[TowerTalk] Hygain 105 (custom) beta match

[K7GCO@aol.com]

In a message dated 7/17/00 10:55:12 PM Pacific Daylight Time, n4vi@diac.com 
writes:

<< 
 I'm in the process of taking a Hy-gain 105-BA I purchased used some time
 ago and putting it together with my owns dimensions.
 
 Unfortunately, I've discovered that the beta-match hardware is missing. 
 For all I know, the raccoons ran off with it.  That said, it doesn't
 look all that complicated to duplicate, i.e. I could get "beta rods"
 from Texas towers, but finding or making the clamping/support mechanisms
 appears to be problematic!  At least for the "mechanically challenged"
 like me!
 
 Anyone have any ideas for mechanical construction of a Beta match.  Is
 there aluminum or steel "stock" material I could buy to form the
 supports I would need?
 
 
 Or another way to look at the question...  Are there any articles I
 could reference that show Beta match design using materials I could find
 at a well stocked hardware store?
 
 Thanks for your help!
 
 73's
 
 Chris, n4vi
  >>
   All you have to know is there is a certain length of hair pin that will 
give 1:1 SWR if the DE is the same length.  That's a quick cut and try 
procedure--forget all that theory.  Make one up with a movable shoring bar 
just using 2 aluminum parallel tubes.  Run the coax inside the tubing.  I 
used to use a soft version of aluminum tuning I could bend with my hands 
available at Boeing Surplus for making hair-pin matches.   k7gco

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