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4-2
Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for MS-DOS
OL-1744-02
Chapter 4 Utilities
Site Survey and Link Test
Site Survey and Link Test
To perform a meaningful site survey, you need to conduct a test that accurately models the intended use
of the system. It is important to perform a site survey using equipment that is similar to that
implemented. Survey these items:
• Transmit power
• Antennas and types
• Antennas and locations
• Packet (fragment) size
• Interference
Conduct the site survey with all variables set to the operational values. You should also perform it during
the time the RF link is generally functioning with all other systems and noise sources operational. For
efficiency, execute the site survey application entirely from the mobile station.
The link test tool helps determine the RF network coverage. The results of the link test help eliminate
low RF signal level areas that can result in loss of connection between the PC Card and the access point.
It is important to remember that the information being displayed is from the access point viewpoint.
Therefore, packets sent are from the access point to the PC Card client. Packets received are from the
PC Card to the access point. Signal quality is an estimate of the signal strength recorded at the time of
packet reception by the radio.
Using Windows 3.11 or DOS to Perform a Link Test Using Telnet
Note For additional information about performing link tests, refer to the documentation for the access
point your system is using.
Link test through a Telnet session/connection is a useful tool for determining:
• Coverage range of an access point
• Communication range of stations/mobile stations
Follow these steps to perform the link test using a Telnet session.
Step 1 Install the drivers.
Step 2 Configure the drivers for network operation.
Step 3 Ensure that mobile or portable PC Card devices and the access point have unique IP assignments.
Step 4 Set up an access point for the intended operation (set fragmentation thresholds, RTS thresholds, and so
on.)
Step 5 Start the operating system on the mobile station.
Step 6 Configure the adapter.
Step 7 Make sure the mobile station is associated to the access point.
Step 8 Start a Telnet session on the mobile station to the access point. Depending on the system in use, the
Telnet application might have logging and note taking capability. If so, enable these modes.