R&S ESCI Receiver –BW Key
1166.6004.12 4.13 E-2
RES BW
The RES BW softkey activates the manual entry mode for the resolution
bandwidth.
For filter type NORMAL (3dB), the bandwidth can be set from 10 Hz to 10 MHz in
steps of 1/3/10. For filter type NORMAL (6dB), the 6-dB bandwidth 200 Hz,
9 kHz, 120 kHz and 1 MHz can be set.
For numerical inputs, the values are always rounded to the next valid bandwidth.
For rollkey or the UP/DOWN key entries, the bandwidth is adjusted in steps
either upwards or downwards.
For the CHANNEL and RRC filter types, the bandwidth is selected from a list of
available channel filters, which is included at the end of this section. The list can
be scrolled with the ↑ and ↓ keys to select a filter (see section "List of Available
Channel Filters").
When the quasi-peak detector is switched on, a fixed bandwidth is preset
depending on the frequency. The coupling of the IF bandwidth to the frequency
range with activated quasi peak detector can be cancelled using the QP RBW
UNCOUPLED softkey (see below).
The bandwidth is limited by the set receive frequency:
RES BW ≤ f
in
/2
IEC/IEEE-bus command BAND 1 MHz
200 Hz
The 200 Hz softkey sets the CISPR bandwidth 200 Hz.
IEC/IEEE-bus command BAND 200 Hz
9 kHz
The 9 kHz softkey sets the CISPR bandwidth 9 kHz.
IEC/IEEE-bus command BAND 9 kHz
120 kHz
The 120 kHz softkey sets the CISPR bandwidth 120 kHz.
IEC/IEEE-bus command BAND 120 kHz
1 MHz
The 1 MHz softkey sets the 6-dB bandwidth 1 MHz.
IEC/IEEE-bus command BAND 1 MHz
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