Anritsu ML2430A operation manual Sensor Menu, Calfactor

SENSOR MENU OPERATION

NOTE

The HOLD selection is not available when System/Setup/mode is set to Source Sweep. In this mode, AUTO ranging is used.

HOLD [RGH]

Allows the operating range of the selected sensor to be set to the desired range. Select a Range Hold value of 1 to 5, or Auto. When in Auto, the range changes to take the best measurement automati- cally. Auto is the default setting following system preset.

Typical Range Hold values for diode sensors are:

Range 1	above approximately –12 dBm
Range 2	–10 to –27 dBm
Range 3	–25 to –42 dBm
Range 4	–40 to –57 dBm
Range 5	below –55 dBm

NOTE

SETTLE% affects GPIB speed. Consider this when optimizing GPIB performance.

Calfactor

SETTLE % Settle % per reading is available when the sensor mode is set to

[SENSTL] Default. The settling time allows some control over the tradeoff be- tween speed and the extent to which a measurement has settled to its final value. A 1% settling value relates to approximately 0.04 dB, 0.5% relates to 0.02 dB and 0.25% to 0.01 dB. The default value af- ter a system preset is 0.1%, or about 0.004 dB. Increasing the Set- tle percent to 1% or more will substantially increase measurement speed.

Allows entry of the calibration correction factor. The calibration factor compen- sates for mismatch losses and effective efficiency over the frequency range of the power sensor.

SENSOR Model ML2438A (dual channel) only. Select the sensor to be con- figured. Toggles between Sensor A and Sensor B for all submenu functions.

SOURCE Three selections are available, Frequency, Manual, and V/GHz.

[CFSRC

CFVAL]

Frequency

NOTE

Frequency or V/GHz are pre- ferred methods as the sen- sors have internal linearity correction which varies with frequency.

In this mode, correction data is read from the EEPROM in the sen- sor and applied automatically to the measurement based on the us- er’s input frequency. The EEPROM correction data value nearest to the entered frequency is used to calculate the correction applied to the signal.

4-6 ML2430A OM