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'[EE] SiRF III GPS - troubleshooting'
2008\10\04@104020 by M. Adam Davis

face picon face
I'm using an Antenova Radionova RF antenna module which includes a
SiRF III chipset:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=627-1019-ND

Unfortunately the data sheet is behind a registration wall at
antenova.com (grrrr...)

It's not outputting any data (TX on oscilloscope) at all - I expected
that even if it were in binary mode it would.  Further it's consuming
very little current (1.2mA) so I suspect it's not tracking at all.
When it powers up it consumes about 50mA, then 28mA, then 32mA in a
period of a few seconds, then drops to 1.2mA

Have you used a SiRF III that acted in this manner?  Can it be
configured to act this way on powerup, and this is normal for binary
mode?

Any input would be helpful, thanks!

-Adam

--
EARTH DAY 2008
Tuesday April 22
Save Money * Save Oil * Save Lives * Save the Planet
http://www.driveslowly.org

2008\10\04@105317 by Carl Denk

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face
Where is you antenna located? Sometimes they will lock on indoors,
usually if near a window. Don't know what, if any signal that unit will
put out if not locked on. Do you have the correct antenna, some are
active, and the antenna lead and connectors could be critical.

M. Adam Davis wrote:
{Quote hidden}

2008\10\04@110147 by Alexandre Guimares

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Hi, Adam.

       Unfortunately I think that module is just the RF front end ! You
need a processor after it with the GPS decoding software !

       At least the was what I undertood when I was looking at using it..

Best Regards,
Alexandre Guimaraes


-----Mensagem original-----
De: spam_OUTpiclist-bouncesTakeThisOuTspammit.edu [.....piclist-bouncesKILLspamspam@spam@mit.edu] Em nome de M.
Adam Davis
Enviada em: sábado, 4 de outubro de 2008 11:40
Para: Microcontroller discussion list - Public.
Assunto: [EE]: SiRF III GPS - troubleshooting

I'm using an Antenova Radionova RF antenna module which includes a SiRF III
chipset:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=627-1019-ND

Unfortunately the data sheet is behind a registration wall at antenova.com
(grrrr...)

It's not outputting any data (TX on oscilloscope) at all - I expected that
even if it were in binary mode it would.  Further it's consuming very little
current (1.2mA) so I suspect it's not tracking at all.
When it powers up it consumes about 50mA, then 28mA, then 32mA in a period
of a few seconds, then drops to 1.2mA

Have you used a SiRF III that acted in this manner?  Can it be configured to
act this way on powerup, and this is normal for binary mode?

Any input would be helpful, thanks!

-Adam

--
EARTH DAY 2008
Tuesday April 22
Save Money * Save Oil * Save Lives * Save the Planet
http://www.driveslowly.or

2008\10\04@112755 by Xiaofan Chen

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On Sat, Oct 4, 2008 at 10:39 PM, M. Adam Davis <stienmanspamKILLspamgmail.com> wrote:
> I'm using an Antenova Radionova RF antenna module which includes a
> SiRF III chipset:
>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=627-1019-ND
>
> Unfortunately the data sheet is behind a registration wall at
> antenova.com (grrrr...)

Hmm, the links by digikey is working here (Firefox under Ubuntu Linux 8.04).
http://www.antenova.com/?id=1229

It is just a two page datasheet.

         GPS RADIONOVA(R) M10214-A1
         RF Antenna Module
         Antenova's GPS RADIONOVA(R) M10214-A1 RF

         Antenna Module is the world's first single package
         solution to combine RF and passive antenna

         on the same module. The GPS RADIONOVA(R)
         M10214-A1 is a flash based highly integrated
         GPS RF Antenna Module suitable for L1-band
         GPS and A-GPS systems. The device is based
         on the high performance SiRFstarIII TM GPS
         architecture combined with Antenova's high
         efficiency complementary antenna technology.
         All front-end components are contained in a single
         package laminate base module for optimum
         performance. The GPS RADIONOVA(R) M10214-A1
         operates on a single 3.6V positive bias supply
         with low power consumption and available low
         power modes for further power savings. M10214-
         A1 is supported by SiRF stand alone software
         and uses a UART as the host processor interface.

         Providing a true drop in solution with the antenna
         and RF in a single package, GPS RADIONOVA(R)
         M10214-A1 offers ease of integration and
         shorter design cycles for faster time to market.
         Applications:
         • Personal Navigation Devices (PNDs)
         • Portable Media Players (PMPs)
         • Personal Digital Assistants (PDAs)
         • Feature phones and Smart Phones
         Features:

         • Low cost single package RF Antenna Module
         • SiRFstarIIITM GPS Chipset Architecture
         • Low current consumption
         • Built-in filter allows co-existence with GSM/
           CDMA/WCDMA/WLAN/BT

         • Resistant to de-tuning


electrical                                 mechanical
Frequency:         1575 MHz                Dimensions : 43 x 9 x 4mm
Supply Voltage     3.6V                                 (w/metal enclosure)
Suppy Current:     30mA
Hibernate Current: 30 uA                   Mounting:    Vertical mount
/ low profile
COM Interface:     UART                                 connector
Output Protocol:   SiRF Binary / NMEA 0183
Temperature:       -40°C to +85°C          Groundplane: 20 x 40mm min

2008\10\04@113156 by Xiaofan Chen
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On Sat, Oct 4, 2008 at 11:27 PM, Xiaofan Chen <.....xiaofancKILLspamspam.....gmail.com> wrote:
> On Sat, Oct 4, 2008 at 10:39 PM, M. Adam Davis <EraseMEstienmanspam_OUTspamTakeThisOuTgmail.com> wrote:
>> I'm using an Antenova Radionova RF antenna module which includes a
>> SiRF III chipset:
>>
>> search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=627-1019-ND
>>
>> Unfortunately the data sheet is behind a registration wall at
>> antenova.com (grrrr...)
>
> Hmm, the links by digikey is working here (Firefox under Ubuntu Linux 8.04).
> http://www.antenova.com/?id=1229
>
> It is just a two page datasheet.
>

Google also found this which seems to be more detailed.
http://www.semiconductorstore.com/pdf/newsite/antenova/M10214-A_PB.pdf

Xiaofan

2008\10\04@125728 by M. Adam Davis

face picon face
Thanks for the input, Alexandre and Carl.  I got it working. For
future reference, don't follow the datasheet!  (well, as usual, I
guess...)

I now get a nice NMEA stream out at 9600.  I was about to type up the
info here, but decided to go ahead and add it to my website so others
can search for it:

http://www.ubasics.com/Antenova_Radionova_RF_Antenna_Module

Includes pictures (oooOOOOoooh!).

Thanks again for all your help!

Now to tackle the 1.8" lcd...

-Adam


On Sat, Oct 4, 2008 at 11:01 AM, Alexandre Guimarães
<listasspamspam_OUTlogikos.com.br> wrote:
{Quote hidden}

>

2008\10\04@135211 by Marcel Duchamp

picon face
M. Adam Davis wrote:
> Thanks for the input, Alexandre and Carl.  I got it working. For
> future reference, don't follow the datasheet!  (well, as usual, I
> guess...)
>
> I now get a nice NMEA stream out at 9600.  I was about to type up the
> info here, but decided to go ahead and add it to my website so others
> can search for it:
>
> www.ubasics.com/Antenova_Radionova_RF_Antenna_Module
>
> Includes pictures (oooOOOOoooh!).
>
> Thanks again for all your help!
>
> Now to tackle the 1.8" lcd...
>
> -Adam

Thanks for the information... if you get further with it and maybe have
performance data, I would enjoy reading about it.

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