VNA GUI Reference
R&S
®
ZNL/ZNLE
300
User Manual 1178.5966.02 ─ 07
9.4.2
Bandwidth Tab
Sets the measurement bandwidth and the shape of the digital IF filter (R&S
ZNL only)
for the active channel.
A system error correction (calibration) remains valid when the filter settings are
changed.
Segmented sweeps
In segmented frequency sweeps, the filter settings can be selected independently for
each segment. see
Chapter 9.5.2.2, "Define Segments Dialog"
left = R&S
ZNL
right = R&S
ZNLE
Bandwidth
"Bandwidth" the measurement bandwidth of the IF filter. Within the value range, the
entered value is rounded up to 1 · 10
n
Hz, 1.5 · 10
n
Hz, 2 · 10
n
Hz, 3 · 10
n
Hz, 5 · 10
n
Hz, 7 · 10
n
Hz (n
≥
0). Values exceeding the maximum bandwidth are rounded down.
The bandwidth range is 1
Hz to 500
kHz.
Remote command:
[SENSe<Ch>:]BANDwidth[:RESolution]
[SENSe<Ch>:]BWIDth[:RESolution]
Selectivity
Selects the shape of the IF filter:
●
Filters with "Normal" selectivity provide the shortest settling time (recommended for
fast measurements).
●
"Medium" selectivity filters have steeper edges but require longer settling times.
●
"High" selectivity filters have the steepest edges and the longest settling times.
This filter type is suitable for isolating adjacent signals which are separated by a
small frequency spacing.
Note:
For the R&S
ZNLE always "Normal" selectivity filters are used and hence this
setting is hidden.
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Allice Messtechnik GmbH
