10
Model Three - Operation Manual
Features
Tilt and Favorite Group Display
Press the
TILT
TILT
2 DEF
(TILT)
key to display a graph showing the amplitudes
of up to twelve user-selected video carriers. This display also shows
the calculated difference in amplitude (tilt) between the highest and
lowest channels in the user-selected group. Press the
TILT
TILT
2 DEF
(TILT)
key again, and the Model Three displays a numeric list that shows the
amplitudes of the carriers in the group.
Single Channel Display
When tuned to a single channel, the Model Three displays bar graphs
for the video and audio carriers or power of a digital channel. It also
shows numeric readouts of the carrier amplitudes and V/A difference or
digital power.
Single Channel Spectrum
The Model Three can also provide a spectral display of the selected
channel including intermodulation products or other undesired signals
that may be present.
For a digital channel, this measurement shows the actual shape of the
modulation “haystack” to determine if there are any problems with the
digital transmission system. This feature provides you with a powerful
tool for checking in-channel flatness or mismatches that might affect
digital transmission quality.
Scan Display
Press
SCAN
to display the full span of video and audio carriers in the
selected user channel plan. This mode is useful to make a quick
check of your system’s overall flatness and amplitude. Up to four user
plans may be stored.
Amplitude limits can be imposed on the display. By using the Model
Three’s frequency marker, you can zoom in on any suspect channel
that appears in the display.
