CableTronix CT-SAMM, Руководство пользователя, Страница: 4 / 6

4
Manual
Step 8
Set the audio carrier level 15 to 17 dBmV below the video carrier level by adjusting
the “A/V” potentiometer.
Step 9
Connect baseband video and audio signals to the corresponding
“VIDEO IN” and “AUDIO IN” input ports of CT-SAMM, respectively.
Step 10
Connect “RF OUT” port of CT-SAMM to monitor or television to verify video and audio.
Tune the TV or set top box to the modulator’s RF output channel to view on screen.
Note the output of the CT-SAMM is a CATV band analog signal, and not a digital signal.
Ensure the tuning device is properly configured for analog CATV signals.
Step 11
Adjust the sound on the television to an acceptable average volume on your TV using the
“Audio” potentiometer on the face of the CT-SAMM. Turn on the Audio Pre-Emphasis if noise is
prevalent in the higher frequency audio signals. A precision demodulator and audio dB meter is
recommended for this setting.
Step 12
Set the video modulation picture intensity by adjusting the “Video” potentiometer on the face of
the CT-SAMM. A precision demodulator and waveform monitor are recommended for this
setting.
Step 13
Connect the “RF OUT” port of the CT-SAMM to a combiner input on the head-end.