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R&S FSP
Performance Test
116
4
.4556.82 1.9 E-1
Checking Bandwidth
Signal generator settings:
- Frequency:
128 MHz
- Level: -10
dBm
R&S FSP settings:
- [
PRESET
]
- [
AMPT
: RF ATTEN MANUAL :
10 dB
]
- [
AMPT
:
0 dBm
]
- [
FREQ
: CENTER :
128 MHz
]
- [
BW
: COUPLING RATIO : SPAN/RBW MANUAL :
3
:
ENTER
]
Determine 3 dB bandwidth:
- [
MKR FCTN
: N DB DOWN :
3 dB
]
- [
SPAN
: {3 x RBW} ]
Refer to "Performance Test Report" table for values of RBW.
Note:
To check the 10 MHz filter, the resolution bandwidth has to be set
manually to 10 MHz. All other bandwidths will be set automatically by
changing the span.
-
[
BW
: RES BW MANUAL :
10 MHz
]
Measurement:
- [
MKR
: PEAK ]
The 3 dB bandwidth is displayed by the reading ´BW {bandwidth}´.
Checking Shape Factor
Note:
To check the shape factor, you need to know the values of the 3 dB bandwidth . Please check
these values before performing this measurement.
Signal generator settings:
- Frequency:
128 MHz
- Level: 0
dBm
R&S FSP settings:
- [
PRESET
]
- [
AMPT
: RF ATTEN MANUAL :
10 dB
]
- [
AMPT
:
0 dBm
]
- [
FREQ
: CENTER :
128 MHz
]
- [
BW
: COUPLING RATIO : SPAN/RBW MANUAL :
20 ENTER
]
- [
BW
: COUPLING RATIO : RBW/VBW NOISE [10] ]
- [
MKR FCTN
: N DB DOWN :
60 dB
]
- [
SPAN
: {20 x RBW} ]
Refer to "Performance Test Report" table for values of RBW.
Note:
To check the 10 MHz filter, the resolution bandwidth has to be set
manually to 10 MHz. All other bandwidths will be set automatically by
changing the span.
-
[
BW
: RES BW MANUAL :
10 MHz
]
Measurement:
- [
MKR
: PEAK ]
The 60 dB bandwidth is displayed by the reading ´BW {bandwidth}´.
Evaluation:
The shape factor is calculated by BW (60 dB) / BW (3 dB).
Содержание 1164.4391.03
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