Wireshark values of Signal level and SNR different from terminal (layer 1,2 &3) output values

Patrick asghar1992 at hotmail.com
Sun Nov 30 18:54:30 UTC 2014

I have been noticing from quite a while that the values of Signal level and
SNR embedded in GSM header (GSMTAP) in wireshark (b/w 0-255) are different
from that visible on the terminal while layer 1 and layer 2 & 3 are
operating (something like -60 dBm and 60 dB respectively). Can anybody plz
explain why is that difference if both these values represent the same
meaning? Is that due to different definations of int8_t and int in GSMTAP.h
and gsm48_rr.c respectively. If yes how to convert these values to dBm as
shown in terminal?


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