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Performance Test
R&S FSP
116
4
.4556.82 1.14 E-1
Checking Display Linearity
Test equipment:
- Signal generator (refer to "Measurement Equipment", item 3)
Frequency 128
MHz
Maximum level
10 dBm
- Step attenuator (refer to "Measurement Equipment", item 11)
Frequency
128
MHz
Attenuation
0 to 100 dB in 1 dB steps
Attenuation accuracy
< 0.1 dB
1
)
1
) If a step attenuator with lower accuracy is used, correction
of the measured attenuation is recommended.
Test setup:
Connect RF output of the signal generator to RF input of the
step attenuator.
Connect RF output of the step attenuator to RF input of the R&S
FSP.
Signal generator settings:
- Frequency 128
MHz
- Level +10
dBm
Step attenuator settings:
Attenuation 20
dB
R&S FSP settings:
- [
PRESET
]
- [
AMPT
: RF ATTEN MANUAL :
10 dB
]
- [
AMPT
:
0 dBm
]
- [
FREQ
:CENTER :
128 MHz
]
- [
SPAN
:
0 Hz
]
- [
TRACE
: DETECTOR : RMS ]
1st measurement:
- [
BW
: RES BW MANUAL :
300 Hz
]
2nd measurement:
- [
BW
: RES BW MANUAL :
300 kHz
]
Reference measurement:
Set marker to peak of signal:
- [
MKR
: PEAK ]
Set reference to peak of signal:
- [
MKR
: REFERENCE FIXED ]
Measurement
Step attenuator settings:
Attenuation {a
ATT
}
Refer to "Performance Test Report" table for values of a
ATT.
Evaluation:
The difference between the level of the input signal of the R&S FSP
and the reference (about 10 dB below the reference level) is displayed
in the marker field by the reading ´Delta [T1 FXD]´.
Содержание 1164.4391.03
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