Topband: T vert feed

[Jeff Blaine]

Would not each one remain 100 ohms?

If the analysis is correct, they are in parallel and that does not add 
linearly based on the individual wire values as would a series connection.

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: Charles Moizeau
Sent: Monday, January 30, 2012 12:37 PM
To: royanjoy at ncn.net ; Topband
Subject: Re: Topband: T vert feed


Nope.

With 100 Ohms per radial and 60 of them all the same and in parallel with 
each other, one gets 1.66666 Ohms; close enough.

73,

Charles, W2SH

> From: royanjoy at ncn.net
> To: topband at contesting.com
> Date: Mon, 30 Jan 2012 12:15:10 -0600
> Subject: Re: Topband: T vert feed
>
> 'Twas stated:
>
> "Feedline coax shield 1.7 ohms.
>
> The single 1.7 ohms lowers the voltage and even in this case of what
> appears to be an excellent ground radials system, the coax will carry HALF
> the counterpoise current and waste most of that power, besides being a
> link...(etc.)"
>
>
> Whaaat???
>
> Where did that 1.7 ohm figure come from....space?
>
> The size (gauge) of radial wires has very little effect on their
> effectiveness as radials, according everything I've ever read. Also,
> effective resistance to ground, due to such intimate coupling to earth 
> when
> radials are at the surface or buried, evens out their equivalent 
> resistances
> and reactances, rendering them "un-tuned." Not comparable to elevated
> radials at all. Voltage and current nodes on surface or  buried radials 
> are
> smoothed and averaged out rendering them un-problematic.
>
> If no balun, including a choke-type, is used at the feedpoint of a 
> vertical
> then the coax braid simply counts as another radial, averaged in with the
> many. Ferrites at the shack end can attenuate any residual RF on the braid
> if it is troublesome there (unlikely).
>
> 73,   Roy           K6XK            Iowa
>
>
>
>
>
>
>
>
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK

_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK