Rohde & Schwarz FSW-K40, Руководство пользователя

Страница: 39 / 166

Configuration
R&S
®
FSW-K40
39 User Manual 1173.9286.02 ─ 15
Nominal Frequency ....................................................................................................... 39
Nominal Level ............................................................................................................... 39
Mechanical Attenuator / Value ...................................................................................... 39
Coupling ........................................................................................................................ 39
Preamplifier .................................................................................................................. 39
Nominal Frequency
Defines the nominal frequency of the measurement.
For more information see Chapter 4.6, "Frequency Determination" , on page 27.
Remote command:
[SENSe:]FREQuency:CENTer
on page 92
Nominal Level
Defines the nominal level of the R&S FSW.
For more informaation see . Chapter 4.7, "Level Determination" , on page 30
Remote command:
[SENSe:]POWer:RLEVel
on page 93
Mechanical Attenuator / Value
Turns mechanical attenuation on and off.
If on, you can define an attenuation level in 5 dB steps.
For more information see Chapter 4.8, "Signal Attenuation" , on page 30.
Remote command:
Turning manual attenuation on and off:
INPut:ATTenuation:AUTO
on page 93
Defining an attenuation level:
INPut:ATTenuation
on page 93
Coupling
Selects the coupling method at the RF input.
AC coupling blocks any DC voltage from the input signal. DC coupling lets DC voltage
through.
For more information refer to the data sheet.
Remote command:
INPut:COUPling
on page 94
Preamplifier
If the (optional) Preamplifier hardware is installed, a preamplifier can be activated for
the RF input signal.
You can use a preamplifier to analyze signals from DUTs with low output power.
For R&S FSW26 or higher models, the input signal is amplified by 30 dB if the pream-
plifier is activated.
For R&S FSW8 or 13 models, the following settings are available:
"Off" Deactivates the preamplifier.
"15 dB" The RF input signal is amplified by about 15 dB.
Configuring the Frontend