Retrieving SNR/SINR values for 3G connections.

Aleksander Morgado aleksander at
Thu Oct 19 12:45:35 UTC 2017

On Thu, Oct 19, 2017 at 1:45 PM, Paul Gildea <gildeap at> wrote:
> I want to query a modem (MC7455) and find out the SNR values periodically.
> I've noticed that this information is only available while on LTE?

SNR is only defined for LTE signal in the QMI NAS specs, yes:

> To that end I noticed that both connections report SINR.  However the value
> is always static (SINR (8): '9.0 dB'), is this a placeholder or does it
> vary?

The modem reports "SINR Level 8" and we convert that to 9.0 dB (it's a
direct mapping):


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