| 摘要 |
<P>PROBLEM TO BE SOLVED: To automatically set a frequency span of a spectrum analyzer. <P>SOLUTION: Starting with a high reference level, a power level can be automatically measured for each band of a spectrum analyzer. If a suitable minimum power is not found in one of a plurality of bands, the reference level can be decreased automatically, iteratively and gradually until the suitable minimum power is found, or until the most sensitive power level is reached. When power on any band is greater than a predefined noise criteria, a band having the highest power level can be selected, and the center frequency and span for the band measuring the highest power level can be automatically set. <P>COPYRIGHT: (C)2013,JPO&INPIT |
