User's Manual

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This could be due to two things:
In-band interference from an RF source broadcasting in the DECT area of the
spectrum. This can be verified using a DECT band monitor or by using a Spectrum
Analyzer.
Long Delay Spread Multipath, where the signal is bounced off a number of reflective
surfaces, such as metal ceilings, gantries, walkways or other large structures. This
problem is greatest where the reflective surface is large and exists at a range of
distances from the antenna. To resolve this problem, consider siting the antenna
where it cannot “see” the reflective surface or installing a reflector close to the
antenna between it and the reflective surface.
3.3.2 Testing antenna handoff
After testing the coverage areas for individual antennas, test the handoff between the
antennas. When you walk through a coverage area with the beltpack, the beltpack searches
to find the antenna with the best signal strength, and switches transmission to that antenna.
Therefore the beltpack continually hands off transmission among antennas as you move
through the coverage area. You can determine which antenna the beltpack is connected to
using the Configuration Editor Diagnostics Tool.
To test antenna handoff, connect any additional antennas in the installation and walk through
the coverage areas to ensure that the coverage is continuous and complete, without audio
breakups. Reposition antennas if necessary.
3.3.3 Getting information on active antenna status
You can also monitor which beltpacks are connected to which antennas using the Base
station SYSTEM menu and using the Configuration Editor Diagnostics Tool.
When you select ANTNS from the SYSTEM menu, the display shows the status of the active
antennas that are connected to the Base station, and shows the slots on each antenna that
are occupied by beltpacks. This information may be useful during a site survey, or when
troubleshooting coverage areas or antenna connections.
A typical display is shown below:
Figure 3-6 ANTNS menu
The numbers 1 through 10 represent the maximum number of antennas that can be
connected to the Base station. Numbers 1 through 5 can be positions on a splitter connected
to transceiver port 1, while 6 through 10 can be positions on a splitter connected to transceiver
port 2. An antenna connected directly to transceiver port 2 would appear at position 6.
“__” indicates an empty slot on an active antenna that is connected to the Base station. A
number in place of a “__” indicates that this slot is occupied by the indicated beltpack.
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FreeSpeak II User Guide