I have purchased the antenna.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Hopefully this is the antenna! I see now why HDB4X fell short; it said it only had 15 mile range for VHF high band - no bueno.
For future reference, is there a website dedicated to listing the "truth" about each antenna - how well they would handle UHF, VHF-low, VHF-high, etc?