CL schrieb:

Eh, I did say I had tried a "previous" version of the ground plane. It did
"seem" to work ok. At that time, I didn't have 1/4 of the equipment I now
have.

Your initial posting implied (to me) that you are a professional seller
of this antennas (and maybe other equipment).
Sorry when I was wrong. As a "normal user" you may have trusted the
manufacturers "promises".

regards,
Volker