
<span class="c">!              AND THE DEMODULATION FREQUENCY F</span>
<span class="c">!              MUST BE SUCH THAT</span>
<span class="c">!              N - 2/F BE GREATER THAN ZERO.</span>
<span class="c">!              FURTHER, SINCE A PLOT WITH BUT</span>
<span class="c">!              1 POINT IS MEANINGLESS</span>
<span class="c">!              AND OUGHT ALSO BE EXCLUDED,</span>
<span class="c">!              THE REQUIREMENT IS EXTENDED</span>
<span class="c">!              SO THAT N - 2/F MUST BE