gary in ohio
Explorer
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.....fold-over ability for entry into low overhead clearance areas. Power rating is 200/200 watts. The connector type is a gold-plated UHF/PL-259. Black finish. Grounding is not required."
Where did you find Grounding not required? I have yet to find a referance at any vendor or diamond's web site that say this is a Ground less antenna.
From a functiona; standpoint the antennas will be grounded, through the mount and/or coax. Now you may not need a ground plane but you will need a ground to the antenna.