Wireless signal strength
is traditionally measured in either percentile or dBm (the power
ratio in decibels of the measured power referenced to one
milliwatt.) By default, CommView for WiFi displays the signal
strength in percentile. The level of 100% is equivalent to the
signal level of -35 dBm and higher, e.g. both -25 dBm and -15 dBm
will be shown as 100%, because this level of signal is very high.
The level of 1% is equivalent to the signal level of -95 dBm.
Between -95 dBm and -35 dBm, the percentage scale is linear, i.e.
50% is equivalent to -65 dBm.
If measurements in dBm are
preferable, you can switch to dBm by using the Display
signal level in dBm option in Settings =>
Options => Decoding. When Display
signal level in dBm is turned on, the signal
strength will be shown in dBm on the Nodes,
tabs, as well
as in the Scanner
window. In the
packet decoder tree, the level is always shown in both percentile