Re: gpsd g10de777bb vs Jackson Labs Micro JLT

[Daniel O'Connor]

> On 13 Aug 2021, at 09:27, Gary E. Miller <gem@rellim.com> wrote:
> 
> Yo Daniel!
> 
>> An svid of 201 is very illegal.  So should be easy to find.
>> 
>> It came from this:
>> 
>> $GAGSV,2,1,08,301,26,315,40,304,9,225,37,307,12,45,33,318,23,75,41*53
>> $GAGSV,2,2,08,319,66,223,39,320,0,0,35,321,78,312,43,327,46,137,40*58
>> 
>> Which is a usage of GAGSV that gpsd have never seen and is not
>> compliant with wgat I think I know about NMEA 4.10.  But, of course,
>> I do not have the actual standard.
>> 
>> Since it so clearly conflicts with how other vendors use it, it
>> should be not hard to code it as a quirk.
> 
> QUirk handled in git head.
> 
> Also patched for some other nonstandard behavior.  Their doc details
> other nonstandard GAGSV and GNGGA, behavior not patched.
> 
> I expect there to be other problems with their firmware.
> 
> Sloppy work on their part.
> 
> Please test, and file a bug with Jackson Labs.  Their doc shows
> they do not understand how NMEA wants this done.

I'm happy to report a bug but I'd need a bit more information - I don't have 
access to the NMEA spec so I can't check if it is standard or not.

--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
 -- Andrew Tanenbaum