[TenTec] Lowest loss matching an antenna for my Argonaut 509

[d.e.warnick at comcast.net]

You see, this is what ham radio is, or at least used to be, about. The variables are so broad that there is no simple answer. So, the ham should build an 'L' network and try it and make measurements. Then rearrange the components and measure again. And on, and on, and on. Much of the joy is in solving the problem and gaining in knowledge as we do it. Experiment a lot. No one will have the exact answer as no one has exactly your situation. Yes, many, like Jerry, will offer great advice which is an excellent place to start experimenting, but only you can come up with the best answer for your situation.

Dave
WA3MKB

-------------- Original message -------------- 
From: "Bill Ames" <billa at aob.com> 

> Then the question would be, if I selected the right materials (torrid and 
> wire) and a proper design (number of turns, etc.) then would this be the 
> least loss matching device? If yes, what material and design would be best? 
> 
> Bill 
> 
> KB1LG 
> 
> -----Original Message----- 
> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com] 
> On Behalf Of Dr. Gerald N. Johnson 
> Sent: Wednesday, May 07, 2008 11:31 AM 
> To: tentec at contesting.com 
> Subject: Re: [TenTec] Lowest loss matching an antenna for my Argonaut 509 
> 
> On Wed, 2008-05-07 at 11:15 -0400, Bill Ames wrote: 
> > Would the problem with the torrid be that the core might saturate and that 
> > is where the loss would come from? 
> > 
> > Bill 
> > KB1LG 
> > 
> Ferrite always has some loss. Its the trade off between high 
> permeability (and hence compact transformer or balun) and loss. Driven 
> to saturation, the loss (and harmonic distortion) increases very much. 
> For a given permeability, cores from different makers will have 
> different losses and thresholds of saturation. 
> 
> 73, Jerry, K0CQ 
> 
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