Wind

[Владимир Калачихин]

I tried to create NMEA flow generator with wind info. And I see a strange.

First:
As it seems to me, min NMEA flow for this must contain RMC and MWV 
sentences only. And it is so for SignalK. But not for gpsd.
In order for the gpsd return 'wspeedX', in NMEA must also be a DBT sentence.
Am I missing something?

Second strange:
The result of
gpsdecode < shortWithWind.nmemea
is different from
gpsfake shortWithWind.nmea


I do:
in one terminal:
gpsfake shortWithWind.nmea
in other terminal:
gpspipe -w
I see a 'wangler' in json.

If I remove last string from shortWithWind.nmea and repeated - no a 
'wangler' field in json.

If I do
gpsdecode < shortWithWind.nmemea
no a 'wangler' field in json too.





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Владимир Калачихин

shortWithWind.nmea
Description: Text document