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Old 10-Nov-2019, 12:38 AM   #33
GroundUrMast's Avatar
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
Originally Posted by Tower Guy View Post
You may use any reasonable gap that is convenient.
Agreed; If this was a transmitting antenna you would want to pay close attention to precise impedance matching so as to minimize power reflected back into the final amplifier stage of the transmitter. In a receiving application where you are simply trusting the design measurements and have no means of accurately testing the impedance of the actual as built antenna, the feed point gap is not going to be the one factor that makes or breaks the success of your project.
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

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