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Building A Loading Coil for Vertical Antenna

Jun 16th, 17:25

KL7YB

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
I am building a multi band vertical antenna using aluminum tubing. I need to build a loading coil to compensate for the short section of tubing I am using. I am using 10 gage aluminum wire to make the coil, but since it is not covered, I need to create a small space to separate the turns. The coil form is 1 inch OD hi density plastic. I am thinking that the correct size threading die should work, but not sure what size or pitch should be used. If any one has a suggestion or has done this before, I'd appreciate any information available.

73

Bill
KL7YB
Jun 17th, 07:50

W1VT

Super Moderator

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
https://hamwaves.com/inductance/en/index.html#input
I've used this page to optimize coil Q via trial and error.

Zak W1VT
ARRL Senior Lab Engineer

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