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Re: [gpsd-dev] [PATCH 1/3] TSIP: improve comments


From: Nuno Gonçalves
Subject: Re: [gpsd-dev] [PATCH 1/3] TSIP: improve comments
Date: Tue, 21 Jun 2016 19:11:53 +0100

On Tue, Jun 21, 2016 at 6:53 PM, Gary E. Miller <address@hidden> wrote:
> I don't have the NMEA doc, but one reference says only 12 PRNs are
> allowed in that sentence.  Another says 14.  We'll need to check that.
> Also, will there be GLONASS, BeiDou or other sats in there?  Then maybe
> it should be a GNGSA.

Yes, probably all L1 services (GPS, QZSS, SBASs, and Galileo) and GLONASS.

I have to look where is the NMEA being created. This will probably take a while.

> So what is the delay you see?  Can you identify your model and put in
> the fudge you see automagically?  If not can you add in your
> observed fudge as a comment?

I see delays from 0.028 to 0.5s, depending on device, as specified in
the comments, depending on device, number of visible SV, and probably
firmware versions.

I don't think it is reliable to assume any value, so 0 looks the
neutral assumption.

Thanks,
Nuno



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