Advantech ADAM-2000 Series User Manual page 19

1.2.3.4 ADAM-2000 Antenna Pattern
The antenna of the modules with power amplifier uses the Omni-directional antenna.
Its antenna pattern looks like a doughnut as the figure on the left below. The cross-
sectional view of the antenna pattern is on the right below. The plane vertical to
antenna has stronger signal, but the region on or under the antenna has lower signal.
The modules including: ADAM-2520Z, ADAM-2510Z, ADAM-2017PZ, and ADAM-
2051PZ.
The modules without power amplifier use a build-in antenna inside the module. The
build-in antenna is shown as a white bar on the left figure below. Its antenna pattern
is also looks like a doughnut which vertical to antenna. The modules including:
ADAM-2031Z and ADAM-2051Z.
For improving better performance of signal, user may need to adjust the angle of the
antenna to change the antenna pattern. Beware of the relationship of the angle
between position of router and end-devices.
The transmission distance of the modules is defined under the condition of clear line
of sight. Following are the top view of antenna. The modules with power amplifier has
less than 1000 m distance as the figure on the left, and the modules without power
amplifier are less than 110 m.
9 ADAM-2000 Series User Manual