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Step 5. Running the real-time Signal Strength Monitor
In this document, we discuss only the use of the WirelessGRID’s exclusive real-time signal
strength monitor. At anytime and from any location in your network, this monitoring tool
can be used to check signal quality between any two WirelessGRID bridges in the
network.
strength monitor. At anytime and from any location in your network, this monitoring tool
can be used to check signal quality between any two WirelessGRID bridges in the
network.
Additional information on our web-based Signal Strength Indicator and RSSi Graph, and
detailed physical antenna adjustment instructions can also be found in the product
manual.
detailed physical antenna adjustment instructions can also be found in the product
manual.
With steps 1 through 4 completed, and a ping session running to verify you’re connected
to bridge A, open a Telnet session from test station A to bridge A using the following
steps.
to bridge A, open a Telnet session from test station A to bridge A using the following
steps.
1. Open a Telnet session to the bridge A, IP address, port 3000 (see example
below).
NOTE
When field deploying a new WirelessGRID link or multipoint system, it is important to use the antenna
alignment utility, combined with the physical antenna alignment process, to optimize the received
signal strength between bridges. This applies to both point-to-point links and entire multipoint or mesh
networks. The longer the path between two locations, the more important these tools are in optimizing
signal strength and data throughput, and maximizing link reliability. This tool should always be run at
BOTH ends of a point-to-point link to ensure both antennas are properly aligned.
Optimal RSSi values for field deployments range between 18 and 40. Values seen in bench tests can
be as high as 75. The difference between such figures is normal, due to factors such as expected loss
of signal strength along the wireless path, antenna alignment differences, environmental issues, and
other variables.
alignment utility, combined with the physical antenna alignment process, to optimize the received
signal strength between bridges. This applies to both point-to-point links and entire multipoint or mesh
networks. The longer the path between two locations, the more important these tools are in optimizing
signal strength and data throughput, and maximizing link reliability. This tool should always be run at
BOTH ends of a point-to-point link to ensure both antennas are properly aligned.
Optimal RSSi values for field deployments range between 18 and 40. Values seen in bench tests can
be as high as 75. The difference between such figures is normal, due to factors such as expected loss
of signal strength along the wireless path, antenna alignment differences, environmental issues, and
other variables.
2. At the Telnet prompt, enter the User Name and press Enter.
3. Enter the Password and press Enter.
4. Enter the Remote MAC Address of bridge B and press Enter.
3. Enter the Password and press Enter.
4. Enter the Remote MAC Address of bridge B and press Enter.
When you’ve entered the remote MAC address of bridge B and pressed Enter, you
should see receive signal strength values (displayed in dBm) streaming across the
Telnet screen (see figure below). These values indicate the RSSi (signal strength) of
the RF packets sent from bridge B.
the RF packets sent from bridge B.
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