Related
So I've been playing around with the GPS features with BeeLineGPS and GPS Tuner. I'm more interested in gathering data for import into Google Earth or other programs to show where I've been and stats like altitude, speed, distance for biking, running, snowboarding, etc.
I haven't used these programs with any other WM device, but the data from the TyTN looks suspect. The altitude and speed readings are way off, a recent mountain bike ride has me topping out at +250 mph.
So anybody else tried out the GPS for these purposes? BeeLineGPS seems the best so far as it exports .gpx, .kml and .csv files. GPS Tuner has a nice interface but without data export it's kinda useless.
Attached is a file of a data sample from BeeLine, you can import the file at http://utrack.crempa.net/ and see the map on Google and stats (bad stats).
thats probably your the software your using not being compatible with wm6. ive found the TYTN II's gps to be very accurate
dolbe said:
thats probably your the software your using not being compatible with wm6. ive found the TYTN II's gps to be very accurate
Click to expand...
Click to collapse
What software are you using? For the record Google Maps pinpoints the location exactly. I haven't tried TomTom, but I'm not really interested in street navigation.
im using tomtom right now, i plan on testing other gps programs aslo, ive got igo, destinator, route66. ive got to see if i can transfer my gps tuner over to ths mobile so i can test that aslo.
i do try to test as many apps as i can on a new device to see just what i can and cannot use
I'm a software developer and I have written a VB.NET application that runs on WM6 that sucks the raw data from COM4 (the GPS port) and I can also confirm that it is very accurate. (OK, within 2 metres if you want to be precise).
It pumps out a lot of data but the interesting one is the $GPRMC line which shows you mainly your position and speed.
The only gripe I had was when I had the phone brand new it took over 15 minutes to lock and from then onwards about 8 seconds
The 15 min is about the norm, it has to download the entire atlas. It's only once in the device's lifetime, and for some devices it's already done by somebody else trying the device or by manufacturer.
How is Kaiser GPS performance in comparison to a "normal" SiRF Star 3 GPS?
I've heard different opinions on this, some say it has weaker reception, some say its equally good.
Personally after few days of using it looks alright to me + you get the a-gps for quicker fix.
Is it possible to show a screen grab AND/OR a photo of the actual device running a map application?
I use a VGA device and find it very hard to part with it...
let me know what exactly do you want to see and i'll give you the screens.
Tomtom? googlemaps? map? 3D navigation? you must be more specific
Here is iGo in cockpit mode. I'm in the house, so no GPS here but it should give you an idea
I'm working on a full comparison, but yes the good news compared to the HTC Trinity (see http://www.gpspassion.com/fr/articles.asp?id=175&page=6) is that A-GPS really helps shorten the time to fix in the morning and accuracy has improved as well. It still does not handle difficult urban canyon situations as well and tends to "lose it", but that would only happen in extreme conditions.
GPS lock times are amazingly fast for me compared to my HW6945. Started just now in my room and took about 3 seconds for a lock. Love it
Tomtom 6.032
iGo
Google Maps
im in the states and tomtom, live search, and googlemaps works flawless w/o having to install a "jumpstart" app. I prefer tomtom since the maps are preloaded so it doesnt have to use your data connection and also the buttons/screen are finger appropriate. When i load tomtom it finds satellites within 30 seconds and it will even work indoors most of the time.
Has anyone tried National Geographic Pocket TOPO to download maps from their State Topo series to the TILT?
Other than that what outdoor GPS topo software works well with TILT?
Thanks
If you already have the Garmin US TOPO maps the try this thread from post #9.
http://forum.xda-developers.com/showthread.php?t=348003
Hope it helps...
I'm doing it right now, it works except for two small problems.
1 - can't seem to load a map file thats bigger than 5mb,
and 2 - can't get the gps to work. Settings anyone?
GPS Reciever: NMEA ($GPGGA)
Baud Rate: 4800
Comp Port: COM4
This seems to be working for me.
I personally love PathAway. You can load pre-made maps into it, or it can download 'em itself from the net. I suggest you make maps if you're going hiking or somewhere where coverage might be iffy, it's rather easy to do.
I've made maps of many quadrants near my home and places I geocache in case I want to see the ground layout near me. And in a pinch I can download maps OTA.
Hello,
In comparing the altitude reading of the internal GPS with two other GPS recievers (one WAAS enabled) and in knowing the true altitude (at several airports), it seems that the At&t Tilt is always reading about 100-120 feet low compared to the other two receivers and the actual altitude. Have any others noticed this?
I have never seen an accurate or high reading, it has been lower than the the other recievers at every location and test that I have done. I upgraded to the new AT&T HTC Rom as soon as I recieved the phone and do not have data before this upgrade.
Thanks,
John
Docj_Aero said:
Hello,
In comparing the altitude reading of the internal GPS with two other GPS recievers (one WAAS enabled) and in knowing the true altitude (at several airports), it seems that the At&t Tilt is always reading about 100-120 feet low compared to the other two receivers and the actual altitude. Have any others noticed this?
I have never seen an accurate or high reading, it has been lower than the the other recievers at every location and test that I have done. I upgraded to the new AT&T HTC Rom as soon as I recieved the phone and do not have data before this upgrade.
Thanks,
John
Click to expand...
Click to collapse
Sorry I only use the GPS for directions, but, what program are you using to get your reading? 100-120 feet of difference seems like a program issue. Tilt GPS should not be that inaccurate. Maybe you could try a different program and see if you get a different result.
I have used many different programs and they all give the same altitude (the same as that contained in the NMEA string). VisualGPS, NoniGPS, GPS Tuner, GPS Utilities, and others all give the same; hence the confusion.
John
Docj_Aero said:
I have used many different programs and they all give the same altitude (the same as that contained in the NMEA string). VisualGPS, NoniGPS, GPS Tuner, GPS Utilities, and others all give the same; hence the confusion.
John
Click to expand...
Click to collapse
I have seen the same results using a myriad of gps software. I dont have a fix either, just confirming your observations.
Has anyone either noticed this error, or can verify that their unit is in fact agreeing with other gps receivers?
I called tech; they were not much help.
I have the same problem.. I fly a powered paraglider, and I want to plot my path on Google Earth. All of the points end up being below ground, unless I am very high in the sky
I have a 8925 stock rom with APIC on it, I have matched the readings on it to a Garmin 430, now keep in mind the antenna on the 8925 does not have the same sensitivity nor size/location as the 430s. I would not shoot a approach with my 8925, though it's readings (GS, ALT, HDG) match up to the 430.
Also does anyone know if the 8925 can be WAAS enabled?
Altitude calculation is an issue with commercial GPS devices. You can read more here http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=10915
not true, aircraft shoot GPS approaches all the time, a cat II approach has a minimum decision height of 200', so if it is common for a WAAS GPS to be that off, planes would be lawn darting left and right.
That said I have noticed that the vertical navigation accuracy of my non-WAAS 8925 improves greatly when it is at altitude (500' + AGL), now if it was WAAS I would be accurate at low altitudes as well at any airports that supports a GPS approach.
From wikipedia:
The elevation display from the internal GPS will be inaccurate due to it using the WGS-84 Datum which can deviate from mean sea level in the range of +85 to -107 meters. The main reason for this is because the internal GPS uses the data it receives and references it to the Ellipsoid model of the earth which is a perfect shape. Standalone GPSes use the Geoid model of the earth which is lumpy version of an Ellipsoid. Then they apply a correction value based on the present location to supply the elevation.
Click to expand...
Click to collapse
This makes it sound as if it's a hardware problem that cannot be fixed.
Dave
right from the wiki for the htc tilt wikipedia site.... read through but your info will be in the last paragraph of this read.
GPS Compatibility
Users of this phone have successfully installed and used other GPS map software applications (such as ALK Technologies CoPilot Live 7, DeLorme Street Atlas USA 2009, Fugawi, Garmin Mobile XT, Google Maps Mobile, iNav iGuidance, Intrisync Destinator, Microsoft Live Search Mobile, TomTom, Tracky, and VisualGPS BeeLineGPS), which are either free or cost nothing beyond the original purchase price. The map applications are compatible with the built-in GPS receiver, provided users set the appropriate COM port for the map application. The built-in GPS receiver was intended by some wireless providers to be used preferably with Telenav, which is a service that charges users monthly fees or fees based on the amount of downloaded map data. It should be noted that Telenav can only provide map data in areas where applicable cellular phone services are available and that users must have a data plan with their wireless providers.
The GPS may not activate when the phone is used indoors (or without access to clear sky) or if the person is walking very slowly (< 1 mile/hour).[citation needed] External GPS antenna connection provision is provided for clear signal reception. It is important for the GPS to be activated for the various functions in the GPS software to be activated and used properly.
The elevation display from the internal GPS will be inaccurate due to it using the WGS-84 Datum which can deviate from mean sea level in the range of +85 to -107 meters.The main reason for this is because the internal GPS uses the data it receives and references it to the Ellipsoid model of the earth which is a perfect shape. Standalone GPSes use the Geoid model of the earth which is lumpy version of an Ellipsoid. Then they apply a correction value based on the present location to supply the elevation.
Click to expand...
Click to collapse
My gps seems to be (according to Google maps), about 15-20 meters off at least, at most times, while my POD values seem to be (according to BeeLine GPS) at a very reasonable value of around 2 (even less sometimes, 7-10 satellites tracked) which I believe is pretty good, (according to Wikipedia). I don't really have any experience with gps units, so are these values ok? Or is the diamonds' gps crap compared to other units? I do plan to do some geocaching, has anyone tried yet? Is it possible
Since this is not military grade GPS, I believe the accuracy is fairly decent...
the diamond gps seems fine ... , even better , its fast & accurate
I find the GPS in the Diamond picks up more sats and connects much quicker than my Tytn 2
I find the GPS accuracy extremely good, even in the middle of my house, a 2 floor bricked building with double glazing I can easily pick up 6 or more sats in under a min with an accuracy to within 4ft
According to GPS Test, the HDOP usually averages about 0.90 to 1.50 (indoors).
Not sure what rom you are using. i had the same issue with the original shipped ROM WWE HK 1.34, though since upgrading my ROM the issue disappeared.