flashing led cell phone antenna

[200fr]

I have a flashing blue antenna on my motorola t720, the led is like the size of a match head, the base is saquare and has some kind of glass resistor attached to it and it has a #2 on the resistor"i dont think it is a resistor though" is it?. any way i want to put a 3 mm led in it, 5mm wont fit,the voltage from the cell batt is 3.4 volts, do i need some other type of whatever is attatched to the led?

[mattheww50]

The Led is direct drive by the RF energy in the Antenna, and these things are very sore subject in the regulatory community. The LED on the end is a highly non-linear device, and as a result, produces a significant amount of spuriour radiation at frequencies that only pollute the airwave. The duty cycle is pretty short (217 times a second)for a total of 12.5% of the elapsed time.