EDM FM Radio Transmitter
In 2008, we purchased an FM transmitter that gave us a range of about 1/4 mile. We carefully scanned the surrounding stations to identify an unused frequency that we could use with our unlicensed transmitter. We selected 99.3 FM as our transmission frequency. My dad (a ham radio operator) helped us trim the supplied whip antenna to the optimal length for maximum power transfer. With the transmitter, we were able to extend our show until 10:30 PM. The speaker carefully hidden in the bush still turned off at 9:30 PM and the radio transmitter stayed on till the end of the show. Aldo, we used a "for sale" sign that we picked up at the local hardware store to advertise the frequency. Tina painted the sign white and then the words "tune to 99.3" in black writing. We used a stake-in flood light pointed at the sign to light it up. We dedicated one channel to this sign so that we could dim the light during songs.