Hi. I have been assigned the task of designing an interesting experiment involving waves of any kind for physics class. I have chosen to focus on radio waves for my experiment and this is the basis of it: Three antenna's will be tested for point to point transmission (VHF): [ 144 MHz ] >>3/4 Wave antenna >>1/4 Wave antenna >>5/8 Antenna (Best Angle of Radiation Usually) These antennas will be connected to a VHF radio transceiver, a voice signal will be transmitted and this will be measured with a field strength meter. The purpose of the experiment is to test whether vertical polarization vs horizontal polarization will make a large difference in field strength. (basically testing antenna up straight and then again when horizontally polarized and looking for differences in field strength). My aim is to produce data which can be graphed illustrating the differences in field strength based on the different antennas as well as the polarization differences. I am hoping that this can lead on to an explanation of how angles of radiation affect directivity and gain. Also I am wondering whether to build the antenna's professionally (I have the equipment to do so), or to demonstrate the simplicity and to simply use wire. (The reason I have chosen these antennas is because they are the types that will match my transciever impedance) Any suggestions/help/advice are NEEDED!, I would highly appreciate it.