Extreme Networks Summit WMScanner User Manual page 139

The transmit power of an access point is configured via two fields: Input (mW) power, and Gain. The
sum (dB terms) or product (absolute Watt terms) of the Input power and the Gain is displayed as the Tx
Power. The Tx Power is the signal power that is supplied to the distribution system, e.g. to the cable or
antenna attached to the access point. The Input power and the Gain are modeled separately so that for
repeaters and BDAs the power from a donor antenna can be entered into the Input power field and the
gain of the repeater/BDA can be entered into the Gain field. For WLAN access points, the Gain field
can be left at 0 (1, in absolute Watt terms) and the power output of the BTS or access point can be
entered into the Input. Regardless of how the Input (mW) and Gain fields are used, it is essential to
verify that the Tx Power field displays the desired net output.
Channel Set - This drop-down menu provides a way to indicate which grouping of channels, within
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the air interface standard, are used by the access point. Some air interface standards have blocks of
channels which are licensed as a unit and these blocks are referred to in Summit WMScanner as
channel sets. For some air interface standards, channel sets are not relevant.
Active Channel - Select the specific channel on which the access point transmits. The channel setting
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determines the frequency of transmission, which is displayed next to the channel number. The
Channel Set and Active Channel determine the interference between access points, so if your
intention is to analyze interference in your design, you must carefully and accurately set the
channels and channel sets of your access points.
Performance Tab - The Performance tab provides a Performance Lookup Table list for selecting
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various air interface performance .wvt files.
Summit WMScanner Users Guide
137