Dell PowerConnect W-AirWave 7.6, Руководство пользователя

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284 | Using VisualRF Dell PowerConnect W-AirWave 7.6 | User Guide
Figure 210:
Surveys and Training menu for a client device
To remove a statically trained device, select client, and select the Surveys and Training option. Select Delete button
(which will have replaced the Add button) for Static Training.
NOTE: The static locations are automatically saved, so the Save icon (floppy disk) will not appear.
Adding Client Surveys
Client surveys provide a method for increasing the accuracy of the attenuation grid by taking real signal samplings
from client devices associated with the WLAN.
Key differentiators of AirWave’s client surveys are:
1. They take readings from the access points and not the client.
2. They take numerous samples.
This produces a more accurate representation because signals obtained from the client's card (the signal level at
which a client hears the AP) can vary from vendor to vendor. The signal levels at which APs can hear a client are
already normalized. Using multiple samples alleviates spikes or troughs that come from using a single sample.
To start a client survey, follow these steps:
1. Drag the client to the proper location.
2. Select the client to see the Properties pop-up menu, as shown in Figure 211 :
Figure 211:
Client Surveys
3. Select the Surveys and Training option.
4. Select the appropriate transmit power for the wireless client. Leave the default to 30mW if you are unsure.