Table 4-6. Noise Power Conversion

TM 11-5895-1012-10

Table 4-6. Noise Power Conversion - Continued

4-50. Performance Monitoring

does not constitute a trend. If, after several measure-

ments are taken, further changes are indicated, a de-

The DCS Performance Monitoring Program encom-

passes monitoring the operation of the DCS transmis-

grading trend is evident and corrective action should

sion links using critical operating parameters as per-

beinitiated.

formance indicators, and the analysis of the informa-

b. Trend analysis is not limited to quality control

tion received to develop performance trends. Each

measurements. Trends can be detected from the

DCS Technical Control Facility will participate in this

number of outages over a given period of time. The

program in accordance with established guidelines and

minimum number of outages per circuit, of course, is

directives.

not definable. The length of outage should not be con-

sidered in this analysis.

4-51. Trend Analysis

c. Trend analysis can be expanded to determine

Analysis of quality control data will be performed by

whether large number of outages are occurriug in the

the Technical Control Facility on as near a real-time

same time frame. This analysis should be performed if

basis as possible to identify degrading trends.

large numbers of outages cannot be reduced after re-

a. In-service quality control tests are the best tools

peated attempts to locate and correct the deficiency.

to identify degradation because measurements can be

d. To simplify the analysis effort, data may be

taken and recorded without interrupting the user.

transposed from worksheets to a line or bar graph or

Measurements of each quality control test are com-

some other management tool, such as a computer run-

pared with the measurements taken in the past. If a

off to give the history and present quality of a given

definite change is noted, but the circuit is still provid-

circuit or channel at a glance. Comparison with all

ing satisfactory user service, it should be flagged as a

other channels of a particular group will indicate the

special interest circuit. One substandard measurement

general quality of the group.

4-43