40m Magnetic Loop Antenna with Modifications 

Here is the final version of my 40m magnetic loop antenna using my homebrew hi-voltage variable capacitor. As I mentioned yesterday, I fixed an issue with the variable capacitor feed screw. Today I set it up outside handing from a tree as before. The difference is that the capacitor is now at the 3 o’clock position to facilitate tuning without a ladder. This moves the feed point to the 9 o’clock position. No changes were made to the pvc supports as I merely change the position. I read a 1.31 SWR at 7.039 MHz with am fully engaged. I am running 1W WSPR on it now and will report results tomorrow. Here is what it looks like in operation:

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