is the mode used when peripheral devices are to be used and there is no external controller. In this mode, the analyzer can directly control peripherals (plotter, printer, disk drive, or power meter). System controller mode must be set in order for the analyzer to access peripherals from the front panel to plot, print, store on disk, or perform power meter functions, if there is no other controller on the bus.

The system controller mode can be used without knowledge of HP-IB programming. However, the HP-IB address must be entered for each peripheral device.

This mode can only be selected manually from the analyzer’s front panel, and can be used only if no active computer controller is connected to the system through HP-IB. If you try to set system controller mode when another controller

is present, the message ANOTHER SYSTEM CONTROLLER ON HP-IB BUS is displayed. Do not attempt to use this mode for wm--W3.

Each data point is measured during the initial sweep and the

correction data is placed in the power meter correction table.

,, ,......,.,.;,.,............,.,.,.,.,.i ,.__

This protides data usable h *e ~~~~~~: mode*

.,...; ......../._...~.~...i. ~.r.:..:::.~.:.:..

executes a receiver calibration.

is the mode normally used for remote programming of the analyzer. In this mode, the analyzer and all peripheral devices are controlled from the external controller. The controller can command the analyzer to talk, and the plotter or other device to listen. The analyzer and peripheral devices cannot talk directly to each other unless the computer sets up a data path between them.

This mode allows the analyzer to be either a talker or a listener, as required by the controlling computer for the particular operation in progress.

A talker is a device capable of sending out data when it is addressed to talk. There can be only one talker at any given time. The analyzer is a talker when it sends information over the bus.

A listener is a device capable of receiving data when it is addressed to listen. There can be any number of listeners at any given time. The analyzer is a listener when it is controlled over the bus by a computer.

makes target value the active function, and places the active marker at a specified target point on the trace. The default target value is -3 dB. The target menu is presented, providing search right and search left options to resolve multiple solutions

For relative measurements, a search reference must be defined with a delta marker or a tied marker before the search is activated.

Key Definitions 947

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Image 536
HP 8753E manual Key Definitions