BIRD SITE ANALYZER SA-1700EX, Operating Instructions Manual

Page: 86 / 171

Bird Site Analyzer
72
points, and 949 points takes four times as much time
to sweep as 238 points.
The Site Analyzer display screen graph area can dis-
play only 238 data points because of its physical pixel
limitations. However, if the trace contains 475 data
points or 949 data points, all points are represented on
the display. There are three modes available to display
the data points for the trace - envelope, maximum, and
minimum. For 238 data points, there is no difference
in the display for each of the three modes because each
data point occupies a separate pixel. For 475 data
points and 949 data points, the envelope mode dis-
plays all data points, the maximum mode displays
only the highest (peak) magnitude data point for each
pixel, and the minimum mode displays only the lowest
(minimum) magnitude data point for each pixel.
Note:
When you save (or download) a trace, all
measured data points (238, 475, or 949) are saved (or
downloaded). The display modes (envelope, maximum,
minimum) are for the Site Analyzer display only and
are not saved (or downloaded) with your trace.
1. Turn on the instrument and enter the Measure
Match mode (refer to Select the Measure Match
Mode, page 19).
2. Select Frequency (refer to Setting the Measure-
ment Frequency, page 20)
3. Make sure that the instrument is calibrated (refer
to Calibration, page 17).
4. Select the Fault Location mode (refer to Select
Fault Location Mode, page 52).
5. Follow the steps in Figure 31, page 73 to set the
graph display.