Wi-Fi signal strength monitoring under Mac OS X?

Question

Computer networks

Greetings!
Tell me some program for Mac OS (it is possible under Windows, but preferably still a poppy) that would implement:
-Measure the signal level of Wi-Fi realtime
-Build a graph
-Save monitoring data for a maximum of 30 minutes (may be longer :)
) ideally, I walk around the room / rooms, and the current level (red-yellow-green) is drawn on the canvas in 2D.
The task is this - there is an office of 200+ sq.m. in several levels. It is necessary to calculate the position of repeater points for a stable signal throughout the office.
Thanks in advance!

Answer 1

It's also included in the kit .

Answer 2

Wow, I had to do something similar recently too. Here, I dug out my script, it writes the strength of the signal and noise level to the csv-shku once a second:

echo 'strength,noise,date' > wifi_night.csv; while true; do /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | grep agrCtl | awk '{print $2}' | tr '\n' ',' >> wifi_night.csv; date >> wifi_night.csv; sleep 1; done

You can build a realtime graph from a csv-shke, for example, with this tool.