I'm using an FM transmitter that connects to the iPhone directly, called the i Trip FM transmitter. I popped open the menu button and very slightly bent open a spot for me to put a coax cable into it to make a long range antenna. I amplified the signal, but I noticed when the iPhone is not charging through the i Trip's Blackberry charger, the range is literally twice as far.
So I want to know, how long does the battery last if the iPhone 3G is only sitting in my room playing music through an FM transmitter? Remember, the charger makes the signal worse so I won't be using it. I'll be leaving it unattended for the time I'm at school for a total of eight hours.
Also, any tips on increasing range? I'm buying a 5/20DB amplifier with a built in splitter to use for my FM transmitter and my TV antenna.
The FCC won't be an issue because I'm using 1) a vacant station, and 2) The signal cuts out between two hills and the antenna's max height is 18 FT aboveground (Broadcasting from my bedroom in the window sill) but the house is on a 20 foot hill, totaling 38 FT above normal terrain.
Last, is it good for me to get this much range out of a normal FM transmitter? Range is ~800 FT, and I calculated that one foot simulates 6.666 miles on a normal radio station. It provides stereo range until 650 feet from transmitter and starts fading out around 775 feet. It's then dead at ~810 FT or ~775 FT at night due to night DX.