Re: GPSD doesn't report signal dropout

[Tom Isaacson]

That was added in NMEA0183 v2.3, so not having it isn't so much a bug
as just an older implementation.

> What gpsd, and u-blox, calls status, is what NMEA calls the NMEA mode
> field.  That should be present in GPVTG, GPGLL, GPRMC, and other
> NMEA messages.
>
> Just one of many things the Qeuctel GNSS receivers get wrong.  gpsd code
> is littered with Quectel "Querks" workarounds.