R&S FSV-K7 Operating Manual page 210

®
R&S FSV-K7/K7S
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
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
El Atten On/Off
This softkey switches the electronic attenuator on or off. This softkey is only available
with option R&S FSV-B25.
When the electronic attenuator is activated, the mechanical and electronic attenuation
can be defined separately. Note however, that both parts must be defined in the same
mode, i.e. either both manually, or both automatically.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
●
To define the mechanical attenuation, use the
or
●
To define the electronic attenuation, use the
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, this function is available again.
When the electronic attenuator is switched off, the corresponding RF attenuation mode
(auto/manual) is automatically activated.
Remote command:
INPut:EATT:AUTO
El Atten Mode (Auto/Man)
This softkey defines whether the electronic attenuator value is to be set automatically
or manually. If manual mode is selected, an edit dialog box is opened to enter the
value. This softkey is only available with option R&S FSV-B25, and only if the elec-
tronic attenuator has been activated via the
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, electronic attenuation is available
again. If the electronic attenuation was defined manually, it must be re-defined.
The attenuation can be varied in 1 dB steps from 0 to 30 dB. Other entries are rounded
to the next lower integer value.
Operating Manual 1176.7561.02 ─ 06
on page 177
RF Atten Auto/Mech Att Auto
on page 181
FM Stereo Option R&S FSV–K7S
Instrument Functions FM Stereo (R&S FSV–K7S)
on page 177
RF Atten Manual/Mech Att Manual
softkeys.
El Atten Mode (Auto/Man)
El Atten On/Off
softkey.
softkey.
210