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Fig.18 [REF/PHASE] Submenu-<Internal>
Fig.19 [REF/PHASE] Submenu-<Internal Sweep>
3.2.1 < Ref. phase >: Setting the Reference Phase
Users can set the phase shift between two orthogonal reference signals through the keyboard. The accuracy of
phase is 0.01°and the range is from -180° to +180°.
For phase, it’s meaningful only when there is a reference. In the system, the default reference phase is the phase of
REF IN after locked by a high precision PLL. Other phases are relative to this reference phase.
3.2.2 < Ref. source>: Setting the Reference Source
<External> The external reference signal. <Ref.slope> can be set here.
<Internal>
The internal reference signal. In this mode, the reference signal is from the internal oscillator. The
[REF IN] signal is useless. As is shown in Fig.18, <Ref.frequency> can be set.
