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Old Nov 04, 2010, 03:45 PM
IBCrazy is offline
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Engineer for Christ
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Amherst, VA
Joined Jun 2006
11,093 Posts
The calculations: Your 1/4 wavelength

All you need is one calculation:
Length in inches = 2808/f in MHz
Or for you metric folks:
Length in mm = 71323/f in MHz

So for 910 MHz, this is 3.086 or 78.3mm
For 1280MHz 2.19 or 55.7mm
Easy as that!

Now we move on to the construction.

-Alex
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