Reducing Recall Time - Agilent Technologies 8719D User Manual

Reducing Recall Time

To reduce time during recall, turn off the raw offset function by pressing:
The raw offset function is normally on and controls the sampler and attenuator offsets. The
creation of the sampler offset table takes considerable time during a recall of an instrument
state. 'RI save time at recalls, this function should be turned off.
Raw offsets may be turned on or off individually for each channel. They follow the channel
coupling. Therefore, for dual channel operation, raw offsets should be turned off for each
channel.
The following table lists the recall state times with the raw offsets function on or off.
operations
sweep
Dual Chan.
Sweep only
Dual Chan.
Sweep only
(no F&call)
sweep
Instrument State: CF- lGHz, Span- 2MHz, Error Correction OFF.
HP-IB co mmands sent for timing are:
Sampler This smoothes the raw frequency response of the receiver hardware. Sampler
correction: correction is not required if a calibration measurement is to be done. E3e sure
to turn off sampler correction before performing the calibration.
Attenuator These offsets compensate for the effects of the step attenuator in the source
offsets: path. For example, with the offsets ON, you can change the attenuator while
viewing a ratioed parameter (such as S21) and the trace will stay on the
screen. With offsets OFF, it will move with each attenuator step. Attenuator
offsets are turned off primarily for special use of pre-raw data.
on
1601
Off
1601
201 on
201 Off
201 n/a
1601 on
1601 Off
I ReCaJlTime l
3.9 3.18
2.0 1.298
0.7
no recall
0.96
0.74
0.22 no recall
2.2 1.424
1.3