HP 8753E Allows you to set different power levels at each port, Frequency and power loss value

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allows you to set different power levels at each port.

makes power level the active function and sets the RF output power level of the analyzer’s internal source. The analyzer will detect an input power overload at any of the three receiver inputs, and automatically reduce the output power of the source to -85 dBm. This is indicated with the message “OVERLOAD ON INPUT (R, A, B).” In addition, the annotation “Pl” appears at the left side of the display. When this occurs, set the power to a lower level, and toggle

.%MWX PWR oti OFF . If power meter cal is on, cal power is the active entry.

sets the external LO hxed power.

sets the external LO power sweep.

brings up the segment modify menu and segment edit (power loss) menu explained in the following pages. This softkey is intended for use when the power output is being sampled by a directional coupler or power splitter. In the case of the directional coupler, enter the power loss caused by the coupled arm. Refer to Power Loss Feature on a previous page.

This feature may be used to compensate for attenuation non-linearities in either a directional coupler or a power splitter. Up to 12 segments may be entered, each with a different

frequency and power loss value.

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toggles between &!%%A or $384$&J?. These power meters are HP-IB compatible with the analyzer. The model number in the softkey label must match the power meter to be used.

turns on a power sweep mode that is used to characterize power-sensitive circuits. In this mode, power is swept at a single frequency, from a start power value to a stop power value, selected using the m and (3KjYJ keys and the entry block. This feature is convenient for such measurements as gain compression or AGC (automatic gain control) slope. lb

set the frequency of the power sweep, use cSr,~FW$t. in the stimulus menu. Refer to the User’s Guide for an example of a gain compression measurement.

Note that power range switching is not allowed in power sweep mode.

In power sweep, the entered sweep time may be automatically changed if it is less than the minimum required for the current configuration (number of points, IF bandwidth, averaging, etc).

presents a menu to select a factory or user defined preset state. is used to select the preset conditions defined by the factory.

Key Definitions 9-33