BW Key - Receiver R&S ESCI
1166.6004.12 4.12 E-2
Setting the IF Bandwidth - BW Key
R&S ESCI offers the IF bandwidths (3 dB bandwidths) from 10 Hz to 10 MHz available in steps of
1/3/10 and the IF bandwidths (6 dB bandwidths) 200 Hz, 9 kHz, 120 kHz and 1 MHz.
The resolution bandwidths up to 120 kHz are implemented by digital Gaussian bandpass filters. As far
as attenuation characteristic is concerned, they behave like analog filters, but they have a much higher
measurement speed than comparable analog filters. This is due to the fact that the transient response
can be compensated because the filters have an accurately defined behavior.
Bandwidths of 300 kHz and higher are implemented by decoupled LC filters. These filters contain 4 filter
circuits.
BW menu:
RES BW
QP RBW
UNCOUPLED
BW
200 Hz
9 kHz
120 kHz
1 MHz
FILTER
TYPE
The BW opens the menu for setting the resolution bandwidth.
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