R&S®SML / R&S®SMV03 Test sequence
1090.3123.12 10.13 E-6
Level
Level flatness and level accuracy
Measuring equipment - Test receiver (table "Measuring Equipment and Accessories", item 1)
- Power sensor (table "Measuring Equipment and Accessories", item 7)
- Low-noise preamplifier (table "Measuring Equipment and
Accessories", item 8)
Measurement method for levels in the measurement range of the power sensor (-25 dBm to
+23 dBm)
Test setup Test setup 1; connect a power sensor to the RF output connector.
Settings on the R&S
SML01
- FREQ:
100 kHz, 500 kHz, 1 MHz, 2 MHz, 3 MHz, 4 MHz, 5 MHz, 5 MHz + 1 Hz,
15 MHz, 25 MHz,
every 10 MHz to 1100 MHz
- LEVEL:
13 dBm, 0 dBm
with R&S SML-B10 also 23 dBm
Settings on the R&S
SML02/03 / R&S SMV03
- FREQ:
to 1100 MHz as R&S SML01
from 1105 MHz every 20 MHz to 2200 MHz or 3300 MHz
- LEVEL:
13 dBm, 0 dBm
with R&S SML-B10 also +21 dBm
Settings on the test receiver - P
ower meter mode
Z
EROING is carried out before level measurements. Use RF OFF when
turning off the level on the R&S SML / R&S SMV03.
Measurement Measure the level at the test frequencies.
The frequency response is the difference between the highest and
the lowest measured value.
The level error is the deviation from the set value.
Measurement method for small levels (-80 dBm to -25 dBm)
Caution: A prerequisite for correct measurement is full RF shielding of the components used.
Measurement principle A line measurement in RF level mode is carried out at an output level
from the R&S SML / R&S SMV03 of – 25 dBm, and measurements are
then carried out this mode down to – 80 dBm.
Test setup Test setup 1
Settings on the R&S
SML01
- FREQ:
Frequency that shows the largest deviation at 0 dBm
120 kHz, 50 MHz, 1100 MHz
- LEVEL:
6 dBm, 5 dB steps as far as – 80 dBm
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