[FOSS-GPS] rtknavi vs rtkrcv

[David Kelley]

> If I make it display the satellites, I most of the time don't get any, sometimes 1, sometimes a full set.
Two questions to consider.  This makes me wonder if you are reliability 
getting ephemeris data.  Is that what you mean when you say you can not 
display the satellite?  In the configuration you have created, can you 
describe what is the path over which the ephemeris messages get to the 
navigation filter?

[Aside: It took me quite a bit of trial and error and the help of other 
folks on this list to find out that RTKLIB stores recent past ephemeris 
data in the .ini files.  Sometime a config worked, sometimes it did 
not.  Turned out the data from a recent past run was still present. I 
learned to edit the end of the ini file to remove this when I wanted to 
test out cold starting issues. Perhaps you are seeing something of the 
same sort.

PS these lines look like:
eph_01=G02,38,38,0,0,14460624...0,
eph_04=G05,96,96,0,0,14460......
eph_11=G12,63,63,0,0,1446....  etc.     ]


On 10/30/2015 10:19 AM, Fred Labrosse wrote:
> All,
>
> I have been trying to use the unix applications, after getting good results
> with the Windows ones.
>
> I now have a (unix) server that serves data from one receiver for now and
> if I connect rtknavi (windows) to it in PPP-static I get a fix quite
> quickly.  If at the same time I connect rtkrcv to the same server, the
> result is not so good.  If I make it display the observations (observ 1), I
> do get data that is similar to what I see in rtknavi.  If I make it display
> the satellites, I most of the time don't get any, sometimes 1, sometimes a
> full set.  This seems to be random between stop/starts.  Waiting does not
> seem to help.	If I manage to get a fix in rtkrcv, stop and restart it,
> usually I don't get a fix.  However, if I do the same in rtknavi, I get a fix
> almost immediately.
>
> What have I missed?
>
> Cheers,
>
> Fred
> _______________________________________________
> This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
> Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your subscription
> For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS