R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Remote Control – Description of Commands
GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E
6.23.7 Model-Dependent Default Settings
If the GPIB language is switched over to an 85xx model, the GPIB address will automatically be switched
over to 18 provided that the default address of the R&S FSQ (20) is still set. If a different value is set, this
value will be maintained. Upon return to SCPI, this address will remain unchanged.
The following table shows the default settings obtained after a change of the GPIB language and for the
commands IP, KST and RESET:
Model # of Trace Points Start Freq. Stop Freq. Ref Level Input Coupling
8566A/B 1001 2 GHz 22 GHz 0 dBm DC
8568A/B 1001 0 Hz 1.5 GHz 0 dBm AC
8560E 601 0 Hz 2.9 GHz 0 dBm AC
8561E 601 0 Hz 6.5 GHz 0 dBm AC
8562E 601 0 Hz 13.2 GHz 0 dBm AC
8563E 601 0 Hz 26.5 GHz 0 dBm AC
8564E 601 0 Hz 40 GHz 0 dBm AC
8565E 601 0 Hz 50 GHz 0 dBm AC
8594E 401 0 Hz 3 GHz 0 dBm AC
Notes regarding the set stop frequency:
• The stop frequency given in the table may be limited to the corresponding
frequency range of the R&S FSUP.
• Command LF sets the stop frequency for 8566A/B to a maximum value of 2
GHz.
Note regarding the number of test points (trace points):
• The number of trace points is switched over only upon transition to the REMOTE
state.
6.23.8 Data Output Formats
In the case of the SCPI and IEEE488.2 standards, the output formats for numerical data are flexible to a
large extent. The output format for the HP units, by contrast, is accurately defined with respect to the
number of digits. The memory areas for reading instrument data have therefore been adapted accordingly
in the remote-control programs for instruments of this series.
Therefore, in response to a query, the R&S FSQ returns data of the same structure as that used by the
original instruments; this applies in particular to the number of characters returned.
Two formats are currently supported when trace data is output: Display Units (command O1) and physical
values (command O2, O3 or TDF P). As to the "Display Units" format, the level data of the R&S FSQ
is converted to match the value range and the resolution of the 8566/8568 series. Upon transition to the
Operating Manual 1313.9681.12 - 01 6.281