Test Procedures R&S SMU200A
1007.9845.82 1.38
E-12
Carrier Frequency Offset with FM
Test assembly
See section "
Standard Test Assembly for Analog Modulations",
page 1.3.
Measurement Settings on DUT:
RF
On
Level 0 dBm
Frequency 1 GHz
Frequency Modulation menu:
LF Gen Frequency 1 MHz
Source Internal
FM deviation 1 MHz.
Settings on R&S FSQ
AMPT / REF LEVEL 0 dBm
FREQ / CENTER 1 GHz
SPAN 10 kHz
MKR / SIGNAL COUNT / NEXT / CNT RESOL 10 Hz
Execute a single sweep. Using MKR Z / PEAK, read counted marker
frequency
.
T
he offset is the difference between marker frequency and set
carrier frequency.
Repeat measurement with FM source external, impedance 50 Ohm
and high Z, coupling ac and dc (4 measurements).
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