SUBTITLE BAR ABOVE GRAPH
At the top of the screen in the right corner under the selected channel
plan the QAM type (64 or 256) and channel number is displayed. Directly
below the channel number is the channel frequency and channel level information.
TRACE VIEW AREA
The trace will change only if levels are different from the levels of the
previous trace.
SUBTITLE BAR BELOW GRAPH
This area consists of the start, stop and center frequency.
MARKER STATUS AREA
The QAM INGRESS measurement mode also contains an area referred to as the
Marker Status area (below lower subtitle bar). This area consists of the
marker name (A or B), marker frequency (in MHz), and measured signal level
for the frequencies which the markers are on. The black square around
the letter A or B below the trace graph shows the active marker. The delta
value (in dB) between the markers is also displayed. Next to the marker
status the sweep maximum-minimum dB level is displayed.