Chapter 5
Viewing Files
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The V/A Ratio is only calculated and displayed for the primary audio carrier, although both are compared to the criteria for pass/ fail analysis.
In addition, The User Name, File Name and Location are displayed for each Analog or Digital Saved SLM screen.
ANALOG CHANNELS
Tabular measurement information is displayed next to the bar graphs. Measurements within the programmed Pass/Fail Limits criteria are displayed in black text in a white box. Measurement results outside of the limits criteria are displayed in red text to indicate a failing result.
Channel – The channel number and modulation type are displayed. The modulation display indicates the type of modulation on the channel currently being measured, according to the data in the Channel Table. It is important that the Channel Table information is accurate. Erroneous measurement results will be obtained if the wrong modulation type is set, since the wrong detector type will be used for the measurements. An average detector is used for digital measurements, while a peak detector is used for analog carriers.
Video – Displays the video carrier frequency and the result of a measurement of the video carrier peak level in dBmV.
Audio 1 – Displays the frequency of the audio carrier and the result of the measurement of the primary audio carrier level in dBmV.
Video to Audio Delta – This measurement will be added to a future release of
Adjacent Channel – Displays the channel number and modulation type of the adjacent channel.
Adjacent Video – Displays the frequency of the adjacent carrier and level measurement of the upper adjacent video carrier in dBmV.
Adjacent Video Ratio – This display will be added in future releases of the
