Add new comment

Al's picture

Hi David,

Colours range from green for 'good' through to red 'poor', they're just an indication to make the graph clearer.
Gaps mean that when asked to a signal strength none was returned - the strength was unknown at that point.
A blank graph in the cell pop-up means that your device is not reporting a signal level for this particular cell. Unfortunately not all devices or firmware versions report an individual cell's strength.

Hope that helps.