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Author Topic: 1/4 Wave from 5/8  (Read 442 times)
KC8PTB
Member

Posts: 19




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« on: March 24, 2004, 05:19:40 PM »

All - Silly question for the day.  I have an old 5/8 wave mag mount 2-meter ant.  Due to some clearance issues I want to turn it into a 1/4 wave.  I know I'll give up some performance, but that is not my primary concern.

So, when I cut the whip to lenght, do I measure from the mounting surface or the point at which the whip enters the mag mount housing?

Jim KC8PTB
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K5LXP
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Posts: 4506


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« Reply #1 on: March 24, 2004, 06:49:59 PM »

Don't cut anything. The base of the 5/8 wave is a matching coil, which would be inappropriate to feed a 1/4 wave.

I suggest you put the 5/8 away and buy a quarter wave. The 5/8 wave is too valuable as is, a quarter wave can be purchased or built very cheaply.

Mark K5LXP
Albuquerque, NM
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KC2MMI
Member

Posts: 620




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« Reply #2 on: March 26, 2004, 03:42:57 PM »

Jim-
 What Mark said. For $15 you can get a decent 1/4w magmount from a half dozen companies. Think of it as "I'm buying fresh new uncrushed coax cable and GEE, look at that, there's a whole new antenna included for free!"

<G>
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