The Chameleon Antenna has further details on these products. My cost is $340.00 I'm asking $275.00. On first try I contacted a half dozen folks during the Florida QSO party from Calgary and they reported good signals. You can see it deployed on my QRZ page using a 15' Porta Mast. Thanks for your interest.
Claude Benoit
VE6GTX
isphotoman@icloud.com