status of GPS ??? (enabling WAAS on adapt keychain pro)

Hi,


In followup to my earlier question on my adapt keychain pro GPS
receiver/logger.


I'm trying to enable egnos support on it, but I am unable to do so: the
device says WAAS-support is disabled, and I get a precision which is
simular to my other (non-egnos) GPS receiver.
And when I send the command to enable WAAS on the control-port of the
device, the command is refused.


So I would like to know what is not the operational status of EGNOS at
this time.
I read somewhere that some time ago, its messages where still marked as
"in test", so that is the reason most receivers do not use them.
On the other hand, I also read somewhere else that they are transmitting
different messages from different satellites (some as test, others as
operational).

Althou the product specs of this device say WAAS/EGNOS is supposted to
be supported, I do have my doubt it does actually do it.
But before I make a formal complaint to the manufactere, I do want to be
sure the the EGNOS-signals that are transmitted today do are valid.
:-)


Many thanks in advance, and
Cheerio!ç Kr. Bonne.

Kristoff Bonne wrote:

Is there any small print saying that you have to provide the WAAS
signal/data externally? I think this is the case with many GPSs which can do
the calculation but do not have a receiver.

Mike.
--
If reply address is invalid, remove spurious "@" and substitute "plus"
where needed.

Hi Mike,


Mike Coon schreef:


Not that I can see.
http://www.adapt-mobile.com/mobile/detail.php?p_id=481


I found information in the documents that "dold" pointed to which
indicate how you can enable and disable WAAS support ("e.g. A0A1 0003
370100 36 0D0A" to enable); but when I try this the device replies with
a "NACK".
:-(

I also found some information on the net saying there are some GPS
receivers out-there which only return WAAS-information when in binary
mode( so not in NMEA-mode).
Perhaps that's the case here too.


Concering GPSs which can do the calculation but do not have a receiver,
then I'm interested to know how this information is uploaded to the
receiver.
There is a project called "sisnet" which allows you to receive
EGNOS-information from the net, but then the question is how you can get
this info in the GPS.
You probably need some other binary format for that!



Cheerio! Kr. Bonne.