Videotek VTM-2000 Specifications download pdf (Page 115)

General Operation

VTM Series Installation and Operation Handbook

3-77

Data Format

The Data Format menu is used to determine the numeric base for the Transport Stream

information that is displayed: Hex or Decimal

UTC Offset

The Universal Time Coordinator (UTC) is used to provide an offset of the time shown

on the display to the time that the program is to actually begin. This is useful for

programs shown in a different time zone to the time zone of the unit. The UTC Offset

parameters are in hour increments.

Trend Time

The X-axis of the trending chart contains the selected trending time. When new data is

entered into the trending display, the time interval on the X-axis changes while the plot

lines shift from right to left. The TRENDING TIME is set in 15, 30, 45, or 60-

MINUTE increments:

Trend Scale

The Y-axis of the trending chart is used to indicate the scale that is plotted on the

trending chart. Bandwidth data is plotted on a scale of 10 mb/s to 150 mb/s.

Trend Display

The Trend Display menu item is used to select the type of information that is shown in

the trending display. The selections are the Total Bandwidth, the bandwidth of the

selected program, and Null Bandwidth. The Null Bandwidth is the bandwidth that is

used by the Null packet.

Embedded Audio Data

When enabled in the OPTION pop-up menu, the Embedded Audio display appears.

Each channel is displayed on two pages. The first page is CHANNEL STATUS BIT

and the second page is USER BIT. Audio Control Packet data provides the first block

of information at the top of the pane. The information is embedded at line 9 or 571

(interlaced only) of the horizontal ancillary data for the Y channel.

At the top of the pane DID indicates the audio groups that are embedded as audio, and

a “-”indicates the audio group is not present. Also, the channel number for the data

displayed is shown.

The remaining Embedded Audio information provided in the Embedded Audio pane

are:

• CHANNELS PRESENT indicates all of the active channels by showing the

channel number. When the channel is not present, a “-” appears.

• SAMPLING RATE indicates the sampling frequency of the embedded audio.

• FORMAT indicates the professional or consumer audio format.

• AUDIO DATA indicates if the data received is audio (shown with YES) or not

audio (shown with NO).

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Videotek VTM-2000 Specifications Page 115