Chapter 4
Using Spectrum Analyzer
JD700B Series User’s Guide
101
Loading and displaying raster data
If you have a set of raster data files generated through the ariesoGEO application, you can load and overlay
the data on your base map to help you check the signal quality and the strength of interferences while
driving toward the area of interest.
Procedure
5
Copy a set of raster data files into your USB memory drive, including the following:
ASCII:
.tab
,
.asc,
and
.clr
files
BIL:
.tab,.hdr
,
.bil
, and
.clr
files
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.
6
Plug in the USB memory drive to your instrument.
7
Press the
TRACE/DISPLAY
hard key.
8
Press the
Load Raster Map
soft key.
The file explorer window appears.
9
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 as shown in Figure 41.
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.
10
To select the display option, complete the following steps:
Press the
Display Options
soft key.
Select the option you desire from the choices:
On
,
Off
, and
Blink
.
11
To adjust the transparency level of the image, complete the following steps:
Press the
Transparency
soft key.
Enter a value between
0
for opaque and
100
for clear.
Press the
Enter
soft key.
Figure 41 Raster image overlaid on the base map