S331E, S332E, S361E, S362E Site Master™MS2711E, MS2712E, MS2713E Spectrum Master™MT8212E, MT8213E Cell Master™ Programming Manual : Mobile WiMAX Commands : :FETCh Subsystem
 
:FETCh Subsystem
This set of commands returns the most recent measurement data of the active measurement. They will not switch to another measurement.
To make a new measurement, use the INITiate command. To get new measurement data, use the READ or MEASure query commands.
:FETCh:DEMod:CONStln?
Title
Fetch Constellation
Description
Returns the constellation of the demodulated data symbol over one frame measurement results.
Data is returned as 8 comma-delimited values: EVM (rms) in %, EVM (pk) in %, RCE (rms) in dB, RCE (pk) in dB, Carrier Frequency in MHz, Freq Error in MHz, Freq Error in ppm, and the Base Station ID. “--” is returned for each data that is not valid at that instance.
:FETCh:DEMod:EVSCarrier?
Title
Fetch EVM vs. Sub Carrier
Description
Returns the EVM vs. Sub Carrier measurement results.
Data is returned as 8 comma-delimited values: EVM (rms) in %, EVM (pk) in %, RCE (rms) in dB, RCE (pk) in dB, Carrier Frequency in MHz, Freq Error in MHz, Freq Error in ppm, and the Base Station ID. “--” is returned for each data that is not valid at that instance.
:FETCh:DEMod:EVSYmbol?
Title
Fetch EVM vs. Symbol
Description
Returns the EVM vs. Symbol measurement results.
Data is returned as 8 comma-delimited values: EVM (rms) in %, EVM (pk) in %, RCE (rms) in dB, RCE (pk) in dB, Carrier Frequency in MHz, Freq Error in MHz, Freq Error in ppm, and the Base Station ID. “--” is returned for each data that is not valid at that instance.
:FETCh:DEMod:SFLatness?
Title
Fetch Spectral Flatness
Description
Returns the absolute delta of the power between adjacent sub carriers in dB. “--” is returned for data that is not valid at that instance.
:FETCh:PFail?
Title
Fetch PASS/FAIL
Description
Returns the most recent PASS/FAIL measurement results. Measurement results are returned in a block of ASCII text in the format of <header><block>. The ASCII header specifies the number of data bytes. It looks like #AX, where A is the number of digits in X and X is the number of bytes in the <block>. The block consists of a set of records which indicate individual test results. Records are comma-separated. Each record follows the format <test ID>: <input1> <input2> <min> <max> <value1> <value2> <PASS/FAIL/OPTION NOT INSTALLED>.
The <test ID> field indicates which test was performed to retrieve these results. The < input1> and < input2> fields indicate the test setup. The <min> and <max> fields indicate the minimum and maximum values against which <value1> and <value2> were compared to arrive at the final PASS/FAIL result. If the specified test is not available in the instrument, the <PASS/FAIL> field will indicate “option not available” instead of “pass” or “fail”. All unused fields for a given test are represented by a double dash (“--”). To receive valid measurements, the Pass/Fail measurement must be the active. The current measurement can be queried using CONFigure?. Use the :CONFigure PFail command to set Pass/Fail as the active measurement.
Related Command
MEASure:PFail?
:CONFigure PFail
READ:PFail?
:FETCh:RF:ACPR?
Title
Fetch Adjacent Channel Power Ratio
Description
Returns the most recent adjacent channel power ratio measurement results.
Data is returned as 11 comma-delimited values: The Channel Power in dBm, relative adjacent channel 1 power level, absolute adjacent channel 1 power level, relative adjacent channel 2 power level, absolute adjacent channel 2 power level, relative adjacent channel 3 power level, absolute adjacent channel 3 power level, relative adjacent channel 4 power level, absolute adjacent channel 4 power level, relative adjacent channel 5 power level, absolute adjacent channel 5 power level. The relative adjacent channel power level is in dB and the absolute adjacent channel power level is in dBm. “--” is returned for each data that is not valid at that instance.
Related Command
:CONFigure:RF ACPR
:MEASure:RF:ACPR?
:READ:RF:ACPR?
Front Panel Access
Measurements, RF Measurements, ACPR
:FETCh:RF:PVTime?
Title
Fetch Power vs. Time
Description
Returns the most recent WiMAX 802.16-2004 OFDM signal over approximately one frame time domain measurement results.
Data is returned as 4 comma-delimited values: The Channel Power in dBm, Preamble power in dBm, downlink burst power of data bursts in dBm, and uplink burst power of data bursts in dBm. “--” is returned for each data that is not valid at that instance.
 
:FETCh:RF:SPECtrum?
Title
Fetch RF Spectrum
Description
Returns the most recent RF Spectrum measurement results.
Data is returned as 2 comma-delimited values: Channel Power(RSSI) in dBm and Occupied bandwidth measurement in MHz. “--” is returned for each data that is not valid at that instance.
Related Command
:CONFigure:RF SPECtrum
:MEASure:RF:SPECtrum?
:READ:RF:SPECtrum?