Anritsu ML2437A - Averaging

Front Panel Operation Sensor Menu
ML2437A/38A OM/PM PN: 10585-00001 Rev. P 5-9
The user must ensure that the maximum number of cal factor data pairs entered into a
table is not exceeded. Sensors with a maximum frequency of up to 40 GHz will hold 90
pairs, while sensors with a maximum frequency of 50 GHz will hold 110 pairs.
Once all changes have been made, the SAVE soft key saves the changed data to the
sensor. If any user cal factor data is changed and not saved, any attempt to exit the cal
factor menu or select a new table will result in a prompt to discard or save the changes.
FACTOR [CFCAL]
When the Cal Factor Source is set to Manual, the operator is expected to enter the
calibration factor value in dB or % terms.
CAL ADJUST [CFADJ]
Sets a calibration factor to be used when performing a 0 dBm calibration and the
calibration factor source is set to 'Manual.' This value is the only factor applied when
performing a 0 dBm reference calibration. If the sensor calibration factor source is set
to V/GHz or Frequency, the sensor internal EEPROM correction value at 50 MHz is
used.
SETUP [CVSTF, CVSPF, CVSTV, CVSPV]
Sets up the Start and Stop frequencies and voltages when Source is set to V/GHz. This
tells the ML243xA how to determine the frequency of the swept signal based on the
applied rear panel voltage.
Averaging
Sensor data averaging. The available soft keys depend upon the operating mode
selected.
In Readout and Power vs. Time modes, the following soft keys appear:
SENSOR
Model ML2438A (dual channel) only. Select sensor A or B, in Power vs. Time or
Readout modes.
MODE [AVG AVGM]
Select OFF, AUTO, MOVING or REPEAT, in Power vs. Time or Readout modes.
AUTOMATIC averaging uses a MOVING type of average and increases the amount of
averaging as the noise level increases. The display updates at approximately 100 ms
intervals, however the data is available at the full rate. The display is slowed down to
prevent jitter and allow the user to follow the update.
MOVING average allows the user to manually select the amount of averaging
regardless of the signal level. The display is continually updated while averaging.
When selected, the following soft key becomes available:
Note
Automatic averaging also applies an algorithm to enhance settling at low power
levels (e.g., signal sources).