R&S FSV-K8, Руководство по эксплуатации

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Instrument Functions for Bluetooth Measurements (K8)
R&S
®
FSV-K8
52 Operating Manual 1176.7610.02 ─ 02
This function is not available for input from the R&S Digital I/Q Interface (option
R&S
FSV-B17).
Remote command:
INPut:
​
GAIN:
​
STATe
​
on page 111
RF Atten Manual/Mech Att Manual
Opens an edit dialog box to enter the attenuation, irrespective of the reference level. If
electronic attenuation is activated (option R&S
FSV-B25 only; "El Atten Mode Auto"
softkey), this setting defines the mechanical attenuation.
The mechanical attenuation can be set in 10 dB steps.
The RF attenuation can be set in 5 dB steps (with option R&S FSV-B25: 1 dB steps).
The range is specified in the data sheet. If the current reference level cannot be set for
the set RF attenuation, the reference level is adjusted accordingly.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S
FSV-B17).
The RF attenuation defines the level at the input mixer according to the formula:
level
mixer
= level
input
– RF attenuation
Note: As of firmware version 1.61, the maximum mixer level allowed is 0 dBm . Mixer
levels above this value may lead to incorrect measurement results, which are indicated
by the "OVLD" status display. The increased mixer level allows for an improved signal,
but also increases the risk of overloading the instrument!
Remote command:
INPut:
​
ATTenuation
​
on page 110
RF Atten Auto/Mech Att Auto
Sets the RF attenuation automatically as a function of the selected reference level.
This ensures that the optimum RF attenuation is always used. It is the default setting.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S
FSV-B17).
Remote command:
INPut:
​
ATTenuation:
​
AUTO
​
on page 111
Ref Level Offset
Opens an edit dialog box to enter the arithmetic level offset. This offset is added to the
measured level irrespective of the selected unit. The scaling of the y-axis is changed
accordingly. The setting range is ±200 dB in 0.1 dB steps.
Remote command:
DISPlay[:
​
WINDow<n>]:
​
TRACe<t>:
​
Y[:
​
SCALe]:
​
RLEVel:
​
OFFSet
​
on page 107
Ref Level Position
Opens an edit dialog box to enter the reference level position, i.e. the position of the
maximum AD converter value on the level axis. The setting range is from -200 to
+200
%, 0 % corresponding to the lower and 100 % to the upper limit of the diagram.
Softkeys of the Amplitude Menu (Bluetooth Mode)