I was wondering if i could make a motorised tripod with 5 directional aerials pointed in a + shape mounted on the moveable bit on the tripod, and make a tiny circuit that transmits a signal to the directional aerials, so that when the transmitter is stationary the signal is going into the centre aerial, however when you move it the transmitter to the right the signal goes down the right side directional aerial, what i want is that when the signal is detected in the right aerial, it engages the motor which swings the tripod to the right and vise versa with left, up and down. what i want is the transmitter to be as light as possible but still be able to transmit atleast 300ft(including the transmition range from the directional aerials) and be as light as possible. i was thinking i could program a PIC chip and write a program that says when signal in left aerial is strongest move left etc, thanks, vane