MASTER STC
USER MANUAL
27
11.2 THE SELECTED CHANNEL CARRIERS ON A DTT (COFDM)
SIGNAL
THE CHANNEL IS SUCCESSFULLY LOCKED (THE LOCK ON THE LCD
BOTTOM-RIGHT CORNER IS CLOSED)
NOISE MARGIN, QUALITY TEST, MER AND ERROR COUNT
MEASUREMENTS
The second row of the LCD [C] displays TV COFDM DVB-T&H.
When the channel is properly locked, the first screen of the meter shows the Noise Margin
value (N.MARG), the result of the real time quality test (QLTY, FAIL, MARG. and PASS), and
the MER and ERROR COUNT measurements. The Noise Margin and the MER
measurements are also displayed on level bars with peak level memory.
Furthermore, the bottom row of the LCD will display the main information of the tuned
bouquet:
• Bouquet name (network name), after some seconds and under acceptable
receiving conditions.
• Encryption system (encrypt), if there is at least one encrypted program in the
bouquet, after some seconds and in acceptable receiving conditions.
• T, above the TV icon on the LCD [C] frame
• A closed lock in the bottom right corner of the LCD [C]
BER MEASUREMENTS BEFORE AND AFTER ERROR CORRECTION
VITERBI
From the previous measurement screen, press once and release the MEAS [5] key
once. The BER before Viterbi error correction (in this meter labeled as bBER or preBER) and
the BER after Viterbi error correction (in this meter labeled as aBER or posBER) parameters
will be displayed.
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