R&S SMB Troubleshooting
1407.0806.82 3.29 E-6
Frequency Error
Error Error correction
Internal reference frequency:
Frequency error greater than limit
given in datasheet
The frequency accuracy of the synthesizer is determined
(
set to internal reference) by a highly stable 200 MHz quartz
oscillator that is set to a calibrated frequency standard at the
R&S factory. This oscillator is subject to ageing and hence
its output frequency can be adjusted (see chapter 2 “Internal
Counter Reference Oscillator Adjustment”).
Note: The internal reference can be impaired under the menu
Setup - Reference Oscillator - Adjustment. This setting
does not affect the factory adjustment and can be reset at
any time by means of deactivation. If the tuning range is
insufficient to reach the frequency error given in the
datasheet the TCXO is defective. Replace the RF Board.
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