Also ridiculous is the notion someone must be on the honour roll to be
knowledgeable about antennas.
Sent from my iPad
> On Apr 12, 2015, at 2:36 PM, "Jeff AC0C" <firstname.lastname@example.org> wrote:
> Gear choices are a complete joke when talking about being active over a span
> of 50+ years - as a lot of the top honor role guys have been.
> Sure, some gear is better than others (antenna X is 2 db better than antenna
> Y) and in a shoot-out, the better beam will give the better signal by a bit.
> But that's a pretty small delta compared to solar conditions. I wonder what
> the SFI difference needs to be to provide an equivalent 2db better SNR to
> signals on the bands? I bet it's not very much.
> The fact is being on the bands when the condx are right - even if you don't
> have 20 elements at 200' - can get you in the log most of the time. 10m is a
> great example of that. When the SFI is sizzling (e.g 90's peak), a whip on
> the balcony with the railing as the ground system let's you work the world.
> For the high bands, when the cycle is down, all the antenna horsepower in the
> world won't burn a hole through to let you work the DX.
> -----Original Message----- From: Joe Subich, W4TV
> Sent: Sunday, April 12, 2015 2:24 PM
> To: email@example.com
> Subject: Re: [TowerTalk] [Bulk] Re: antenna choices for K4XS
>> On 2015-04-12 2:56 PM, David Blake via TowerTalk wrote:
>> and I on the other hand would suggest you look 1st for a used
>> Mosley. With only Mosley yagi's I am #1 Honor Roll (all 340 DXCCs)
>> and total DXCC confirmed 352. Looking at the ARRL Mixed DXCC list I
>> don't find K7LXC at any level
> K7LXC and N0AX published two widely respected *scientific* studies
> of tribander performance using validated measurement techniques to
> directly compare the performance of the tested antennas against a
> standard (dipole). These were field tests not some modelling exercise
> that failes to capture real world losses in the antenna design.
> In those tests, the Mosley antennas TA-33, PRO-57B and PRO-77 were
> the *worst* performers in their respective (small and large tribader)
> categories. The TA33 averaged less than 1 dB gain compared to a dipole
> on 20 meters and less than 1.5 dB gain compared to a dipole on 10
> meters. The PRO57B and PRO77 both averaged less than 1 dB gain
> compared to a dipole on 20 meters and more than 1 dB *LESS* gain
> compared to a dipole on 10 meters.
> The small tribander group typically showed 3 dB on 20 meters and 4 dB
> on 10 meters vs. a dipole while the large tribander group typically
> showed 4+ dB on 20 meters and 5 - 6 dB on 10 meters.
> Enjoy your Mosely ... I'm also on the DXCC Honor Roll (CW and Mixed)
> and my only antennas are a 20-10 meter dipole at 20 feet, an R5
> (vertical) with base at 20 feet, and a 160-40 meter trapped inverted V
> with apex at 40 feet. As has been said many times - anything that
> radiates will make QSOs.
> ... Joe, W4TV
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