Guidelines For Installation; Aiming The Antenna And Placing The Remote; Interconnect Cable - Murata Hn-210 Manual

Guidelines for Installation

When installing your system, always consider the following points:
Directional antennas are best for remote unit sites. They may increase the cost, but
they confine the transmission path to a narrow lobe and minimize the interference
from nearby stations.
For systems with constant interference present, you may need to change the polarity
of the antenna system and reduce data streams. Groups of short data streams are more
reliable and have a better chance of success in the presence of interference than do
long data streams.
Systems installed in rural areas are least likely to encounter urban interference.
Multiple HopNet systems can operate in close proximity to each other but require a
unique network address.
Poor quality coaxial cables will seriously degrade system performance. Use low- loss
cable that is suitable for 2.4 GHz operation.
Short cable runs minimize signal loss.

Aiming the Antenna and Placing the Remote

Use the following guidelines for aiming the antenna and placing the Remote.
Do not place anything immediately in front of the antenna that could obstruct its
radiation pattern. Because the antenna in the HopNet Remote is inside the unit, the
antenna must have a clear line of sight.
Use the sticker on the HN-210 Remote unit to help you locate and aim the antenna.
The sticker indicates which direction the antenna is pointing.
Be sure the antenna end of the HN-210 Remote faces the Base or Repeater that it is
communicating with. Our tests have found that antenna placement is not critical as
long as the patch antenna is facing in the general direction of the other end of the link.
If possible, place the Remote unit at a higher elevation than the structures surrounding
it to increase range and link reliability. Since the Remote will operate with up to 100
feet of interconnect cable between it and the Host, you can mount the unit on top of a
building or other structure that will provide higher elevation.

Interconnect Cable

The HN-210 and HN-210X come with 50' (15 meters) of high quality interconnect
cable. The cable may be lengthened by adding an additional 50' cable (part no.:
CBLEXT50). The maximum cable length that the HN-210 and HN-210x will support
is 100' (30 meters).
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