Wi-Fi Signal Strength in Open Mobile and iPassConnect

Open Mobile reports the signal strength as a percentage, and iPassConnect reports the signal strength in decibels (dB).

Scoring the Signal Strength

Open Mobile

Open Mobile reports signal strength as a percentage (with 100 being the highest) with a score from 1 to 5 (with 5 being the highest) as shown in the following table.

Signal Strength Score
81%-100% 5
61%-80% 4
41%-60% 3
21%-40% 2
0%-20% 1

iPassConnect

iPassConnect reports signal strength as a decibel (the lower the decibel the higher the signal strength) with a score from 1 to 5 (with 5 being the highest) as shown in the following table.

iPassConnect reports the decibel without indicating that it should be a negative value.

Signal Strength Score
X > -45 dB 5
-45 dB > X > -65 dB 4
-65 dB > X > -80 dB 3
-80 dB > X > -90 dB 2
-90 dB > X 1

Connection Score

For both Open Mobile and iPassConnect, users should be able to connect if the network has a score of 3 or greater. For Open Mobile, this means a signal strength greater than 40%, and for iPassConnect, this means a signal strength higher than -80 dB.

In some rare instances, users will not be able to connect with a score of 3. In this case, the user may need to move just a little to improve the signal to noise ratio (perhaps a steel column was scattering the signal).

Command Prompt

On Windows 7 or Windows Vista machines, the signal strength (as a percentage) can be obtained through the command Prompt.

Using the Command Prompt to obtain the signal strength:

  1. Open the Command Prompt.
  2. Type: netsch
  3. Type: wlan
  4. Type: show all

Below is a screenshot of the result (with signal strength circled in red).

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