spur free dynamic range definition
Theaudio lowpass filter is not required, butserves to minimize the effects of variations inaudio response from receiver-to-receiver. SPUR-FREE DYNAMIC RANGE Spur-free dynamic range (SFDR), as general-ly used, attempts to define receiver dynamicrange in terms of two undesired interferersand the receiver noise floor. As with the 1-dB compression dynamic range, it is basedon a mathematical manipulation of the pri-mary measurements of receiver range. In thiseffect seen in both the XX-R7000 and XXX-500 receivers.The significance of DDR is somewhatdependent on signal environment.