HP Cable Box 8591C Using the Internal Preamplifier

Using the Internal Preamplifier

The HP 8591C cable TV analyzer is equipped with an internal preampliEer. Using a preamplifier with a spectrum analyzer can obtain a system (preampliEer and spectrum analyzer) noise Egure that is lower than that of the spectrum analyzer alone. This improves the system sensitivity for making low-level amplitude measurements.

However, a preampliEer does reduce the dynamic measurement range of the spectrum analyzer.

To turn the internal preamplifer on press C-1, then INT AMP ON OFF to underline ON.

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