance. A couple of caveats: Neither Henrik nor I have made direct comparisons with other comparable yagi antennas. Our antennas, installed at 30 meters, are a little higher than the average 20 meter height favored by so many hams. The 5BA is a heavy and high windload antenna. I am on my third rotator, now an Orion RC2800P. There is the cost of the three feedlines / switch box to consider with this particular antenna. The separate feedlines may be a partial reason for it's effectiveness. The gain and pattern is modest on 10 meters compared to some of the antennas you listed. My priorities were for solid performance on 20 and 15 meters and 10 meters is a band I seldom use. The 5BA benefits from some extra measures to maintain the integrity of the clamping connections with the feedlines and the hair pin matching loops. My 5BA mast to boom clamp is forever slipping on the mast. Don't know what to do to fix it. I love my 5BA and don't contemplate replacing it soon. Regards, John Petrich, W7FU ----- Original Message ----- From: "Henrik Weiss" <ozling@mail.dk> To: "Force12talk" <force12talk@qth.com>; "Todd Ruby" <rubywine@erols.com> Sent: Tuesday, August 06, 2002 1:51 PM Subject: SV: [Force 12 Talk] Comments Please > Todd, > I have the 5 BA which exceeds my expectations by any measure. I use to have > monoband yagis for 10,15 and 20 Mtrs but it was too much hazzle and > maintenance. The 5 BA is as you know without traps and other lossy > components and it is very very easy to assemble once you get the hang of it. > It took me only three hours to assemble the 5BA with its 15 elements and > three art boom. It has been up for 4 months at 31 mtrs ( 100 ft ) below my > force12 240 / 230 yagi at 115 ft. and I get reports on long haul dx that > superseed most other stations. Very easy to work with in pileups and I have > not experienced difficulties getting through pileups on the higher bands in > day time despite the relatively high height compared to the wavelenght (a > bit too low radiation angle). > > The 5 BA is according to my knowledge force12´s best 5 bander maybe except > for the c49xr which I dont know !! > > In any case I think you will get maximum performance (for whatever that may > mean) out of any force 12 yagi. > > Good luck. > > Henrik > OZ1ING (OZØR) > See my tower + antenna installation at > http://www.ddxg.dk/OZ1ING%20antenner%202002.htm Its in danish but the > pictures speak for themselves. > > > > > -----Oprindelig meddelelse----- > Fra: Todd Ruby [mailto:rubywine@erols.com] > Sendt: 6. august 2002 17:05 > > Til: Force12Talk@qth.com > Emne: [Force 12 Talk] Comments Please > > > Hello Force 12 list folks > I would love to hear as many comments based on your experiences as > possible on the following 3 antennas: > C49XR and 5 BA and the WARC 7. > > mny tnx > > todd ruby > WB2ZAB > > > > -------------------------------------------- > Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. > Force12 Web Site: http://www.force12inc.com > > To Submit Message to the List: Force12Talk@qth.com > To unsubscribe and view the Message Archive: see http://qth.com/force12/list > For problems with the list: contact n4zr@qth.com > > > > > -------------------------------------------- > Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. > Force12 Web Site: http://www.force12inc.com > > To Submit Message to the List: Force12Talk@qth.com > To unsubscribe and view the Message Archive: see http://qth.com/force12/list > For problems with the list: contact n4zr@qth.com > > -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force12 Web Site: http://www.force12inc.com To Submit Message to the List: Force12Talk@qth.com To unsubscribe and view the Message Archive: see http://qth.com/force12/list For problems with the list: contact n4zr@qth.com |
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