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NOTE
The .tab file type is a geospatial vector data format used in many geographic
information systems. The color file (.clr) is an optional file, but the image will be
displayed as a grayscale image without it. The size of the raster map must be
1024 x 1024 or smaller.
2.
Plug in the USB memory drive to your instrument.
3.
Press the TRACE/DISPLAY hard key.
4.
Press the Load Raster Map soft key.
The file explorer window appears.
5.
Navigate to the raster file (.tab) you want to open, and then press the Load soft key.
The raster image appears on top of your base map.
NOTE
If the area of the loaded raster data is not within the boundary of the base map, you will
not see the raster image on the screen.
6.
To select the display option, complete the following steps:
a.
Press the Display Options soft key.
b.
Select the option you desire from the choices: On, Off, and Blink.
7.
To adjust the transparency level of the image, complete the following steps:
a.
Press the Transparency soft key.
b.
Enter a value between 0 for opaque and 100 for clear.
c.
Press the Enter soft key.
Setting limit for interference analyzer
Procedure
To use the display line:
1.
Press the LIMIT hot key.
2.
Press the Display Line soft key for a reference line.
3.
Enter a value, and then press the dBm unit soft key.
4.
Toggle the Display Line soft key between On and Off to display and dismiss the reference line.
The straight line appears across the screen to be used as a visual reference only.
To display the multiple segment line:
1.
Press the LIMIT hot key.
2.
Press the Multi Segment Line soft key for Pass/Fail indication.
3.
Toggle the Limit soft key between Upper and Lower to select the one to be displayed.
4.
Set the number of segments for the selected upper or lower limit line. You can set up to 50
segments.
a.
Press the # of Line soft key.
b.
Enter a value between 1 and 50 by using the numeric keys.
c.
Press the Enter soft key.
5.
Press the Autoset soft key to let the instrument set the limit for each segment and display the
line.
6.
Optional. To move the limit line, complete the following steps:
a.
Select Limit Up/Down or Limit Left/Right.
b.
Turn the rotary knob to move the line as desired. You can also manually enter a value.
7.
Optional. To edit the segment properties, complete the following steps:
Using Interference Analyzer
JD780A Series Analyzers
119
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