R&S FSV-K7 Operating Manual page 213

®
R&S FSV-K7/K7S
Remote command:
[SENSe:]FILTer<n>:HPASs[:STATe]
[SENSe:]FILTer<n>:HPASs:FREQuency
Low Pass ← AF Filter
Opens the "Low Pass" selection list to select the filter type. Relative and absolute low
pass filter are available.
●
Absolute low pass filters:
The 3 kHz, 15 kHz; 23 kHz and 150 kHz softkeys switch on a absolute low pass
filter. The filters are indicated by the 3 dB cutoff frequency. The 3 kHz, 15 kHz and
23 kHz filters are designed as 5th-order Butterworth filters (30 dB/octave). The 150
kHz filter is designed as 8th-order Butterworth filter (48 dB/octave).
The absolute low pass filters are active in the following demodulation bandwidth
range:
3 kHz:
15 kHz:
23 kHz
150 kHz:
Note: for FM stereo (K7S), all filters are active at all times, as the demodulation range is always 400 kHz
●
Relative low pass filters:
The filters (3 dB) can be selected in % of the demodulation bandwidth. The filters
are designed as 5th-order Butterworth filter (30 dB/octave) and active for all
demodulation bandwidths.
●
"None" deactivates the AF low pass filter. Default is "None".
Remote command:
[SENSe:]FILTer<n>:LPASs[:STATe]
[SENSe:]FILTer<n>:LPASs:FREQuency[:ABSolute]
[SENSe:]FILTer<n>:LPASs:FREQuency:RELative
SFM:
[SENSe:]SFM:<ChannelType>:FILTer:LPASs:STATe
[SENSe:]SFM:<ChannelType>:FILTer:LPASs:FREQuency
Weighting ← AF Filter
Opens the "Weighting" selection list to select the weighting AF filter.
None ← Weighting ← AF Filter
Deactivates the weighting filter. This is the default setting.
Remote command:
[SENSe:]FILTer<n>:HPASs[:STATe]
CCITT ← Weighting ← AF Filter
Switches on a CCITT P.53 weighting filter. The weighting filter is active in the following
demodulation bandwidth range:
20 kHz ≤ demodulation bandwidth ≤ 3 MHz
Operating Manual 1176.7561.02 ─ 06
Instrument Functions FM Stereo (R&S FSV–K7S)
on page 151
on page 152
6.4 kHz ≤ demodulation bandwidth ≤ 3 MHz
50 kHz ≤ demodulation bandwidth ≤ 8 MHz
50 kHz ≤ demodulation bandwidth ≤ 18 MHz
400 kHz ≤ demodulation bandwidth ≤ 8 MHz
on page 152
on page 151
FM Stereo Option R&S FSV–K7S
on page 152
on page 153
on page 240
on page 241
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