[Elecraft] K2 ATU and 43-ft Vertical

[Steve Ellington]

Paul:
Wire works exactly the same as aluminum so don't get carried away with the 
shiny look!

The S9 approach makes sense. A few wires lashed to the pole or inside the 
pole will do.

80m is where the need for lots of radials come in since 43' is considered 
short for that band.

Spend the $$ saved on aluminum on a remote tuner.

Coax will do ok except for 80m where the Z is very low and SWR high.

The K2's tuner will do fine but on 80m there's a risk of excessive current 
through the tuner's torroids. I've burnt them up on low Z antennas before.

Above 14 mHz, a 43' vertical develops a high angle lobe, straight up, and 
isn't considered good for DX but will work.

An inverted L, 100ft long, would be a better antenna and cheaper!

Reads:
http://www.eham.net/articles/21272

Got money?
http://www.dxengineering.com/Parts.asp?ID=3408&PLID=286&SecID=142&DeptID=45&PartNo=DXE-MBVE-1-3ATP

Rigging it up to work better:
http://www.ad5x.com/images/Articles/Match160.pdf

Ultimate....No tuner needed. Low loss. Green.
http://www.steppir.com/files/Vertical%20FACT%20Sheet.pdf




Steve
N4LQ
----- Original Message ----- 
From: "Paul Huff" <phuff at mi.rr.com>
To: <elecraft at mailman.qth.net>
Sent: Saturday, June 05, 2010 6:20 PM
Subject: [Elecraft] K2 ATU and 43-ft Vertical


> Does anyone have any experience with trying to match one of these 43-ft
> verticals, that are being offered by several manufacturers, using the K2s
> internal ATU?  Is it able to find a match on 80-meter CW?  Are there any
> particular brands of 43-ft verticals that you like or don't like?  Most of 
> these
> verticals that I have seen are in the mid to upper $300 range, except for 
> the
> fiberglass one from S9 Antennas.  Any opinions on that particular antenna?
>
> Thanks in advance for any information offered.
>
> 73,
> Paul - N8XMS
>
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