Mn/Cdm570L.iom - Comtech EF Data CDM-570L Installation And Operation Manual

CDM-570L Satellite Modem with IP Module
IMPORTANT
Examples:
(MONIT, STATS) CLEAR
The top line of the display indicates the log entry number, and the time and date
of the entry. Note that in accordance with international convention, the date is
shown in DAY-MONTH-YEAR format.
The bottom line of the display shows the statistics data which has been measured
and recorded.
The meaning and format of the numbers is as follows:
Minimum Eb/No, Average Eb/No, Maximum TPLI, Average TPLI
(where TPLI means Transmit Power Level increase, if AUPC is enabled).
The user defines a measurement interval (see MONITOR, STATS,
CONFIGURE) and during this interval, Eb/No and TPLI are observed, at a one
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.
Note: 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 Eb/No will also show 'Loss'. (The display will show 'Loss, Loss'.)
If the measured values are greater than, or equal to 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 'Off'.
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, Off, Off 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 = AUPC disabled
Average TPLI observed in the measurement interval = AUPC disabled
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MN/CDM570L.IOM