Re: is my GTA02 getting old?
Buon giorno, Joif, On Mon, Dec 10, 2012 at 12:59 AM, wrote: > I have a GTA02A7, one of those with the buzz (not bass) fix. In the last > months things got worse, the buzz fix seems not be any more effective. After my phone was buzz-fixed, one of the solder connections got loose. A friend of mine (with a steady hand...) re-soldered it, and it was OK again after that. So, open up your GTA02, take a good magnifying glass, and check the connections! Christ van Willegen ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
is my GTA02 getting old?
Hi all I have a GTA02A7, one of those with the buzz (not bass) fix. In the last months things got worse, the buzz fix seems not be any more effective. In particular, during a conversation, there are intermittent background noises, and they become louder and persistent when the GSM signal is low and/or when the battery level is low. Also, it's impossible to me to use the earphones, if I plug them the noises are so loud that I can't even hold a call. Add to this some strange GSM/modem behaviour: whenever I get low GSM signal for certain time, I have to restart the Neo because I loose the phone functionalities (cannot send/receive calls and messages), I don't know why. It happens some times in the underground (metro) and often in trains (once I was doing a long trip, I had to restart the Neo four (4!!) times during it). To date, with some patience, I use my GTA02 as a daily phone but I'm worrying if things get worse. Do you think that is possible to do some hardware check/fix? ..sure I'll not be able to do it, I'm in Italy if someone can help. Best regards Joif ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
On 2012-12-09, at 5:56 PM, "francesco.dev...@mailoo.org" wrote: > >The GTA02 has a pretty good GPS receiver, and the fact that it can do 4Hz is > >critical to our application (Flight Data Monitoring). > >[...] > >I still have a couple of hundred GTA 02s that will eventually be installed > >in airplanes and helicopters. > > > >-Pascal > > If I may ask, what kind of activity is yours? Are you using GTA02s as a sort > of airborne devices.. for what? I had a couple of ideas about airborne > applications, so I'm just curious about it. Thank you. In a typical Wi-Flight application, the GTA 02 is mounted on top of the instrument panel, on the glareshield of the aircraft. Power is a TomTom 12/24V USB and we use a simple Line-Level to Mic Level conversion circuit to capture the pilot's audio jack via the GTA 02 Mic Jack. Ambient audio is captured on a second channel, using the GTA 02's built-in microphone. The result is a full-featured dual channel Cockpit Voice Recorder and Flight Data Recorder that records 4Hz GPS, accelerometer data, ambient audio pitch (via aubio) for propeller RPM determination and optional Baro altitude, rate gyro and magnetometer via NavBoard V3. RS-232 and ARINC 429 could can also be collected via external USB devices. Eventually we will have a Kalman filter to do attitude determination (such functionality is surprisingly lacking at the OS level on all smartphone platforms ). The data is stored on the SD card in various data package types. Upload is to our Cloud-based servers using Wi-Fi but we are working on some GPRS functions and of course full 5.76Mbps on the GTA 04. Upload priority let's us analyze data as quickly as 1 minute after the aircraft shuts down. It's all 100% automated. See demo here (use Mozilla + Google Earth Plug-In): http://www.wi-flight.net/demo.html Flight browser interface: http://www.wi-flight.net/flight/#FFSK Expand the two demo flights here by clicking on the green triangle on the left. We will soon surpass the 30,000 recorded, uploaded and analyzed flights. This project would have been difficult to execute without such an open platform. The product was launched in July 2010 and continues to be improved (the feature request list is never-ending). We also have an API for extracting and pushing various data to our system. See http://www.wi-flight.net/ for more details. Feel free to call to discuss anytime. -Pascal tel +1 (450) 676-6299 mobile +1 (514) 298-3343 ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
>The GTA02 has a pretty good GPS receiver, and the fact that it can do 4Hz is critical to our application (Flight Data Monitoring). >[...] >I still have a couple of hundred GTA 02s that will eventually be installed in airplanes and helicopters. > >-Pascal If I may ask, what kind of activity is yours? Are you using GTA02s as a sort of airborne devices.. for what? I had a couple of ideas about airborne applications, so I'm just curious about it. Thank you. Regards Joif ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
Timo Juhani Lindfors writes: > (it's derived from ogsmd). I mean ogpsd ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
Pascal Gosselin writes: > That's pretty amazing. Tell me more ! I still have a couple of > hundred GTA 02s that will eventually be installed in airplanes and > helicopters. Find the UBX specification. Look at the CFG-RATE command and set navigation rate to 50 ms. I have some code to do this in http://lindi.iki.fi/lindi/git/ubx.git/ (it's derived from ogsmd). ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
On 2012-12-09 3:25 PM, Timo Juhani Lindfors wrote: Pascal Gosselin writes: The GTA02 has a pretty good GPS receiver, and the fact that it can do 4Hz is critical to our application (Flight Data Monitoring). It can do 20 Hz too btw. That's pretty amazing. Tell me more ! I still have a couple of hundred GTA 02s that will eventually be installed in airplanes and helicopters. -Pascal ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: 5Hz GPS operation using the GTA04 ?
Pascal Gosselin writes: > The GTA02 has a pretty good GPS receiver, and the fact that it can do > 4Hz is critical to our application (Flight Data Monitoring). It can do 20 Hz too btw. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
5Hz GPS operation using the GTA04 ?
The GTA02 has a pretty good GPS receiver, and the fact that it can do 4Hz is critical to our application (Flight Data Monitoring). Has anyone succeeded in being able to get 5Hz position updates from the GTA04 with either the W2SG0004i (SiRFstarIII GPS chip) or the more recent GTA04 with W2SG0084i (SiRFstar IV chip ) ? The W2SG0004i apparently uses a SIRF GSC3LTf. According to the datasheet that I downloaded, the Max update rate is 1Hz which is terrible. I'd like to know if there are any hacks to get at least 5Hz (not holding my breath...). The W2SG0084i uses the CSR/SiRF GSD4E. I did find this regarding the W2SG0008i from http://www.wi2wi.com/products/datasheets/W2SG0008i_Datasheet_Rev1.35.pdf "3.5 1 Hz updates with future 5Hz updates The current W2SG008i uses a Sirf Star 4 Signature Series ROM 1.3 which supports 1 Hz updates of the messages from the satellites vehicle solution. In a future release of the internal ROM code version 2.0 and later 5 Hz updates will be supported. Contact a Wi2Wi sales office for future release dates." Almost a year has gone by is this new firmware available for the W2SG0084i ? -Pascal Flight Data Monitoring using the GTA 02 (soon GTA 04) http://www.wi-flight.net/ ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
