Anritsu MS2840A - Page 1238

Chapter
４
Native Device Message Details
4-156
sg_output
Output level of SG Output of this equipment
No suffix code, dBm (unit),
0.01 dB (resolution)
–999.0 is returned if there is no measurement.
count_res
Power adjustment execution count
time
Power adjustment time
1 ms (resolution)
No suffix code, ms (unit)
–999.0 is returned if there is no measurement.
sa_input_log_n
DUT output level at power adjustment
Added to response when Log Output on
No suffix code, dBm (unit),
0.01 dB Resolution
sg_output_log_n
Output level from SG Output at each power
adjustment
Added to response when Log Output on
No suffix code, dBm (unit),
0.01 dB Resolution
count_log_n
Power adjustment count
Added to response when Log Output on
Details
This function cannot be performed when the SG option is not installed.
SG setting and measurement are executed repeatedly until the target
level specified at target, range is reached within the count specified at
count. This is used for various measurements such as a spurious
measurement with specified output level.
In this application, the Reference Level and Attenuator settings are
calculated as follows from the Adjustment Target Level, Crest Factor,
and Correction value and are set automatically at the measurement
section. Using this application, the Attenuator is set so that the Mixer
Input Level become 0 dBm.
Reference Level setting value
Correction -Factor Crest target Level Reference +><=
* Crest Factor = 12 dB
However, it is rounded to 50 dBm when Reference Level > 50 dBm (30
dBm at Pre-amp On) and to –120 dBm when Reference Level < –120
dBm
Attenuator setting values
Offset-Gain Amp-
Pre
LevelInput Mixer - Level Reference +=
Attenuator
* Mixer Input Level = 0
* Pre-Amp Gain = 20 dB (only at Pre-Amp On)