bsman

hi all, my project involves using an FM transmitter. my project assumes the received audio signal has already gone through an FFT (i plan to do this in software with a dsp). however, my dsp chip only operates at 40 MHz. I was wondering what kind of RF transmitter i should use that would allow me to tune this signal to a carrier fequency between 88 and 108 MHz (FM radio standard). basically, i need an RF transmitter that assumes the signal has already gone thru a FFT, but has not been tuned to a carrier frequency. any suggestions? i plan on modifying a circuit that i found online here: