![](/images/new-backgrounds/1184153/18415375x1.webp)
SENSOR MENU | OPERATION |
NOTE
GPIB trigger com- mands automatically apply REPEAT averag- ing after TR2 com- mands to ensure ‘old’ samples are excluded from the measurement. However, the user should be aware that due to the high speed of the meter, other in- struments in the ATE system may not be set- tled.
REPEAT averaging also allows the user to manually select the amount of averaging regardless of the signal level, however the dis- play is updated only when the NUMBER of readings specified have been taken
NOTE
| Due to the nature of this method of operation, if the power |
| level changes between updates, the display update will not |
| reflect the true input power for one measurement only. |
| When a channel is set to a ratio, e.g., |
| repeat method described above only operates if all sensors |
| are set to the REPEAT mode. |
LOW | Select OFF, LOW, MEDIUM, or HIGH, Low Level Averaging, in |
LEVEL | Power vs. Time or Readout modes. Sets the low level averaging |
[AVGLL] | window for the sensor. At resolution settings of 0.01 and 0.001 dB, |
| digital readouts may flicker due to the high reading rate of the |
| power meter. Low level averaging applies a low pass filter to post- |
| average data readings to achieve a more stable front panel display |
| without slowing down the response of the meter to larger changes |
| in level. The three windows for LOW, MEDIUM and HIGH low level |
| averaging are ± 0.01, 0.02, and 0.05 dB. |
| For example: When a LOW setting of low level averaging is applied |
| while stepping from 0 dBm to |
| reading within 0.01 dB with no delay. The final settling of 0.01 dB |
| will settle over a short subsequent period of time, leading to a sta- |
| ble high resolution readout. |
| With a HIGH setting of low level averaging, the settling window is |
| increased (up to approximately 0.05 dB) and the settling time is |
| longer. |
| With low level averaging OFF, the meter displays the final reading |
| instantly with no further settling observed. Any jitter due to noise is |
| reflected in the displayed reading, which may be inconvenient for |
| high resolution readings. |
In Profile and Source sweep modes, the following soft keys appear:
STATE | Graph averaging state, ON or OFF. When set to ON, the following |
[GRSWS] | additional soft keys appear: |
| A NUMBER [GRSWP] |
| B NUMBER (ML2438A only) [GRSWP] |
| Sweep averaging number (1 to 512). |
ML2430A OM | |
|
|