GPS Interference - Touch Cruise ROM Development

I was wondering if anyone can explain why my GPS doesn't work while riding the train.
It works in cars, buses, trams and trolleys. However, in a 200km train ride, I wasn't able to receive GPS signal at all.
I tried to put the phone on the window of the train, there were no clouds above and the phone was at some points connected to a laptop by usb to recharge.
Does it have anything to do with the electrical wires used by the train to run?

ovidiaconescu said:
I was wondering if anyone can explain why my GPS doesn't work while riding the train.
It works in cars, buses, trams and trolleys. However, in a 200km train ride, I wasn't able to receive GPS signal at all.
I tried to put the phone on the window of the train, there were no clouds above and the phone was at some points connected to a laptop by usb to recharge.
Does it have anything to do with the electrical wires used by the train to run?
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Did you have a fix before you aboard on the train ?

sedde said:
Did you have a fix before you aboard on the train ?
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it means, did you have connection with the satellites before entering the train?

ovidiaconescu said:
I was wondering if anyone can explain why my GPS doesn't work while riding the train.
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Because the windows often are tainted with metallic particles (sun heat protection) and they do not let GPS signals through.
Sascha

Kimma said:
it means, did you have connection with the satellites before entering the train?
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LOL, i thought he was asking me if I was high
I had connection till about 50 meters before entering.
SaBo said:
Because the windows often are tainted with metallic particles (sun heat protection) and they do not let GPS signals through.
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This has to be it.

Related

why does it take so long to get gps-signal?

hey guys,
i have a little question,
i just bought a haicom gps receiver and use tomtom 2 software. When i get out of my garage, it takes always more than 15 minutes to get a signal. sometimes during driving i also lose it. How comes?
when i connect my device to the receiver and power, i get something like "connecting to t-mobile MMS"...
oh, btw i have a MDA II with latest NL t-mobile rom. 1.60....
if anyone could help please...
thanks!
The gps should only take this long when first used, after that it should lock in a matter of a couple of minutes, to test the gps properly it is best to test it outside the vehicle, I think most Haicom mouse gps come with magnetic base so stick it on the roof and drive around, if it works better it is probably becuase your car has a metallised windscreen which blocks the signal. The message about connecting to the service provider is an error due to the com port being accessed i think, mine used to bring up activesync every time but once I canged my activesync settings on the xda to manual instead of auto sync it solved the problem.
so i should always drive around with my window open?? and stick the receiver outside the car?
I would agree with Crusin Through - I think your car may well have some form of heated windscreen or heat reflecting windscreen. What car do you have.
If when you do place the receiver on the outside of the car you do get good signal you can get a special anntenna that had an outside part and an internal part that you can fit permanently to the car so you can still move the thing about. Bit like a mobile phone antenna.
Alternatively as you have the XDA II you can get a bluetooth receiver an place it on the rear parcel shelf (I think the wider heating strips won't affect it - but can't confirm it.)
John, I wasnt suggesting you drive around with your window open, I was suggesting a way to ascertain if your windscreen is the problem regarding your blocked gps signal, by the way I have used a gps on the roof and the window will shut almost all the way however as the last post mentioned you can obtain a re-radiating antenna, this will solve your problem if indeed the windscreen is the culprit.
Re-rediating antenna - that's the word I couldn't remember :lol:
ok guys, thanks. i'll try with such an extern antenna.
thanks for your help
Before you spend your money on the re-rad antenna - try the thing on the roof - if this works then the antenna is your only real option if you want to continue with the thing in the front windscreen.
I'd hate you to buy the re-rad and then find it doesn't work.
Incidently what car do you have? (Does it have a heat reflecting or headted windscreen)
And if it works outside,
you still don't have to buy an external antenna, as normally the windshield have an area where is not metal coating...
try to check the manual of your car..
i own a toyota Camry 2002 model, it has indeed a windscreen etc...

Is the Wizard able to be used as a garage door opener?

I may be crazy but is this possible? Is there a program availible that lets you specify a signal code or something to be used as a garage door opener. That would be really handy!
I know it is a "wizard" but there is only an IR transmitter in the thing. There is no universal RF transmitter that could communicate with anything other than cellular towers. So there's no way to operate it unless you've got a door opener that can take commands over IP.
There is no universal RF transmitter that could communicate with anything other than cellular towers. So there's no way to operate it unless you've got a door opener that can take commands over IP.
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I kinda didn't think so. But I saw a setting about Broadcast channels and just had the idea. What is that setting for?
It's probably referring to Wifi and BT channels.
Think of it this way. . . if it were that easy to duplicate, anybody could have access to your garage.
the broadcast channel settings is a text based communications with your service provider to allow news and general mish mash of information it is a fairly old sevice from mobile operators.
its a shame you cant get yourself a garage door opener that is bluetooth enabled with a software application that would do the job for you :wink:
but you nevber know someone out there may be doing just that!!
This article at Engadget should do the trick. It takes a good amount of work to get it done though.
hahaha, this has got to be one of the most bizarre questions I have ever seen asked on any board. Ever. :lol:
Thanks for the info. Don't know how I though of it but come on, how cool would it be to have your phone, web browser, TV remote, and garage door opener all in one?
Sure you can use the Wizard to open your garage door. You can use the latest version of Novii remote control to do that. Even though i haven't tried to open a garage door, but i did try on TV, hifi, air-conditioning, DVD and they all work fine. If you can't find it in the data codebase, you can teach your Wizard to learn how to open it, see the link here
http://www.novii.tv/pocketpc/deluxe/
nomanland said:
Sure you can use the Wizard to open your garage door. You can use the latest version of Novii remote control to do that. Even though i haven't tried to open a garage door, but i did try on TV, hifi, air-conditioning, DVD and they all work fine. If you can't find it in the data codebase, you can teach your Wizard to learn how to open it, see the link here
http://www.novii.tv/pocketpc/deluxe/
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Click to collapse
I don't think you fully understand what your suggesting there...
Garage door openers are RF, not IR...
If it was IR what's to stop any lowlife scum from recording the signal from the remote, and opening the door themselves
Nice to see people try to take this concept seriously tho, I bet you could prolly make an RF transmitter to pop in the miniSD card slot, then create software to interface with it...
Or to keep things simple, tape the remote to the back of ure pda
nomanland said:
Sure you can use the Wizard to open your garage door. You can use the latest version of Novii remote control to do that. Even though i haven't tried to open a garage door, but i did try on TV, hifi, air-conditioning, DVD and they all work fine. If you can't find it in the data codebase, you can teach your Wizard to learn how to open it, see the link here
http://www.novii.tv/pocketpc/deluxe/
Click to expand...
Click to collapse
What kind of range are you getting? I thought the IR transmitter inside Wizards was the low power/short range kind where it would only work a few inches away from what you're trying to control...
nomanland said:
Sure you can use the Wizard to open your garage door. You can use the latest version of Novii remote control to do that. Even though i haven't tried to open a garage door, but i did try on TV, hifi, air-conditioning, DVD and they all work fine. If you can't find it in the data codebase, you can teach your Wizard to learn how to open it, see the link here
http://www.novii.tv/pocketpc/deluxe/
Click to expand...
Click to collapse
What kind of range are you getting? I thought the IR transmitter inside Wizards was the low power/short range kind where it would only work a few inches away from what you're trying to control...
Nice to see people try to take this concept seriously tho, I bet you could prolly make an RF transmitter to pop in the miniSD card slot, then create software to interface with it...
Or to keep things simple, tape the remote to the back of ure pda
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Click to collapse
hahahaha thanks for the ego boost
What kind of range are you getting? I thought the IR transmitter inside Wizards was the low power/short range kind where it would only work a few inches away from what you're trying to control...
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Click to collapse
3m is the most it can get!
3m is the most it can get!
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Yeah, I'm getting around 7ft but I heard an IR range extender may help??
I'm sure that it could be solved with cables and chewing gum. MacGyver!!! Help us!

using gps within an airplane

Has anybody made experiences in using the gps within airplanes/airliners? Does the sensivity suffice to work within an airliner? During a flight as a passenger I would like to follow the flight with a moving map.
Unless you get a very lucky spot near the window it won´t work...... Tried it in several different spots in a B767 cockpit - even at the only spot where my bluetooth mouse had some reception it did not work.....
Just use the airshow (the moving map) that´s provided on the screens in the seats in front of you by most airlines.....
so-so
Iwan24 said:
Has anybody made experiences in using the gps within airplanes/airliners? Does the sensivity suffice to work within an airliner? During a flight as a passenger I would like to follow the flight with a moving map.
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Well, it's really difficult.
As has been said, the first thing you need is a good spot IN A WINDOW.
Then you have to be on the right side of the plane, to pick the most of the sky were the satellites for your current hemisphere are.
And finally a lot of patience, since picking the sats moving at 500 knots takes A LOT OF TIME, even with the latest SIRF-III mouse antennas, not to mention the Trinity embedded one....
I had a good lock today in my last flight, but as said, one of the inconvenients is that as soon as you move your PDA out of the window, you lose the GPS fix. A flying aircraft is a Faraday box, this is why the antennas are so visible and prominent OUTSIDE of the airframe.
Enjoy your flight and relax, the in-flight show moving maps are linked to the airliner built in GPS, and have a better database than anything you might install in your PDA.
And last but not least, you may be queried by flight attendants to verify you are not "transmitting" while in-flight.
Hope it helps.
2 weeks ago, on a plane to London (Ryanair), nobody was allowed to use any electronic device, including digital cameras, PDA's, mobile phones, whatever... The crew was not willing to negotiate at all: "Excuse me, sir, you MUST turn that off or I will have to take it from you. Do you understand?"
it depends....
dubart said:
2 weeks ago, on a plane to London (Ryanair), nobody was allowed to use any electronic device, including digital cameras, PDA's, mobile phones, whatever... The crew was not willing to negotiate at all: "Excuse me, sir, you MUST turn that off or I will have to take it from you. Do you understand?"
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Company policies regarding the use of electronics devices varies from one company to another, even sometimes at Captain's discretion or even Purser "opinion".
Most airlines have written policies about the use of devices, some even to the detail of mentioning Bluetooth and WiFi devices (usually forbidding its use). Check their Web page or the in-flight magazine.
As a general rule, ANY transmitter must be disconnected from doors-closed to doors-open, and then electronics devices may be used ONLY while in the "cruise" phase of the flight.
Hope it helps a bit.
Depends on airline
It is a policy for the individual airline and most do allow.
See http://gpsinformation.net/airgps/airgps.htm
There is a good article on the subject at this link. http://gpsinformation.net/airgps/gpsrfi.htm
Iwan24 said:
Has anybody made experiences in using the gps within airplanes/airliners? Does the sensivity suffice to work within an airliner? During a flight as a passenger I would like to follow the flight with a moving map.
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Click to collapse
just need to be close enough of one window...
Tomtom got a bit lost
You should not drive that fast
jeje2 said:
You should not drive that fast
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or I need to have a faster CPU to calculate directions quicker
michi123 said:
Unless you get a very lucky spot near the window it won´t work...... Tried it in several different spots in a B767 cockpit - even at the only spot where my bluetooth mouse had some reception it did not work.....
Just use the airshow (the moving map) that´s provided on the screens in the seats in front of you by most airlines.....
Click to expand...
Click to collapse
I made good experiences with an SIRF-III mouse connected to a laptop. While sitting on a window seat, of course. But it depends very much on the type of aircraft. Within an Avro RJ85 the reception was excellent (up to 10 sats). On an A320 or B737 it was rather poor. I could imagine that the fuselage of the RJ85 is made of CFK and not aluminum.
I did also have luck on my flight from Sydney to lax. But google earth shows the altitude from my gps picture at 0 feet. That's one low flying 747-400...
dubart said:
2 weeks ago, on a plane to London (Ryanair), nobody was allowed to use any electronic device, including digital cameras, PDA's, mobile phones, whatever... The crew was not willing to negotiate at all: "Excuse me, sir, you MUST turn that off or I will have to take it from you. Do you understand?"
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Click to collapse
Your lucky if they even let you go to the loo on a Ryanair flight, let alone actually do something slightly interesting. Ryanair is like riding in a cattle truck only less comfortable!
TouTaFon said:
just need to be close enough of one window...
Tomtom got a bit lost
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i've been able to track miles per hour on my trinity while flying on a 777, however, i don't know how to take a picture such as yours. did you use a screen capture tool?
yep, i'm using vSnap, very basic features but pretty convenient
solmanic said:
Your lucky if they even let you go to the loo on a Ryanair flight, let alone actually do something slightly interesting. Ryanair is like riding in a cattle truck only less comfortable!
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Yeap, you're right. I somehow managed to get thru 2 hours of flight without a loo or a PDA, he he. And you're right about a cattle truck but it's incredebily cheap!
T.A.P. (airplane company) Allowed the use of a BT Gps:
It was not me, was a member from http://www.pocketpt.net
Can be found: http://www.pocketpt.net/forum/index.php?showtopic=14957&view=findpost&p=83697
TomTom on my Trinity in a jet
took these while traveling from city a to city b... the streets, etc. were going by so fast that the names would just flash and disappear...
Tried Trinity GPS on Iberia flight from MUC to MAD. Had a windows seat (lhs). Fix took 5mins. or so ... probably almanach had to be downloaded. Never got mot than 4 sats...
mfg OK
As a trainee helicopter pilot I have played around with an application called PocketFMS. I imagine it could be a pretty daunting program if you don't know what some of the jargon or abreiviations mean. I've tested it on the road (not used in the helicopter yet though) and it works great.
It even shows my altitude increasing when I drive up a large enough incline.
You need to get at least 3 satellite fixes for it to work, two for position and a third for altitude.
http://www.pocketfms.com/2-downprog.asp
Gentlemen, maybe I'm missing something, but if you comply with airline regulations and turn the Trinity to Flight mode, it turns off ALL radios: GSM/UMTS, BT, WLAN and GPS. Is there a trick to keep GPS working? Or you just don't comply

GPS on Wing

I know this might be stupid question to some of you, and I've been searching through threads the last two days, non-stop, but I can't find anything about getting my GPS to work with my Wing. They have the antenna plug in on the back side, and so I bought a wired antenna to plug into it, but it won't work. I'm trying to use Google maps, and I've also tried to use LiveSearch and Nav4All... Is there something I need to do? I've literally gone through every single setting (com ports and baud rates) to try and figure out which one it was, but it's not working. HELP PLEASE! I'm so frustrated. If someone could either point me in the right direction or help me figure this out, I would really really appreciate it. Thanks so much in advance!
Justin
smithjustin8 said:
I know this might be stupid question to some of you, and I've been searching through threads the last two days, non-stop, but I can't find anything about getting my GPS to work with my Wing. They have the antenna plug in on the back side, and so I bought a wired antenna to plug into it, but it won't work. I'm trying to use Google maps, and I've also tried to use LiveSearch and Nav4All... Is there something I need to do? I've literally gone through every single setting (com ports and baud rates) to try and figure out which one it was, but it's not working. HELP PLEASE! I'm so frustrated. If someone could either point me in the right direction or help me figure this out, I would really really appreciate it. Thanks so much in advance!
Justin
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Click to collapse
I'm not 100% sure but the antenna connection is for a GSM antenna for boosting the reception while in a car it's not for GPS.
GPS connections a set thourgh bluetooth via a "GPS mouse".
i believe you have to get a bluetooth GPS receiver, they are pretty small and you can just put it on your dashboard or something. i don't know the pricing though
GAMBIT999 said:
I'm not 100% sure but the antenna connection is for a GSM antenna for boosting the reception while in a car it's not for GPS.
GPS connections a set thourgh bluetooth via a "GPS mouse".
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Well, Poopoo. I could have sworn I read somewhere that it was for GPS. Darn it all. Well, guess there's $30 down the drain.
I can confirm that, its for GSM, using it on the external antenna of my car.
smithjustin8 said:
Well, Poopoo. I could have sworn I read somewhere that it was for GPS. Darn it all. Well, guess there's $30 down the drain.
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If your looking for GPS for your Wing check out this site. www.buygpsnow.com
Fair warning tho, there are plenty of people that have gotten there GPS from there and had no problems, but I ended up having to shop mine back becauise it was faulty. There CS is so-so. good luck
it probably said it's for GPRS... not GPS.
Antenna connector on back of Wing
Using the right cable, antenna and booster, you can boost the signal to a full 3 watts like the old bag phones. I've got mine hooked to a wilson and a yagi -- when I'm home I tether to my Laptop and use Internet Sharing and its as fast as T-Mobile allows.
http://www.wilsonelectronics.com/
I got a bluetooth gps from ebay, its a Holux m1200, around 50 bucks and it works great along with iGo program on my phone, its awesome!
Wow, didn't even know I could turn my phone into a GPS piece. So if I get the bluetooth GPS piece and a program, I can have it? How's the accuracy and how well is the software updated? I know there's a lot of new development around and wasn't sure if it's like Mapquest where it's a crap shoot if it'll find where you're going.

Fix low compass accuracy on Google Maps

Hello, friends I have a android head unit, from Ekiy, android 10 and is having issues with the compass.
How I can calibrate it, because as Google says it's not possible.
Any ideas?
What does reseller suggest when contacted for support
marchnz said:
What does reseller suggest when contacted for support
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I'm waiting on an answer
ElShaman said:
I'm waiting on an answer
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Where is the GPS antenna mounted?
You need to make sure that no metal is above the antenna and your wind shield should not have a metal vaporized sun protecting.
Search for an app called GPS Test in the store and do the AGPS update, which connects new to the available satellites and refreshes the GPS data.
rigattoni said:
Where is the GPS antenna mounted?
You need to make sure that no metal is above the antenna and your wind shield should not have a metal vaporized sun protecting.
Search for an app called GPS Test in the store and do the AGPS update, which connects new to the available satellites and refreshes the GPS data.
Click to expand...
Click to collapse
Is mounted on the inside of the door frame...
Ok thanks, I will and let you know..
rigattoni said:
Where is the GPS antenna mounted?
You need to make sure that no metal is above the antenna and your wind shield should not have a metal vaporized sun protecting.
Search for an app called GPS Test in the store and do the AGPS update, which connects new to the available satellites and refreshes the GPS data.
Click to expand...
Click to collapse
Still low...
When I hi calibrate this what it shows it can't be done
ElShaman said:
When I hi calibrate this what it shows it can't be done
Click to expand...
Click to collapse
Why do you think you would be able to calibrate you head unit???
ElShaman said:
Is mounted on the inside of the door frame...
Click to expand...
Click to collapse
Why inside of a metal door? Sorry, but you need a metal-free view to the sky, on top of the dash as example.
Exception is a metal vaporized wind shield...
GPS test shows an accuracy of 5m, so nearly perfect. Just the reception of the satellites is a bit poor, so change the position of your GPS antenna.

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