Hello Alan
Did you start with some ideal calculated length for 7.05 MHz, set the dipole at 7 feet high and then trim the length for best return loss? Or perhaps put up precut wire for a higher frequency and upon measuring found that 7.05 was the best match?
Do you have good soil conductivity? (Not dry, Rocky, Sandy soil?)
You are most likely operating NVIS but I¡¯m curious as to how you arrived at that configuration.
Jim
