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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 4PRESET5 or by the following the sequence below.
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Press 4CAL5 MORE CHOP A and B .
For more information, refer to \Alternate and Chop Sweep Modes" in Chapter 6.
To Use External Calibration
Ooading 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 8753D
Programmer's Guide for information on how to use external calibration.
To Use Fast 2-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 dened by the user:
Hold: 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 4MEAS5 key
or changing to a dierent S-parameter measurement will cause the test set to switch and
cycle between the ports.
Continuous: 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.
Number 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-dened number of sweeps. After
the specied 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. To access the test set switch functions, press:
4CAL5
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MORE TEST SET SW
2. To activate the hold mode, press:
405 4x15
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
The analyzer will then display TEST SET SW HOLD .
3. To activate the continuous mode, press:
415 4x15
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
The analyzer will then display TEST SET SW CONTINUOUS .
5-54 Optimizing Measurement Results