The stationary FM transmitter has the capability of broadcasting on 57 channels. The transmitter has a SNR of 80dB or greater. The output power shall be adjustable to quarter, half or full. Channel tuning is capable of being locked. The device broadcasts on both wide and narrow band channels. The device has an audio frequency response of 63 Hz to 15k Hz, ± 3dB at 72 MHz, or of 63 Hz to 10k Hz, ± 3dB at 216 MHz. It has have two mixing audio inputs. The device has the following audio controls: input level, mix level and an adjustable low pass filter. The device has an audio processor that is capable of automatic gain control and limiting.