This bung works with the Pan Pacific RFA-8381BNC Female to SMA female adapter. I didn't feel comfortable with the skinny bit in the middle so I created this to keep it stable. 

Thingiverse 3D file

Been going all over the place today. I started around 5am and modified Chang Puak's Yagi-Uda calculator to suit my needs. I needed to add elements and his first calculator had that, but didn't show dipole length and his new one didn't allow for adding elements. So I merged the two a bit. Can be seen here. 

I believe I'm going to build a Yagi-Uda antenna to do a little fox hunting on the repeater I frequent. We have two jerkoffs that want to cause chaos on the frequency I figured I can do a little dox'ing to return the favor. I also bought a 20$ SDR to do a little testing with. 

This is what I have built for my Scanner and for my Radio.

PDF File here

It is based on this production antenna