Merogram (Only Tv Explorer Ii +) - Promax TV EXPLORER II Manual De Instrucciones

This interference could not be detected in any other way for it can't be seen on the
spectrum analyser and it is not strong enough to degrade the average MER, CBER or
VBER readings substantially.
5.17.2 MEROGRAM function (only TV EXPLORER
The MEROGRAM function is a useful tool to detect sporadic problems on a period
of time in a DVB-H/T channel.
The MEROGRAM function makes a graphical representation of the MER level
carriers regards to the time. Each level is represented with a different colour, the Y-axis
belongs to carriers and the X-axis to time. Therefore a colour map is showed on the
display, see figure 50. Any MER level could be displayed at any time reference using the
cursors or the variable knob. This tool is especially useful when a MER level analysis is
going to be processed during a long period of time. When the process is finished the
capture could be showed and any anomaly will be easily detected at any time.
Only DVB-T and DVB-H signals could be used with this function.
6776 3388
36
10
0
t -
Select a DVB-H/T Measure or TV signal screen and press
MEROGRAM. The MEROGRAM function will run according to the TV or Measures
signal configuration. The figure 51 shows the initial screen.
Page 72
USER'S MANUAL. TV EXPLORER II/II+
27.1 F:
793 MHz
30 s. T.span: 60 /
Figure 51.- MEROGRAM.
II +)
102 s.
then select
12/2013