LMR Master™ S412E Programming Manual : NBFM 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 mode.
To prepare for a new measurement, use the CONFigure command. To make a new measurement, use the INITiate command. To get new measurement data, use the READ or MEASure query commands.
:FETCh:COVerage?
Description
Returns the most recent NBFM Coverage numerical measurement results. Note that this command only functions in the NBFM measurement mode and when the instrument has a valid GPS lock.
Data are returned as eight comma-separated values in the following order and format:
RSSI (dBm as float)
THD (% as float)
SINAD (dB as float)
ExtSINAD (dB as float)
Latitude (radian as float)
Longitude (radian as float)
UTC Date (month/day/year as char)
UTC Time (hour:minute:second as char)
The instrument returns “--” for each value with invalid measurement data.
Cmd Parameters:
NA
Query Parameters:
NA
Range
NA
Default Value
NA
Default Unit
NA
Example
To fetch NBFM Coverage numerical data:
:FETCh:COVerage?
Related Command
:CONFigure:COVerage
Front Panel Access
NA
:FETCh:QUIeting?
Description
Returns the most recent NBFM Quieting numerical measurement results.
Data are returned as two comma-separated values in the following order and format:
Measured Voltage (float) and Reference Voltage (float).
If there is no valid measurement data, the instrument will return “--,--”.
Please note that this command only works when the current measurement is set to NBFM Quieting. Refer to the Related Command below.
Cmd Parameters:
NA
Query Parameters:
NA
Range
NA
Default Value
NA
Default Unit
NA
Example
To fetch NBFM Quieting numerical data:
:FETCh:QUIeting?
Related Command
:CONFigure:QUIeting
Front Panel Access
NA
:FETCh:SIGAnalyzer?
Description
Returns the most recent NBFM Analyzer numerical measurement results. Data are returned as 11 comma-separated values in the following order and format:
Carrier Power (dBm as float, Watts as long long int, or Volts as long long int)
Carrier Frequency or Frequency Error depending on current Summary Freq Disp setting (Hz as float)
Deviation (Hz as float)
Mod Rate (Hz as float)
SINAD (dB as float)
THD (% as float)
Occ BW (Hz as float)
ExtSINAD (dB as float)
CTCSS (string)
DCS (string)
DTMF (string)
The instrument returns “--” for each value with invalid measurement data.
Please note that the received power will be returned in the unit that is selected through the Rx Units button on the front panel or with the command :UNIT:POWer:RX. If the receiver unit has been set to dBm, the received power is returned in dBm. If the unit is set to Watts, the received power is returned in fW (10-15 W). If the unit is set to Volts, the received power is returned in fV (10-15 V).
Also note that only one of the last three numerical values will be shown. The other two values will be dashed out. This is done because only one tone type can be chosen at any given time.
Cmd Parameters:
NA
Query Parameters:
NA
Range
NA
Default Value
NA
Default Unit
NA
Example
To fetch NBFM Analyzer numerical data:
:FETCh:SIGAnalyzer?
Related Command
:CONFigure:SIGAnalyzer
Front Panel Access
NA
:FETCh:SNDRatio?
Description
Returns the most recent NBFM SINAD numerical measurement results.
Data are returned as 1 value in the following order and format:
Measured SINAD (dB as float).
If there is no valid measurement data, the instrument returns “--”
Cmd Parameters:
NA
Query Parameters:
NA
Range
NA
Default Value
NA
Default Unit
NA
Example
To fetch NBFM SINAD numerical data:
:FETCh:SNDRatio?
Front Panel Access
NA