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CDM-600L Satellite Modem
Front Panel Operation
6.3.4.3
MONITOR: STATISTICS
STATISTICS:
09/12/99 14:48:06
The user may scroll backwards or forwards through the entries in the statistics log, using
the [↑] [↓] arrow keys. Pressing ENTER or CLEAR will take the user back to the
previous menu.
The top line displays the log entry number and event log.The bottom line of the display
indicates the time and date of the entry shown in DAY-MONTH-YEAR format. The
display shows the statistics data that has been measured and recorded.
The meaning and format of the numbers is as follows:
•
•
•
If the demod has lost lock during the measurement interval, the minimum Eb/No will
show 'LOSS' rather than indicate a value. However, the average value (while the
demod was locked) will still be calculated and shown. If, on the other hand, the
demodulator has been unlocked for the entire measurement interval, the average
IMPORTANT
Eb/No will also show 'LOSS'. (The display will show 'LOSS,LOSS'.)
•
•
Examples:
Use the [←] or [→ ] arrow keys to select the CLEAR ALL option. Select Yes or No
using the [↑ ] or [↓] arrow keys and press ENTER to implement, or CLEAR.
STA114:
The user defines a measurement interval (see CONFIG, STATS) and during this
interval, Eb/No and Transmit Power Level Increase (TPLI) are observed, at a
1 second rate.
At the end of this period, the average Eb/No is calculated and recorded, and the
minimum value seen in the interval.
Similarly, the average TPLI is calculated, along with the highest value seen in the
interval.
If the measured values are ≥ 16.0 dB, the display will show 16.0 dB.
If AUPC is not enabled, the values of maximum and average TPLI will both
show '0.0'.
08.0,13.5,2.5,1.8 means:
Minimum Eb/No observed in the measurement interval = 8.0 dB
Average Eb/No observed in the measurement interval = 13.5 dB
Maximum TPLI observed in the measurement interval = 2.5 dB
Average TPLI observed in the measurement interval = 1.8 dB
LOSS,04.5,0.0,0.0 means:
There was a loss of demod lock during the measurement interval
Average Eb/No observed in the measurement interval = 4.5 dB
Maximum TPLI observed in the measurement interval = 0 dB
Average TPLI observed in the measurement interval = 0 dB (Which indicates
no AUPC activity, or that AUPC is disabled.)
16.0,16.0,9.0,9.0
CLEAR ALL: NO
6–34
MN/CDM600L.IOM
(N/Y)
Revision 0
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