Planar IT-100 Operating Manual page 30

Depending on the type of the measured channel, the Analyzer enables monitoring of
the following quality parameters:
Channel type
Analog
Digital (DVB or J.83-B/C)
Digital (unknown modulation)
FM-radio
Pilot signal
Each parameter diagram includes 300 time intervals. Depending on the user-defined
measurement duration, each time interval equals to:
Measurement
5 min
duration
Time interval,
1
sec
Each time interval accumulates minimum and maximum values of quality parameter,
as well as errored seconds count:
1) ES. Indicates the number of seconds during which errors were detected:
− DVB or J.83-B/C Channel. At least one errored MPEG packet or
synchronization loss is detected during the second;
− Analog
synchronization loss is detected during the second;
2) SES. Indicates the number of seconds during which severe errors were detected:
− DVB or J.83-B/C Channel. Over 5% of errored MPEG packets or
synchronization loss is detected during the second;
− Analog Channel. Synchronization loss is detected during the second;
3) UAT. Indicates the number of seconds during which channel synchronization was
lost.
The measurement mode can be set up in the dropdown menu accessed by pressing
the F1 / Settings key:
1) Duration. Signal measurement duration: 5 min, 10 min, 30 min, 1 h, 2 h, 6 h, 12
h, 24 h, 48 h, 72 h;
2) Beeping on SES. Switching sound indication of severe error (SES) detection: Off,
On;
3) Autosave. Switching automatic measurement results saving to a file upon
measurement completion: Off, On.
Figure 4.18
10 min 30 min
2 6
Channel. Minimum
Measured parameter
Level C/N
+ +
+
+ +
+
+ +
1 h 2 h 6 h
12 24 72
signal-to-noise ratio
30
MER BER
+
12 h 24 h 48 h
144 288 576
below 43 dB
+
72 h
864
or