Radio Road

Posted by csericks (A) on February 02, 2007 at 17:19:10

I am planning to experiment with the DIY Modified Cubical Quad by Ethan Funk as described in these threads. I assume that this antenna is constructed from bare wire - is that true. Sorry for such a question but I am new to this world of antennas.

• Re: Dumb antenna construction - Ron Oehlert 18:10:53 02/02/07 (3)
  In Reply to: Dumb antenna construction posted by csericks on February 2, 2007 at 17:19:10:

  Since the smaller loop overlaps the larger loop along half one side & bottom, I'd think insulated wire should be used for construction, else a short occurs negating the two loops. This info was posted by me in the previous threads; read ALL of them for clarity as some confusion arose.
  
  

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  • Re: Dumb antenna construction - csericks 18:32:29 02/02/07 (2)
    In Reply to: Re: Dumb antenna construction posted by Ron Oehlert on February 2, 2007 at 18:10:53:

    Why wouldn't you just fashion the loops out of the 300 ohm wire itself - thus saving a set of connections - I imagine that I am making myself appear even more ignorant but thanks for your insight.
    
    

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    • Re: Dumb antenna construction - Ron Oehlert 07:04:43 02/03/07 (1)
      In Reply to: Re: Dumb antenna construction posted by csericks on February 2, 2007 at 18:32:29:

      Do not construct the antenna portion from 300-ohm twin-lead or the doubled-up wires will skew the feed-point impedance match, nullifying the design signal gain. Thus you would need to split the twin-lead down the middle for the antenna portion which results in 2 splice-connections for their ends anyway = nothing to be saved. Be sure to view the 3-D video of the antenna for loop relationship, as poor spatial concepts caused the prior confusion (link to video in previous thread).
      
      

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      • Thanks Ron! - csericks 08:59:29 02/03/07 (0)
        In Reply to: Re: Dumb antenna construction posted by Ron Oehlert on February 3, 2007 at 07:04:43:

        Thanks.
        
        

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• should read Dumb antenna construction question - csericks 17:25:46 02/02/07 (0)
  In Reply to: Dumb antenna construction posted by csericks on February 2, 2007 at 17:19:10:

  sorry :-)
  
  

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