To Reduce The Amount Of Averaging; To Reduce The Number Of Measurement Points - HP 8712ES User Manual

To Reduce the Amount of Averaging

If averaging has been turned on (it is off in the factory preset condition),
reducing the averaging factor (or turning it off altogether) will increase
the analyzer's measurement speed. Averaging requires multiple sweeps
which increases measurement time. Turning off averaging and using a
narrower system bandwidth may produce faster results.
1. Press Average Factor
AVG
less than the value displayed on the analyzer screen and press
.
ENTER
2. If you want to turn the averaging off, press
Average on OFF

To Reduce the Number of Measurement Points

To reduce the number of measurement points, press
Number of Points
keys, or the numeric keypad to enter the reduced number.
Generally, as the number of points is decreased, so is the sweep time.
However, other factors will affect the sweep time such as:
• using frequency bands that contain very low frequencies (below
approximately 20 MHz)
• the number of band crossing points encountered in a sweep (at
approximately 1900 MHz, 2310 MHz, and 2620 MHz) (HP 8714ES
only)
• if the MHz/msec rate is above the maximum rate at which the source
can be swept
The following graph shows an example of the relationship between the
number of points, frequency span, and total cycle time. Total cycle time is
defined as the time from the start of the sweep to the start of the next
sweep. This graph was created with data from a setup on an HP 8714ES
using Factory Preset
PRESET
points and sweep frequencies, as noted on the graph.
ES User's Guide
and enter an averaging factor that is
.
and use the front panel knob, the
conditions, except for number of
Optimizing Measurements
Increasing Sweep Speed
AVG
MENU
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