HP 8753E manual To Activate Chop Sweep Mode, To Use External Calibration

To Activate Chop Sweep Mode

You can use the chop sweep mode to make two measurements at the same time. For example, the analyzer can measure A/R and B/R simultaneously. You can activate the chop mode by pressing preset) or by the following the sequence below.

For more information, refer to “Alternate and Chop Sweep Modes” in Chapter 6.

To Use External Calibration

Offloading the error correction process to an external PC increases throughput on the network analyzer. This can be accomplished with remote only commands, Refer to the HP 87533 Progmmmer’s Guide for information on how to use external calibration.

‘lb Use Fast a-Port Calibration

With the 2-port calibration on, faster measurements may be made by not measuring the reverse path for every forward sweep. This is controlled by the test set switch command.

When making measurements using full two-port error-correction, the following types of test set switching can be defined by the user:

nHold: In this mode the analyzer does not switch between the test ports on every sweep. The measurement stays on the active port after an initial cycling between the ports The fastest measurements can be made by using this type of test set switching. Pressing the m key or changing to a different S-parameter measurement will cause the test set to switch and cycle between the ports

nContinuous: In this mode the analyzer will switch between the test ports on every sweep. Although this type of test set switching provides the greatest measurement accuracy, it also takes the longest amount of time.

nNumber of Sweeps: In this mode there is an initial cycling between the test ports and

then the measurement stays on the active port for a user-dellned number of sweeps. After the specified number of sweeps have been executed, the analyzer switches between the test ports and begins the cycle again. This type of test set switching can provide improved measurement accuracy over the hold mode and faster measurement speeds than continuous mode.

1.‘lb access the test set switch functions, press:

2.‘Ib activate the hold mode, press:

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3. lb activate the continuous mode, press:

544 Optimizing Mearurement Results