[ARC5] Is the list still live?

[Dennis DuVall]

Dave,

Agree for a 50 ohm load, but AC2EU is talking about a 50 foot long piece of wire, not a 50 ohm load.  Now, 50 ft. is kind of an awkward length for 40M falling between a
nominal quarter wavelength (approx. 32ft., low Z end fed) and  a half  wavelength (approx. 65 ft, and Hi Z end fed).  Fifty pf either series or shunt connected MIGHT  work out here OK but my recommendation would be to add 10-15 of wire and use the shunt (L network) configuration.

AC2EU
Dennis D.  W7QHO
Glendale, CA

> On Sep 17, 2015, at 10:12 AM, David Stinson <arc5 at ix.netcom.com> wrote:
> 
> 
> ----- Original Message ----- From: "J Mcvey" <ac2eu at yahoo.com>
> 
> 
>> I have learned that when they said "designed for short antenna applications", they weren't kidding!I can't load the 40 meter
>> unit on a 50 ft wire...too long!!!
> 
> Put a good, 1 KV or better NPO 50 pFd cap between
> the antenna post and your feedline.   I buy the 50 puff
> doorknobs from Eastern Europe and they work well.
> Prices are all over the map for doorknobs so shop around.
> Here's two 100 pFd for ten bucks:
> http://www.ebay.com/itm/111749985417
> Put one in line for 80 mtrs and two in series for 40.
> It will then load-up a 50-ohm antenna with no trouble.
> 
> 73 DE Dave AB5S
> 
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