Can you clarify what is going on here? Signal strength and signal quality are two separate parameters available from most tuner cards. They aren't the same. Which are you actually monitoring? I believe it is strength. It would be good if you actually monitored quality too.
Edit: sorry, I hadn't seen jmone's post when I wrote mine.
Nick.
Short answer:
This change does not actually change the number we show OSD. What we used to call "strength" is actually "quality". I just corrected the name.
Detailed anwser:
We used to obtain a parameter called "signal strength" using ITuner interface. According to Microsoft's documentation, it represents the Network Provider-specific signal strength metric. I was not able to figure out exactly what metric it is. And it seems to depend on individual devices. That makes it hard to normalize it to a number that is easy to understand (a percentage).
Later we found another interface that gives four different parameters, lock status, present or not, quality, and strength. The former two being booleans while quality is represented by a number 1 to 100, and strength indicates the strength of the signal in decibels. I think it was for the fact that quality is on a percentage scale that we choose to display it.