
FM Stereo Option R&S
FSV–K7S
R&S
®
FSV-K7/K7S
201
Operating Manual 1176.7561.02 ─ 06
25 µs:
25 kHz ≤ demodulation bandwidth ≤ 40 MHz
50 µs:
6.4 kHz ≤ demodulation bandwidth ≤ 18 MHz
75 µs:
6.4 kHz ≤ demodulation bandwidth ≤ 18 MHz
750 µs:
800 Hz ≤ demodulation bandwidth ≤ 3 MHz
The following table shows the required demodulation bandwidth for an error less than
0.5 dB up to a maximum AF frequency.
deemphasis
25 µs
50 µs
75 µs
750 µs
max. AF frequency
25 kHz
12 kHz
8 kHz
800 Hz
required demodulation bandwidth
≥ 200 kHz
≥ 100 kHz
≥ 50 kHz
≥ 6.4 kHz
For higher AF frequencies the demodulation bandwidth must be increased.
Remote command:
[SENSe:]FILTer<n>:DEMPhasis[:STATe]
[SENSe:]FILTer<n>:DEMPhasis:TCONstant
SFM:
[SENSe:]SFM:<ChannelType>:FILTer:DEMPhasis:STATe
[SENSe:]SFM:<ChannelType>:FILTer:DEMPhasis:TCONstant
Coupled ← AF Filter ← Left
All channels for which this option is enabled are configured identically, i.e. the channel
settings are coupled. If you change the settings for one coupled channel, the settings
are changed for all other coupled channels, as well. The settings are taken from the
first channel for which coupling is enabled.
Remote command:
[SENSe:]SFM:<ChannelType>:RSUMmary:COUPling
All AF Filter Off ← AF Filter ← Left
Disables all specified AF Filters.
Remote command:
AF Range ← Left
Opens a submenu to define the diagram scaling for AF displays.
Dev per Division ← AF Range ← Left
Opens an edit dialog box to set the modulation depth or the phase deviation (Analog
Demodulation only), or frequency deviation per division:
AM display:
0.0001 % to 1000 %
FM display:
1 Hz/div to 100 MHz/div
PM display:
0.0001 rad/div to 1000 rad/div
The softkey is not available if logarithmic display is set ( "Deviation Lin/Log" softkey).
Instrument Functions FM Stereo (R&S
FSV–K7S)