R&S ESR Series, Руководство пользователя

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Receiver Mode
R&S
®
ESR
184 User Manual 1175.7068.02 ─ 12
Input 50 Ω/75 Ω
Uses 50 Ω or 75 Ω as reference impedance for the measured levels. Default setting is
50 Ω.
The setting 75 Ω should be selected if the 50 Ω input impedance is transformed to a
higher impedance using a 75 Ω adapter of the RAZ type (= 25 Ω in series to the input
impedance of the instrument). The correction value in this case is 1.76 dB = 10 log (75
Ω/50 Ω).
All levels specified in this Operating Manual refer to the default setting of the instru-
ment (50 Ω).
Remote command:
INPut:IMPedance
on page 670
5.3.3 Selecting the Bandwidth
The bandwith settings are available in the [BW] menu.
Res BW Manual .......................................................................................................... 184
CISPR RBW Uncoupled ..............................................................................................184
Filter Type ................................................................................................................... 184
IF Analysis RBW ......................................................................................................... 185
Res BW Manual
Opens an input field to define the measurement or resolution bandwidth.
The R&S ESR supports a selected set of resolution bandwidths. If you enter a number
that is not supported, the R&S ESR rounds the value up to next available bandwidth.
You can also select some bandwidths directly with the corresponding softkeys in the
"Bandwidth" menu.
For more information see Chapter 5.2.1, "Measurement Bandwidth" , on page 166.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]
on page 670
CISPR RBW Uncoupled
Cancels the coupling of the IF bandwidth to the frequency range with the activated
quasipeak detector, CISPR Average or RMS average detector.
See also Chapter 5.2.2, "Detectors" , on page 167.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:AUTO
on page 671
Filter Type
Selects the filter type.
The available resolution bandwidths depend on the filter selection.
The R&S ESR provides the following filter types:
●
EMI CISPR / MIL
Gaussian filter with a 6 bandwidth. 6 dB bandwidths that comply with CISPR and
MIL standards are available.
Common Measurement Settings