Interface Configuration and Interpretation

Symbol Rate (MS/s)

Symbol rate value in mega symbols per second.

Enter the required value and select Set.

Viterbi Rate Auto

When enabled, the L-Band adapter automatically establishes the Viterbi Rate when acquiring Front End Lock.

NOTE. The Viterbi Rate Auto option will not work correctly if the Viterbi rate is 5/6. If this rate (5/6) is known, or suspected, then the Auto option should not be used.

22KHz Tone The Local Oscillator Frequency is selected by applying a 22 kHz tone.

Invert Spectrum The sense of modulation may be inverted due to the number of mixing stages in the installation. Enabling the Invert Spectrum checkbox will invert the L-Band output.

Front End Lock If the L-Band adapter Front End is able to acquire full lock onto the channel and is receiving the signal correctly, the Front End Lock (FEL) indicator will light up green. When a signal is present but no lock is achieved the indicator is red. When no signal is found, the indicator is gray.

BER

Bit Error Rate.

MTM400 MPEG Transport Stream Monitor User Manual

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