TV MEASUREMENT
If you do not wish to change the modulation type, press
•1 = QAM 64 demodulation
•2 = QAM 128 demodulation
•3 = DOCSIS QAM 64 demodulation
•4 = QAM 256 demodulation
After selecting the modulation type you are automatically directed to the symbol rate entry.
Select the appropriate symbol rate by pressing | to | . |
LC display: |
|
|
•1 = 6900 kS
•2 = 6111 kS
•3 = 6875 kS
•4 = USER
Press the button to go to the menu for USER entry of the
symbol rate.
Enter the desired symbol rate and complete your entry by pressing
the button.
After selecting the symbol rate you are automatically directed to the HF standard switch.
LEVEL MEASUREMENT OF “DVB-C”/“DVB-T/H” SIGNALS
ANALOGUE CABLE/DVB C SWITCH
| Press once | = Analogue cable TV |
| Press again | = |
• | Channel: Special channel 54 |
|
• Operating mode: TV |
| |
• | Measured level: 62.5 dBµV |
|
DVB-C/DVB-T/H MER, BER AND OFFSET MEASUREMENT
The modulation error rate (MER), the bit error rate (BER) and the carrier frequency offset can be measured to rate the digital reception quality.
To call up DVB-C/DVB-T/H measurement:
In CABLE digital or Terrestrial digital reception mode press the button.
LC display for DVB-C signals:
•MER modulation error rate: 28.5 dB
•Modulation = 256 QAM
•BER bit error rate:
•Standard =
•Carrier frequency offset: +0.10 MHz
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