Task Checked OK/Not OK Remarks
Parameters are set.
See 3.6 Digital AFC (DAFC) (page 50).
Test Passed
For Customer Date:
For Vaisala Date:
A.19 MFC Functional Test and Tuning
(Optional)
Test Goal
Verify that the Manual Frequency Control (MFC) is functioning properly.
Skip this test if you are not using the RVP900 AFC.
Test Equipment
KVM connected
Test Procedure
1. Enter the TTY setups through dspx.
2. Type the Ps command (Plot burst spectrum and AFC).
3. Type the = command to enter the MFC (manual frequency control) mode.
Verify that the MFC mode is indicated by the Manual notation next to the AFC % output
indicator on the terminal.
4. Use the U/u and D/d commands and verify that these commands shift the measured IF
frequency (as displayed on the TTY) either up or down.
The U command should increase the frequency and the D command should decrease
the frequency. If the sense is reversed, go to the Mb command menu and change the
question Burst frequency increases with increasing AFC voltage.
RVP900 User Guide M211322EN-J
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