you already have the screw adapted for the RC antenna on the controller. find a 5.8 dipole antenna and put a wind surfer on it. See if that woulds better. The panel antenna's that is in the etilite antenna works best with a dipole like the stock ones. I switched out to a clover leaf and made it worse.How do you recommend that I can increase the range of the RC ? modifying bird atennas ? I'm afraid of the black glue of death.
That way your not out a lot if it does not work. had you tried a wind surfer before?