[TowerTalk] Laws of Physics Repealed!

[David Gilbert]

Same here.  I had an R5 (bought new) on top of my flat roof house for a 
couple of years, and it was by far the very worst performing antenna I 
have ever owned.  I finally put up a single 16 foot vertical using the 
same coax, connectors, etc, with random wires spread across the roof for 
a counterpoise of sorts, and it was light years better.  Seeing what was 
inside the little "matching box" on the R5 told the tale.

I ended up selling the R5 to a guy who really wanted it, and I felt 
guilty doing so.

Dave   AB7E



On 10/23/2015 1:24 PM, Wayne Kline wrote:
>   Gotham  ,, HOLY antenna Bat-Man .... that bring back memories haahahaa.
>   
>   My . 02...... from the description  given and my choices were
>   
> A.  R-9
> B.  Dummy load
>   
> I think  I would lean  towards choosing " B "
>   
>   
> Wayne  W3EA
>
>   
>> From: k4kyv at hotmail.com
>> To: towertalk at contesting.com
>> Date: Fri, 23 Oct 2015 20:13:51 +0000
>> Subject: [TowerTalk] Laws of Physics Repealed!
>>
>>
>> First there was the Gotham Vertical.  Then the infamous Max-Com automatic antenna matcher.  Now, Cushrcaft is in on the action.
>>
>> "R9"
>>   vertical.  Low angle radiation gives incredible, easy, world-wide low
>> band DX on 75/80m and 40m, plus it covers 30 through 6m with low
>> VSWR on all bands, with broadband matching transformer; no antenna tuner
>> needed. Low profile blends inconspicuously to keep your HOA happy.  31.5
>>   ft tall.  Best of all, NO RADIALS NEEDED!!!
>>
>>   Only $639. Just plug in your plastic radio and talk, talk, talk!
>>
>> See November, 2015 QST, page 2.
>>
>> Amazing
>>   that hams (or maybe I should say HAMs) swallow that crapola.  31.5 ft
>> is only an eighth wavelength on 75/80m. The base impedance of a 1/8
>> wavelength vertical is about 12 ohms. No matter how much gimmickry such
>> as stubs, loading coils, toroidal transformers and porcupine spikes are
>> added, that thing will basically be a dummy load unless it is used with a
>>   SUBSTANTAL radial ground system.  A couple of 8' ground rods won't cut
>> it.
>>
>> I had always considered Cushcraft, which has been in the business for decades, a reputable outfit, but this makes me wonder.
>>
>>
>> Don k4kyv
>>   		 	   		
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