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Re: [gpsd-dev] PPS over USB


From: Dave Taht
Subject: Re: [gpsd-dev] PPS over USB
Date: Wed, 2 May 2012 13:09:54 -0700

the ublox 6 has a special mode for single sat operations.

On Wed, May 2, 2012 at 1:07 PM, Chris Kuethe <address@hidden> wrote:
> On Wed, May 2, 2012 at 12:53 PM, Gary E. Miller <address@hidden> wrote:
>> On Wed, 2 May 2012 07:11:07 -0500 Jim Thompson <address@hidden> wrote:
>>> tl;dr: One bird won't do.
>>
>> And in fact gpsd knows this and refuses to use the time until several
>> 2D fixes have been sent from the GPS.  That is per the Garmin
>> recommendation.
>
> I should probably test gpsd's opinion on this.
>
> I have a few timing receivers that will, after running a site survey,
> operate with only a single PRN in track. I believe the NMEA output
> claims it's operating in 3D mode, and there's some status bit in the
> binary protocol to say "well, actually it's in fixed-position timing
> mode"
>
> --
> GDB has a 'break' feature; why doesn't it have 'fix' too?
>



-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net



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