LBXXXA Series USB Powe
™
Product Manual PMA (Power Meter Application)
Revision: 08/02/11
- 29 -
Averaging
Averaging
sets the number of data buffers that are averaged. The default state is 75 averages and it takes about 0.25
msec to collect one buffer of data. The number of averages or buffers is settable from the
Measurement
menu shown
below or alternately, by clicking the averaging button on the toolbar and entering a value from 1 to 30000.
Extended Averaging
This averaging should be seen as an adjunct to averaging. Extended averaging is a exponential average of the last n
readings where n is the number of extended averages. This function is reset by the front panel button labeled
Rst Max
& XAvg
. This button resets or restarts both max hold and extended averaging. You can set, reset and enable
extended averaging from the drop down on the toolbar.
(For an example of extended averaging see section 4. Detailed
Operating Instructions, Measurement Overview and Examples, Measurement Example: OFDM Pilot Tone).
Max Hold
Retains the
maximum measured value until reset or deactivated. For pulse measurements, each reading is held at its
maximum value independent of the other readings. This function is reset by the front panel button labeled
Rst Max &
XAvg
. This button resets or restarts both the max hold and extended averaging functions. (For an example of max
hold see section
4. Detailed Operating Instructions, Measurement Overview, Measurement Example: OFDM Pilot
Tone
).
