@sir_lon Contact TF (044)24960275 or TF 24960234 on working days/during working hours after 1000AM. Try tomorrow. If the power is less than 100 mW, permission may not be necessary. FM B/C band is very crowded now, ( 88-108 MHz), and every likely hood your broadcast is heard in a radius of 1 Km ( depending on power/antenna height etc). Use a very short indoor antenna at ground level / GF room level.Post details of the Fm transmitter being used. Min Power freq to use /commercial / "homebrewed" in lab.Check with College authorities , whether they have an experimental Wireless license issued by WPC. Contact ANNA University Guindy "Electronics Dept". May be they can give you some info.