Topband: Your 2 wire Beverage

[Mike Waters W0BTU]

Hi Rick,

My Beverages are made from homebrew ladder line. It's made from .061" galvanized electric fence wire and 1/4" diameter spacers made from plastic coat hangers.

It is extremely strong. A large, heavy branch fell on one of the Beverages last May, and the wire didn't break.

I made a drill press fixture with a piece of wood and small nails, and between that and a band saw, knocked out the spacers in short order.

I wanted to have it 10' high to clear a rider on a horse, so I calculated the wire spacing so that the antenna impedance would equal the line impedance (1.10") . That way, you can use 1:1 transmission line reflection transformers.

I have some photos I can put up on a Web site when I get time.

73,
Mike Waters
W0BTU


--- On Wed, 1/13/10, Rick Stealey <rstealey at hotmail.com> wrote:

> From: Rick Stealey <rstealey at hotmail.com>
> Subject: Your 2 wire Beverage
> To: mrscience65704 at yahoo.com
> Date: Wednesday, January 13, 2010, 8:06 AM
> 
> 
> 
> 
>  
> 
> Thanks for the info.  Do you run separate wires, or
> ladder line or what?
> 
> > Date: Mon, 11 Jan 2010 06:19:03 -0800
> > From: mrscience65704 at yahoo.com
> > Subject: RE: Topband: Success!
> > To: rstealey at hotmail.com
> > 
> > Hello Rick,
> > 
> > I meant the type of Beverages where I can flip
> them 180 degrees. And yes, I wound my own transformers.
> I'm using 73 material; 2T sec / 5T pri for the feed end
> transformers, and 1:1 for the reflection transformer. Would
> you like more details?
> > 
> > 73,
> > Mike Waters
> > W0BTU
> > 
> > 
> > --- On Mon, 1/11/10, Rick Stealey
> <rstealey at hotmail.com> wrote:
> > 
> > > From: Rick Stealey <rstealey at hotmail.com>
> > > Subject: RE: Topband: Success!
> > > To: mrscience65704 at yahoo.com
> > > Date: Monday, January 11, 2010, 6:09 AM
> > > 
> > > 
> > > 
> > > 
> > >  
> > > 
> > > 
> > > That's all I have here -- two 580' bi-directional
> > > Beverages. Do they ever play!
> > > 
> > > 
> > > Mike, 
> > > Do you mean an unterminated Beverage, or one where you can
> > > flip it 180 degrees?
> > > 
> > > If the latter, did you make your own transformers?
> > > 
> > > Rick   K2XT