Moxon Antenna for LRS TX

This is first Moxon antenna I made. It looks like having 5db more gain then RMILEC  SRC771 1/2 Wave Length Antenna (according my simple measurements).

As always my RF generator’s used to drive TX antenna, and Immersion RC power meter, connected to dipole antenna to measure signal level.

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RMILEC  SRC771 generates -28,03 dBm

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And moxon antenna…

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Generates -23 dBm

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So it seems to be better, but i wonder if gain shouldn’t be grater.

Using directional coupler i found out that lowest SWR is for 420 Mhz, but i’m not sure how to tune it…

An antenna looks like following.

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All measurements were found on this page.

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You can download stl files and print your own antenna frame from here.

 

 

 

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