Setting the Analyzer Input Gain

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Normally the E7495A/B is set to add the most gain in the receive path to boost low-level signals. If the signal is high, there is no reason to add gain. When you're measuring a strong signal, select low sensitivity to reduce the gain in the receive path and lower the noise floor. For a low level signal, select High.

	Step	Notes
1	[Setup]
2	[Sensitivity]
3	Low or High

The Sensitivity setting is automatically switched to Low whenever the signal level at the test set's connector (that is, after any external attenuation has been applied) rises above -10 dBm. You can use the Noise Correction feature to recover any lost dynamic range.

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NOTE:

The Sensitivity setting is coupled to the Noise Correction setting. Changing the Sensitivity setting from Low to High will cause the Noise Correction setting to change from On to Off. Conversely, if the Noise Correction setting is changed from Off to On, the Sensitivity setting is changed from High to Low.

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