RF Frequency SME
1038.6002.02 2.42 E-13
KNOB STEP
DECIMAL: Variation step width corresponding to the position of the digit
cursor.
USER: "User Defined", variation step width as entered under KNOB
STEP USER .
EXCLUDE FROM RCL
OFF The saved frequency is loaded as well when instrument settings
are loaded with the [RCL] key or with a memory sequence.
IEC-bus command SOUR:FREQ:RCL INCL
ON The RF frequency is not loaded when instrument settings are
loaded, the current frequency settings are maintained.
IEC-bus command SOUR:FREQ:RCL EXCL
2.4.1 Frequency Offset
The SME offers the possibility of entering an offset (OFFSET) of possibly series-connected instruments
in the FREQUENCY menu. The indication/input value of FREQ in the header field considers this input
and represents the frequency value of the RF signal at the output of these instruments (cf. Fig. 2-17).
The entry values FREQUENCY and OFFSET in the menu FREQUENCY or FREQ in the header line are
related to the RF output frequency as follows :
FREQ - OFFSET = output frequency (= FREQUENCY).
An offset entry causes no modification of the RF output frequency but only a modification of the display
value in the FREQ field in the header line, ie FREQ in the header line indicates the offset-associated
frequency and FREQUENCY in the menu FREQUENCY the RF output frequency. The status line
indicates FREQ-OFFST.
The offset setting also remains effective with the frequency sweep.
×
Ø
SME
Input value
OFFSET
(FREQUENCY menu)
L.O.
RF output frequency
(FREQUENCY in the FREQUENCY menu)
Mixer
FREQ in the header field
Fig. 2-17 Example of a circuit with frequency offset
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