Re: [gpsd-users] Support for PPS on 10Hz Devices

[Andrew Yong]

Hello Gary,

> On 3 Oct, 2013, at 5:24 am, "Gary E. Miller" <address@hidden> wrote:
> 
> Yo Andrew!
> 
> On Thu, 3 Oct 2013 02:59:37 +0800
> Andrew Yong <address@hidden> wrote:
> 
>> I’ve left my gpsd running spitting out debug | grep ntpshm for a
>> while; GPSD is accepting the PPS leading edge consistently every
>> second, however I still get this after running GPSD for about an hour:
>> 
>> gpsd:RAW: NTPD ntpshm_put: Clock: 1380740261.000000 @
>> 1380740261.113936, fudge: 0.000
>> gpsd:RAW: PPS ntpshm_pps: no current GPS seconds: -1380740261113936
>> gpsd:RAW: NTPD ntpshm_put: Clock: 1380740262.000000 @
>> 1380740262.124404, fudge: 0.000
>> gpsd:RAW: PPS ntpshm_pps: no current GPS seconds: -1380740262124404
>> gpsd:RAW: NTPD ntpshm_put: Clock: 1380740263.000000 @
>> 1380740263.172770, fudge: 0.000
>> gpsd:RAW: PPS ntpshm_pps: no current GPS seconds: -1380740263172770
>> gpsd:RAW: NTPD ntpshm_put: Clock: 1380740264.000000 @
>> 1380740264.192086, fudge: 0.000
>> 
>> Any idea why this may be? NMEA is coming in at 1Hz.
> 
> Looks like your GPS does not have a lock.  PPS just tells you the top
> of the second, not which second.  That must come from the NMEA.  Do
> you have a good view of the sky and a 3D fix?  Hint: use cgps to see
> your fix and time.

Yep, it has a great lock with 14 satellites detected (3D DGPS fix with SBAS 
satellites). 

Have a clear view of the sky with an external antenna. 

> 
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
>    address@hidden  Tel:+1(541)382-8588

smime.p7s
Description: S/MIME cryptographic signature