Rohde & Schwarz SML01 - Overvoltage Protection; Internal Modulation Generator

Test sequence R&S®SML / R&S®SMV03
1090.3123.12 10.18 E-6
Overvoltage protection
Measuring equipment - Sinewave generator (table "Measuring Equipment and Accessories", item 9)
Test setup  Conn
ect the sinewave generator to the RF output of the R&S SML /
R&S SMV03.
Settings on R&S SML /
R&S SMV03
- FREQ:
100 MHz
- LEVEL:
- 140 dBm
Settings on the sinewave
generator
- FREQ:
20 kHz
- Output impedance = 50 Ohm
- Level = 1 V
- Level offset = ± 5 V
Measurement  Increase the output level of the sinewave generator to a maximum of 10
V (EMF)
 The overvoltage protection must respond to a voltage (offset +
EMF/2) > 3.7 V and < 7.5 V for both polarities.
Internal modulation generator
Note: The setting time refers purely to computer time and therefore does not need to be
measured.
Level accuracy
Measuring equipment - AC voltmeter (table "Measuring Equipment and Accessories", item 10)
Test setup  Conn
ect AC voltmeter to LF connector of R&S SML / R&S SMV03
Settings on R&S SML /
R&S SMV03
- LF OUTPUT STATE ON
- LF OUTPUT LFGen 1 kHz
- LF OUTPUT VOLTAGE:
1 mV, 10 mV, 100 mV, 1 V, 4 V
Measurement  Measure output level
Frequency response
Measuring equipment - AC voltmeter (table "Measuring Equipment and Accessories", item 10)
Test setup  Connect AC voltmeter to LF connector of R&S SML / R&S SMV03.
Settings on R&S SML /
R&S SMV03
- LF OUTPUT STATE ON
- LF OUTPUT VOLTAGE:
1 V, 4 V
- LF OUTPUT LFGen:
10 Hz to 500 kHz, 5 reference values / decade
Measurement  Measure the frequency response
 The frequency response is the difference between the highest and
lowest level.