The RF-Video PM-300S is an industrial grade yet affordably priced FM transmitter for use in professional broadcast studios. Audio is broadcast fully synthesized in the 88-108 MHz frequency range and does not require manual adjusting or tuning. A host of internal controls, including special audio limiters and band filters, ensure outstanding clarity and fidelity through all of its available frequencies. Front panel rotary dials provide easy power output level adjustments, from a minimum low of 0 to a maximum high of 320 watts.