Rohde & Schwarz SMA100B - Reference Frequency Settings

Reference Oscillator
R&S
®
SMA100B
271User Manual 1178.3834.02 ─ 05
●
Variable Reference Frequency = "Variable"
●
External Reference Frequency = current external frequency
●
Reference Output = "Input Signal (loop through)" or specify the reference fre-
quency the synchronized instrument supports
●
Set the synchronization bandwidth according to the requirements of the applica-
tion.
Deriving 10 MHz from the external reference frequency
10 MHz reference frequency can be derived from the following external reference sig-
nals:
●
10 MHz from internal oscillator locked to external input
●
100 MHz and 1 GHz external reference signals
●
External reference signal between 1 MHz and 100 MHz
●
If the external reference signal is interfered (noisy)
Figure 8-3: Synchronizing instruments with 10 MHz (derived from an external reference frequency)
Ref. Frequency Source = e.g., Rohde & Schwarz signal analyzer
f
Ref
= 10 MHz/100 MHz/1 to 100 MHz/1GHz** external reference frequency
** = 1 GHz uses Ref In 1 GHz connector
Ref In, Ref Out = Connectors
1 GHz/1 to 100 MHz at connector Ref In 1 GHz/Ref In and 10 MHz at Ref Out
●
E.g., External Ref. f
ref
= 100 MHz
●
Source = "External"
●
External Reference Frequency = "100 MHz"
●
Reference Output/1GHz Reference Output = "10 MHz"
●
Synchronization Bandwidth = "Narrow"
8.3 Reference Frequency Settings
Access:
1. Select one of the following:
● "Frequency" > "Reference Frequency"
● "System Config" > "Setup" > "General" > "Reference Frequency"
Reference Frequency Settings