Agilent Technologies E4406A manual Mode Setup, Input Keys

NOTE

Setting the Mode

Mode Setup

Mode Setup

When you select a mode the instrument automatically presets settings to defaults for that mode. These defaults apply to all measurements in the mode.

Mode settings are persistent. When you switch from one mode to another mode, the settings you have chosen for the modes will remain active until you change them. This allows you to switch back and forth between modes without having to reset settings each time. Presetting the instrument will return all current mode settings to their default values. Powering the instrument off and on will reset all mode settings to their default values.

Before making measurements, it is important to set the parameters under the mode setup key for the device to be tested. These parameters are not saved when you preset or power the instrument off and on, so you may want to save them in an instrument state for later use.

The Mode Setup key accesses: (1) the Input key menu of features including selecting inputs, changing input attenuation, and modifying IF align settings, and (2) the Trigger key menu which lets you to choose trigger setup states for the instrument.

Input Keys

By pressing the Input key you access menus that select an input port, adjust input attenuation, and adjust the IF align signal.

Activate an Input Port and Adjust Input Power

•Input Port key. The Input Port menu key accesses a menu which allows you to select one of the following input keys: RF, 50 MHz Ref, and IF Align. These keys are explained below.

RF key. Use the RF key to reactivate the RF input after a different input has been activated. This is a 50 Ω connector.

50 MHz Ref key. Selects the internal 50 MHz CW reference signal. The displayed signal amplitude will be −25 dBm.

IF Align key. The IF align signal is an internal calibration signal used during the auto align process.

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