Topband: Matching Transformer

[Joe Subich, W4TV]

> Here it is:......a ROG or radial on ground (attached only to 
> the tower ground) gains some length due to the VF laying on 
> earth.....this allows for shorter radials that appear to be 
> at RF longer. 

Radials on the ground are not resonant.  In that application 
you don't care about resonance as they are simply a device 
for collecting the return currents and increasing conductivity 
in the ground.  Quite simply, with on/in ground radials, it is 
the area they cover that is important ... not whether they are 
resonant. 

73, 

   ... Joe, W4TV 
 
 




> -----Original Message-----
> From: topband-bounces at contesting.com 
> [mailto:topband-bounces at contesting.com] On Behalf Of Herb Schoenbohm
> Sent: Saturday, December 27, 2008 9:18 AM
> To: Jim Brown
> Cc: topband at contesting.com; AD5VJ Bob
> Subject: Re: Topband: Matching Transformer
> 
> 
> Jim Brown wrote:
> > On Fri, 26 Dec 2008 18:35:06 -0600, AD5VJ  Bob wrote:
> >
> >   
> >> This ground is not a stake in the ground at the end of the wire,
> >>     
> > Jim Brown wrote in reply: That is NOT a good thing. Don't do that!  
> > You want no coupling to your transmit antenna.
> >
> > Disconnect it and drive a stake, even if it's not a good stake or a
> > long stake. 
> >   
> Rising in disagreement with one of the best audio engineers on the 
> planet is dangerous....but "fools rush in where angels fear 
> to tread"...
> 
> Here it is:......a ROG or radial on ground (attached only to 
> the tower 
> ground) gains some length due to the VF laying on 
> earth.....this allows 
> for shorter radials that appear to be at RF longer.  This 
> would help top 
> banders with limited space..  It may not help in RFI 
> situations but it 
> sure beats driving a metal stake or nail and the possible 
> effects of a 
> poor connection and corrosion over time.  I use huge spikes 
> but only to 
> secure the #12 or #10 solid electrical wire at the far end 
> wrapping it 
> around the spike but making the copper exposed end pointing 
> skyward out 
> of the ground after I pound the spike down.
> 
> Maybe I am doing it wrong...please let me know.
> 
> 
> 
> Herb Schoenbohm, KV4FZ _______________________________________________
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