Re: TomTom Navigator Bluetooth for Palm
From: Dale DePriest (Dale_at_gpsinformation.net)
Date: 07/27/04
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Date: Tue, 27 Jul 2004 10:41:18 -0700
Ergo Sum wrote:
> "Jens S. Joergensen" <JensSJ@foni.net> schreef in bericht
> news:opsbsuuox3ewei3h@thor.fle.css.mot.com...
>
>>On Mon, 26 Jul 2004 13:28:40 -0700, Dale DePriest
>><Dale@gpsinformation.net> wrote:
>>
>>
>>>
>>>Jens S. Joergensen wrote:
>>>
>>>
>>>>Hi,
>>>> I have just bought the "TomTom Navigator Bluetooth for Palm" for my
>>>>Palm Tungsten T3.
>>>> Configured the Navigator software to use the TomTom Wireless GPS
>>>>receiver and a bluetooth connection is estabslished between the T3 and
>>>>the GPS receiver, but the software displays the following message: "No
>>>>valid GPS signal!"
>>>> I have succesfully connected my PC to the GPS receiver (via bluetooth)
>>>>and was able to verify that data is being transmitted by the GPS
>>>>receiver, but I don't know if the data are valid or not. But I have a
>>>>"feeling" that the data really are invalid.
>>>> Anyone here who knows what the data should look like, or how to check
>>>>whether the data are valid or not?
>>>> Thanks in advance,
>>>> Jens S. Joergensen
>>>
>>>The data is only valid when there is a fix. Take the unit outside and
>>>test it again.
>>>
>>>Dale
>>
>>Hi Dale,
>>
>>just came back from a more extended test drive into the country side.
>>Stopped several times to switch back and forth between different GPS
>>receiver, performing soft resets in between, removing the Bluetooth GPS
>>receiver from the list of trusted devices (the TT Navigator promptly asked
>>for the passkey for the GPS receiver), etc.
>>
>>No joy, still says "No valid GPS signal!". But what I discovered when
>>switching between GPS receivers was, that even though the the correct GPS
>>receiver is selected (and seems to be working) in the TT Navigator it also
>>says "No GPS device!".
>>
>>I'm more and more convinced that the GPS receiver doesn't transmit data
>>that is understood by the TT Navigator, which probably means that the
>>receiver "might" be defective or what do you think?
It sounds like it is sending NMEA data from your test on the PC. The
SiRF chipset has customizable data so I think you should get a copy of
WinFast Navigator from LeadTek or an equivalent program that can change
the sentences sent by the unit. Do a soft reset to keep TomTom from
holding on to the port and try a test program to view the GPS
information on the Pocket PC. This will tell you if the GPS is ok but
there is a problem with which sentences are being sent. Be sure the NMEA
mode is selected and the baud rate is set to 4800. Check my ppc page for
test programs.
Dale
>
>
> Can you choose dataspeeds? Perhaps thats the reason.
>
>
>
--
_ _ Dale DePriest
/`) _ // http://users.cwnet.com/dalede
o/_/ (_(_X_(` For GPS and GPS/PDAs
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