Increasing GPS accuracy with EGNOS
Mickael Labrousse
m.labrousse_list at bcmd.fr
Wed Oct 7 11:44:41 CEST 2009
I'll try to check it too.
I'll let you know.
Mickael
Al Johnson a écrit :
> On Monday 05 October 2009, Joseph Reeves wrote:
>
>>> This is probably worth checking to see what is actually happening
>>>
>> when in Europe,
>>
>> Someone tell me what command to run on what distro and I'll let you all
>> know...
>>
>
> If it was going to be that easy I'd have done it myself ;-) AFAIK there isn't
> a simple ubx utility that would allow us to send parameters to the GPS and
> watch for the returning messages, so adding a few lines to ogpsd is probably
> the easiest approach. For anyone who knows their way around ogpsd and ubx it
> should be quick and easy ;-) I'm not that person, so if I get round to it it
> may take a little longer...
>
>
>> 2009/10/5 Al Johnson <openmoko at mazikeen.demon.co.uk>:
>>
>>> On Sunday 04 October 2009, Erik Lundin wrote:
>>>
>>>> Good news, indeed. Does the Neo FreeRunner support EGNOS signals? Both
>>>> the hardware and software?
>>>>
>>> http://www.u-blox.com/en/download-center.html?task=view.download&cid=83
>>>
>>> According to this the Antaris 4 is capable of using WAAS, EGNOS and MSAS,
>>> collectively known as SBAS, and the signal is received through the GPS
>>> antenna. By default it is enabled, with one search channel, although this
>>> can be configured through the ubx protocol. The status can also be shown
>>> in ubx messages. This is probably worth checking to see what is actually
>>> happening when in Europe, as when it was written EGNOS was in test mode,
>>> and its use was disabled by default. It is unclear whether this was
>>> because of a 'test mode' flag in the signal or hardcoding in the
>>> firmware.
>>>
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>
>
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