Rohde & Schwarz SML01 - Internal;External Reference Frequency (Refosc)

R&S®SML / R&S®SMV03 Utilities
1090.3123.12 E-6 4.59
Internal/External Reference Frequency (RefOsc)
In the internal-reference mode, the internal reference signal with a frequency of 10 MHz is available at
the 10 MHz REF socket on the rear of the instrument.
Signal level: V
rms
(sine) > 0.5 V at 50 L.
In the external-reference mode, an external signal with a frequency of 10 MHz to 50 Hz is to be fed to
the 10 MHz socket . The external-reference mode can be selected in the Utilities – RefOsc menu.
Signal level: V
rms
= 0.5 V to 2 V
Settings for the reference frequency can be made in the RefOsc menu.
Menu selection: Utilities – RefOsc
Fig. 4-28 Utilities – RefOsc menu (preset setting)
Source
Selection of operating mode.
Int Internal-reference mode
Ext External-reference mode
IEC/IEEE bus command :SOUR:ROSC:SOUR INT
Adjustment State
Off Tuning value of internal reference frequency as
calibrated (see Utilities – Calib menu).
On Tuning value corresponding to value set under
Frequency Adjustment. If option R&S SML-B1
(Reference Oscillator OCXO) is installed, it is affected
by these settings.
IEC/IEEE-bus command :SOUR:ROSC:ADJ:STAT ON
Frequency Adjustment
Input value in the range 0 to 4095 for setting the internal reference
frequency.
IEC/IEEE bus command :SOUR:ROSC:ADJ:VAL 2047
Calibration Data
Display of the calibration value entered in the Utilities – Calib –
RefOsc menu.
IEC/IEEE bus command :CAL:ROSC?