Configuration
R&S
®
FSW-K7
69
User Manual 1173.9240.02 ─ 23
"I Only / Low IF I"
The input signal at the BASEBAND INPUT I connector is filtered and
resampled to the sample rate of the application.
If the center frequency is set to 0
Hz, the real baseband signal is dis-
played without down-conversion (
Real Baseband I
).
If a center frequency greater than 0
Hz is set, the input signal is
down-converted with the center frequency (
Low IF I
).
"Q Only / Low IF Q"
The input signal at the BASEBAND INPUT Q connector is filtered and
resampled to the sample rate of the application.
If the center frequency is set to 0
Hz, the real baseband signal is dis-
played without down-conversion (
Real Baseband Q
).
If a center frequency greater than 0
Hz is set, the input signal is
down-converted with the center frequency (
Low IF Q
).
Remote command:
Input Configuration
Defines whether the input is provided as a differential signal via all four Analog Base-
band connectors or as a plain I/Q signal via two simple-ended lines.
Note:
Both single-ended and differential probes are supported as input; however, since
only one connector is occupied by a probe, the "Single-ended" setting must be used for
all probes.
"Single Ended" I, Q data only
"Differential"
I, Q and inverse I,Q data
(Not available for R&S
FSW85)
Remote command:
High Accuracy Timing Trigger - Baseband - RF
Activates a mode with enhanced timing accuracy between analog baseband, RF and
external trigger signals.
Note:
Prerequisites for previous models of R&S
FSW.
For R&S
FSW models with a serial number lower than 103000, special prerequisites
and restrictions apply for high accuracy timing:
●
To obtain this high timing precision, trigger port 1 and port 2 must be connected via
the Cable for High Accuracy Timing (order number 1325.3777.00).
●
As trigger port 1 and port 2 are connected via the cable, only trigger port 3 can be
used to trigger a measurement.
●
Trigger port 2 is configured as output if the high accuracy timing option is active.
Make sure not to activate this option if you use trigger port 2 in your measurement
setup.
●
When you first enable this setting, you are prompted to connect the cable for high
accuracy timing to trigger ports 1 and 2. If you cancel this prompt, the setting
remains disabled. As soon as you confirm this prompt, the cable must be in place -
the firmware does not check the connection. (In remote operation, the setting is
activated without a prompt.)
Input and Frontend Settings
