Fast wideband search for spurious responses |
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Authors: | Cassidy K Snell J |
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Institution: | Tektronix Federal Syst., Inc., Beaverton, OR; |
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Abstract: | A technique for quickly searching frequencies in a signal path to find and measure low-level spurs is described. It couples a wideband tuned receiver with a tuned digital, parallel filter bank analyzer to greatly reduce spur testing times. The receiver is step-tuned across the region of frequencies to be searched, and at each step the filter bank is step-tuned across the IF output. An example system is described, and search time and sensitivity are discussed |
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