Topband: tower effecting antenna

[Alan Wells]

I have a 60feet tower with a 20 feet  glass firbe pole in the top, on topband i have a 80 feet wire going vertical to the top of tower  spaced 3 feet from the tower, and 2 loading wires about 60 feet coming off the top. i am sure the tower is having some effect on the sytem, as anybody had the same problem.

thinking of using the tower as part of the antenna putting a 20 feet aluminimun pole in the top, then using 4 loading wires from the top , the tower is grounded, about 18 feet up the tower there is 2 lugs i can put a gamma arm out and tune from the shack, i know the gamma arm is usually right at the top, if i put enough top loading on would this tune at the 18 feet point.

                                                                          many thanks
                                                                          g4erz