I finally got out to test the antennas, went about a mile line of sight with no issues! I got the PC drivers for the development kits from LPRS sorted out after a few emails. The connection is only one way after they antennas get about a half mile apart, but it’s a solid link!
Dev board hooked up to the receiving helical, feeding into the EasyRadio Companion software. This was a test of a few hundred yards, my dad was on the transmitting end at the top of the hill.
1 Mile test, receiving at the top of the hill, my dad at the very end of the road at the top of the picture.