LDAB AlO WFSET

ILocal)

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Let G :.m4

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shows the HP-IB address of the Lo source.

defines the standard type as a load (termination). Loads are assigned a terminal impedance equal to the system characteristic impedance ZO, but delay and loss offsets may still be added. If the load impedance is not ZO, use the arbitrary impedance standard definition.

initiates measurement of a calibration standard load without offset.

initiates measurement of a calibration standard load with offset.

presents the load sequence from disk menu. Select the desired sequence and the analyzer will load it from disk.

This key is used to return the analyzer to local (front panel) operation from remote (computer controlled) operation. This key will also abort a test sequence or hardcopy print/plot. In this local mode, with a controller stilI COMeC!ted on HP-IB, the analyzer can be operated manuaIly (locally) from the front panel. This is the only front panel key that is not disabled when the analyzer is remotely controlled over HP-IB by a computer. The exception to this is when local lockout is in effect: this is a remote command that disables the m key, making it difficult to interfere with the analyzer while it is under computer control.

activates a logarithmic frequency sweep mode. The source is stepped in logarithmic increments and the data is displayed on a logarithmic graticule. This is slower than a continuous sweep with the same number of points, and the entered sweep time may therefore be changed automatically. For frequency spans of less than two octaves, the sweep type automatically reverts to linear sweep.

displays the log magnitude format. This is the standard Cartesian format used to display magnitude-only measurements of insertion loss, return loss, or absolute power in dB versus frequency.

displays the logarithmic magnitude value and the phase of the active marker in Polar or Smith chart format. Magnitude values are expressed in dB and phase in degrees. This is useful as a fast method of obtaining a reading of the log magnitude value without changing to log magnitude format.

Koy Definitions B-23

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HP 8753E manual Ldab AlO Wfset ILocal, Let G .m4