I'd like to know technically how to diagnose whats causing poor signals and how to improve:
Now I have a D-Link DIR-655 and its signal level is set to full, but the router model should not be the primary thing. I also have a custom antenna, specifically:
Here are my SNR calculated with KISMAC at different distances:
-1 Feet: 47
-20 Feet: 15
Now at 15 it seems signal is low, the connection bad, so I'd like to know:
What is a good SNR, IE: what should be your SNR to get a great connection.
How to diagnose if anything is causing a bad SNR.
How to improve it, wifi router settings, antennas.