Post by thread:[EE] SiRF III GPS

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

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}> 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 > >

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-bouncesTakeThisOuTmit.edu [.....piclist-bouncesKILLspam@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

On Sat, Oct 4, 2008 at 10:39 PM, M. Adam Davis <stienmanKILLspamgmail.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

On Sat, Oct 4, 2008 at 11:27 PM, Xiaofan Chen <.....xiaofancKILLspam.....gmail.com> wrote: > On Sat, Oct 4, 2008 at 10:39 PM, M. Adam Davis <EraseMEstienmanspam_OUTTakeThisOuTgmail.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

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 <listasspam_OUTlogikos.com.br> wrote: {Quote hidden}> 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@piclist-bouncesKILLspammit.edu [KILLspampiclist-bouncesKILLspammit.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.org >

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.