I've got this app which shows network signal strength as a positive integer value btw 5 and 35. Another app uses negative integers like -99dbm.
Is there a way to convert the positive values (unit unknown) to dbm?
dBm = (2 × ASU) - 113 ASU in the range of 0-31 and 99 (for not known or not detectable).
ASU(Arbitrary Strength Unit) and its range for GSM networks is 0..31 – user23414 Feb 17 '14 at 15:16