[TowerTalk] Hustler 6BTV vs Steppir Big IR Vertical on 80m

[Ian White GM3SEK]

David Gilbert wrote:
>
>
>I have to agree with Jim, N2EA.  Add some top loading wires (more short
>ones is better than fewer long ones) to your existing 32 foot vertical,
>build an L-network tuner for the base, and make sure you have a very
>good radial system.  You'll put out a better signal than the 6BTV, and
>equal or better than the BiggIR at far less cost.  If you need a wide
>bandwidth for 75m SSB, make the L-network coil adjustable with a relay
>or two.
>
>For what it may be worth, I've found that EZNEC models top loading wires
>pretty well so you should be able to get pretty close the first try, and
>there are web sites and free software programs (such as TLW that comes
>with the ARRL Antenna Book) that will calculate the L-network for you.
>
>73,
>Dave  AB7E

With one more capacitor, it probably wouldn't be difficult to make the 
same network match on 40m as well, without switching. As a 
starting-point, try doubling all the L and C values in this 40/20m 
design:

http://www.arrl.org/qst/2005/09/richardson.pdf



-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek