Rev. 2 | |
Web Server Pages | CD/CIM550.IOM |
Field | Description |
Modem Statistics Log | The user may scroll backwards or forwards through the entries in |
| the statistics log, using the UP/DOWN arrow keys. Pressing |
| ENTER or CLEAR will take the user back to the previous menu. |
| The event log can store up to 250 events. |
| 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 |
| 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. |
| Notes: 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 ‘0.0'. |
| Examples: |
| 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.) |
| If the user selects CLEAR, the statistics log is cleared. |
|
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