The Frederick Amateur Radio Clubs very own Sandy KB3EOF and Steve KC3MAU have designed and built Delta Loop antenna for GMRS.  You can build one too…  The video below walks through how it was designed and how to assemble it as well as how it performs.  Be sure to like the video and give it a thumbs up!

Links

3D print on Thingiverse: https://www.thingiverse.com/thing:5119051