Hi,
Does anybody know about a working bluetooth TMC-receiver for Leo? I need only TMC but I'm not really sure what I should buy. Maybe anybody of you has a working one - please tell me which one.
Big THX in advance!
de Wolfe said:
Hi,
Does anybody know about a working bluetooth TMC-receiver for Leo? I need only TMC but I'm not really sure what I should buy. Maybe anybody of you has a working one - please tell me which one.
Big THX in advance!
Click to expand...
Click to collapse
HI, it´s possible to use the inside radio to recive tmc signal. But only with the cableheadset.
Is it already possible also with HD2? Last time I tried (3 days ago) hyperGPS was not suitable for HD2.
No, it is not yet possible to do so... I am waiting for this too...
De Wolfe: check gns-gmbh.com/index.php?id=80
GNS TrafficBox Plus FM9BT-C or its identical clone Navilock NL-324BTR (comes a little cheaper). Tested with HD2 + Navigon 7.3.6 and 7.4.0 PDA.
No HyperGPS/proprietary TMC yet.
I've tried Hypergps with my HD2 with no success
The starnge think is that Igo8 discovered TMC when Hypergps was set to port com 7 and GNS protocol. Unfortunately there was no way for me to set the correct FM frequency for RDS
TMC working with external BT GPS/TMC receivers
I got my new HTC HD2 a week ago. Igo8 runs exceptionally fast. I wanted to still use TMC data as well as I have paid for it (naviextras) and am used to it on my Pocket PC's (ipaq 3970, 5450, 5550 and 4700). I tried the HyperGPS route with the headset lead (you definitely need to plug a lead in to act as FM aerial). The only way I get TMC information working is to use either the GNS BT GPS/TMC receiver (GNS5843) or the Royaltek (RTG1001). I can either use internal GPS of HD2 (port 4 baud rate 57600) and get TMC from the BT GPS on port 2 at baud rate 57600. Port 2 seems to be the only option you get when you add (pair) the BT GPS devices and pick an external GPS port. I intend to generally use the internal GPS, but when in the car and going some distance or in bad weather if necessary will switch on the GNS 5843 go to igo8 setting/TMC pick GNS (protocol) port 2 and baud rate of 57600 (even though the manual says 38400). I get the message TMC Hardware detected and off It goes searching for RDS signals of the FM transmissions and extracts the TMC codes to integrate with your map and route. I have my GPS/TMC device semi permanently in the car (using velcro pads) by the windscreen or sun roof to get a better view of the sky for the satellites and the aerial suckered to the top of the windscreen so as not to have the FM signal blocked by the metal of the car's metal frame. Be aware that if you have a car with the 'athermic' windscreens that this will weaken all radio signals to your device (satellite, mobile & FM/RDS).
I better mention that I am in Northamptonshire in England in UK. You need to be in area that is covered by TMC carrying radio stations (non BBC), example are Classic FM and leicester sound, Heart FM, etc. etc..
Dear Mr de Wolfe
I use the "GNS TrafficBox FM9BT-C - Bluetooth TMC / TMCPro Empfänger mit KFZ zu USB Adapter" wich is a bloetooth tmc-module built in a car-charger.
It works pretty good, signal is ok with the short antenna and is very good with the cable-antenna. The charger is strong enough for the HD2 (wich is mentioned as problem in the comments of the website)
I got it from here: "http://www.pdamax.de/?art_nr=gn-003"
Greetings from Bavaria
esociarius
I can confirm the gns 5843 working. but i do have, after activating bluetooth, to connect the com2 manually. only activating bluetooth does not do the trick. the gns unit is paired but com2 does not connect. so igo does not find the tmc signal.
after manually connecting com 2 it works like a charm.
little annoyance and would like to find solution for it. if anyone knows.
example of sys.txt tmc setting for HTC HD2
I think you can get around this by adding some text to the sys.txt file under title of TMC and you state com port. Port 2 in our case.
[tmc]
port="" - comma separated port name and port number pairs for ex. "COM,1,COM,2,COM,3"
source="" - if it is not specified then the program tries to autodetect or the possible strings are
gns
royaltek
amaryllo
samsung
opentmc1
opentmc2
ngalik
eten
harman
gps_source= - 0 if the GPS and TMC receivers communicate on different ports, 1 if they share one port (for ex. GNS 5843 or Royaltek RTG1001)
But then it will always look for the BT GPS unit. Personally I prefer to switch the TMC section on only if I think I need to when in the car on a longer journey. So I use HD2's internal GPS (port 4) and external TMC (port 2 from GNS5843) Like I went to London on Friday (100miles away). Only in the centre of Canary wharf did the signal become confused. This would be because of the tall, close, glass and steel buildings making multipath GPS signals and only a small and narrow view of the sky immediately above. That is the situation when you put your BT GPS receiver at the sunroof glass looking straight up at sky instead of forward at the buildings blocking the signals from orbit.
Were you using your GNS GPS/TMC device for both signals or just the TMC? The above should cure your problem if you only use the GPS/TMC BT device on port 2.
I am using the internal GPS and bluetooth only for TMC. never had a prolem with lack of sattelite signal of the internal GPS in my car, so have no reason to use it other way.
I agree that the internal GPS receiver in the HD2 is very very powerful (sensitive). I get all 12 windows full of GPS signal even in the middle of my house and accuracy listed as 'high'. But I was just giving an insight to the worse case scenario I had the other day was in the middle of Canary Wharf because of the tall buildings . it would be the only place in the UK with the worst conditions for satellite reception.
The ideal and cheapest solution, for everyone, will be the solution for HyperGPS to work on HD2 with the 3.5mm aerial/headset lead plugged in. I even get a good FM signal through the 3.5mm to 3.5mm lead to connect HD2 to the audio input to the car system. If someone gets or sees the HyperGPS working on the HD2 for igo8 do please let us know. Thanks! in advance.
P.S. by the way ....where is this web site based? I just put this on at 1856 yet it displays at 0656. This site would therefore be ½ way around the world...... Ah! I just noticed there is the pm after it.
Just got my Navilock NL-324BTR. Paid just over £50 from Amazon.de. All is working well. The only niggle I have is that when iGO8 opens, it asks me to confirm the port that I want to use. If I do not select the port then hit "select" in time, the option screen disappears and it does not start.
Anyone any solutions?
To get that screen back you either just tap the BT button to get to that screen again or minimize Igo8 and tap start then Bluetooth then select your device. (I have moved the BT icon to the top (tap and hold) of the HD2 screen.
tomtom
Does anyone know whether there are any workarounds to use any of these tmc receivers with tomtom on the hd2. If not, can someone who used both tomtom and recent Igo give a short pros and cons of the two? I used Igo about 3-4 years ago and I did not like it plus I became used to tomtom.
what is reception quality of gns trafficbox tmc receiver?
Hi,
i am topaz (HTC touch diamond 2) owner and can use hypergps, however i find fm reception of topaz builtin tuner quite poor for tmc needs. In my citroen c5 (worst car for all sort of signals due to its athermic windscreen), tmc reception is poor. I have experimented with various antennas connected to extusb connector, however no real success.
I tried to get magnetic mount fm antena for car roof, but there isnt any available?!
Out of desperation i am now conisdering GNS traffic box (to many $$$...). As i understand there are two versions: lighter plug and external antenna version (both BT). I would buy one of these, and lighter plug seems practical, however i am afraid, that it would have poor recepetion due to athermic windscreen.
tomi
Hi tomi,
I have the GNS for the lighter-plug. The reception in my car (Ford Mondeo) is excellent with the long antenna and not bad with the short antenna - but in your case: I would buy the internal module, which is connected to the antenna of the car-radio, though you cannot take it out of your car.
Best regards
esociarius
Hi mihaid,
I have Tomtom on my second device, but I think there is no possibility to connect a tmc-module to tomtom - they want to sell their own tmc over internet-connection. This was one of the reasons, why I went back to Navigon, which works great on the hd2 (though the Navigon-support is poor).
Best regards
esociarius
For those with athermic front windscreens, place your BT GPS or TMC devices on the rear parcel shelf or attach to a sun/moon roof if you have one. An alternative position if you are a bit DIY is to place under the plastic in the aquarium between the bonnet and windscreen (usually has the windscreen wiper parts there too, needs power and insulation/ water proofing provided) tuck aerial along windscreen rubber).
Related
I am thinking of getting an XDA to use incar for GPS. I have read some articles on this site but they all seem to approach the problem half way through. Can anyone suggest the best GPS device, cradle, software and anything else that is needed
thanx
gps for xda
try www.routeplanners.co.uk, or www.tomtom.com for the superb TomTom Navigator2 packages for XDA.
Good luck Chop!
You can try also:
http://www.pharosgps.com/products/phone/c_siemens_ppc.htm
There is plenty of useful information on:
http://www.pocketgps.co.uk
Zed,
I would consider buying one of the new generation XDA's (XDA II). They are supposedly equipped with bluetooth. The main advantage with this would be the possibility to buy a bluetooth GPS mouse, or a standalone bluetooth enabled GPS reciever.
The problem with the non-bluetooth GPS mice is their need to use the serialport at the bottom of the device to communicate. If you wan't a car mount kit with amplified speaker built into the back of the cradle, they are only sold as powered mounts which use the serialport for charging.
Thus you would have to use the GPS mouse with charging capabilities and let the charging dongle for the mount with amplified speaker hang loose.
Or you could buy a car mount without power, but then you would not have the amplified speaker functionality.
The amplified speaker functionality is great for spoken directions from some the map softwares available.
Here's a link to a car mount with amplifying speaker:
http://www.arkon.com/CM530.html
I have bought one of these, but I have not recieved it yet.
If you want a review, take a look at:
http://www.pocketpcpassion.com/forum/showthread.php?s=&threadid=29460&highlight=car*+mount
Here's a listing of GPS'es with prices and links:
http://www.gpspassion.com/en/hardware/gpslist.htm#Mouse GPS Receivers
GPS RECEIVER FOR XDAs
Have got a xdaII;
I first tried Tomtom bluetooth but often ecounter no power for long distance travelling. I sold it afterwards and switched to a wired solution with in car charger. It is perfect.
Details. pls. refer to the link below. It also works with Orange SPVM1000, Imate, MDA, IPAQ etc.
http://shop.wangtao.co.uk/info.aspx?ads=gps
Wish you will be successful in chosing one best suitable for you.
Your profile doesn't say what country you're in, and the answer varies by location. In the USA, Routis is a top-notch application for navigation. Pharos is absolute garbage. Deluo, the company that makes Routis also makes a very nice GPS receiver that works well with the XDA I and XDA II.
Bluetooth GPS receivers are rather silly, in my opinion. Totally pointless, since you need to power both the PDA and the GPS, so...you might as well wire them up. The Deluo kit has a nice arrangement with a lighter socket and a single cable up to the device to carry both power and the GPS data.
I would like to know how you get on with the Arkon, I have the same one and it is unusable, every time the phone changes to a different cell you get that doomp-de-doomp sound, when the phone rings the noise from the speaher due to direct rf breakthrough is absolutely atrocious and makes the system unusable.
I thought I would add my tuppenyworth to the Tomtom problems with the XDA 2i. Bought a wired Tomtom "Official" GPS receiver for it and tried it with TT5 to no avail. It would not recognise the receiver at all no matter how I tried to specify it's com ports etc..
I eventually upgraded to TT5.1 and it worked immediately with no problems at all. Been working fine ever since.
if it matters
hi, i have a xda 2i and use tomtom 5.20, when i use my wired gps i was told to switch off the infra red beam, mine seams to work like that.
port problem?
could anybody help? my xda2i never works with tomtom5...
how to switch the beam off pls??
switch off receiving beam????
under setting > connections > beam
O2 XDAIIi with tomtom 5.21 and BT GPS receiver
but there is still problem with the signals, it can display the right UTC time, and numbers of satellites, such as 29 on the North, but there all gray and said no valid GPS signal!
the com ports couldn't be changed which are com5 inboard, com6 outboard.
does anyone know what the proble is pls??
ps: I installed the BTHTools1100, but no change
see the attachment pic
many thanks
Hi Piers,
i've got exactly the same problem :-(.
With a GlobalStar BT348, the GPS signals are plainly perfect. But when i connect the official Tomtom wired receiver, i only get the grey bars, although, like you, the UTC and spinning wheel are there, indicating the GPS is detected.
I looked at the compatibility list on the Tomtom site, and besides Dell and iPaqs, there seems to be nothing compatible with the wired receiver.
Anybody has other information?
Hi again,
I think I found the solution
1. of course, "receive all incoming beams" has to be off
2. apparently, you can not have a paired BT GPS receiver (even inactive) when you want to use the wired Tomtom receiver... :shock:
I guess it has to do with the way WM2005 deals with GPS... :?:
So, in BT devices, delete the partnership with the BT receiver and everything works fine with the wired one. In TT5, simply declare the receiver as a wired Tomtom
I used it this morning, driving 100km, 90minutes, without a crash or anything
Hi there,
Has anyone made a TMC device working on the Athena?
I tried some version of the GNS FM9 adpaters but nothing worked.
Any ideas?
Thanks in advance for your help!
Have a good start into 2008.
greetz,
DAx
I agree - this would be very useful. I have iGo on my Ameo and it is brilliant (cant wait for iGo 8 or MioMap 2008 for the 3d visuals and road names) but it would be even better if I could get warned of upcoming hold ups on the major roads!
adamelphick said:
I agree - this would be very useful. I have iGo on my Ameo and it is brilliant (cant wait for iGo 8 or MioMap 2008 for the 3d visuals and road names) but it would be even better if I could get warned of upcoming hold ups on the major roads!
Click to expand...
Click to collapse
Hi,
just a question from my side:
I'm currently using igo with my Ameo and I have to wait and wait and wait and wait for the first GPS fix. It takes normaly between 5 and 15 Minutes until the first fix, even if I use the Quick-GPS Tool that comes with the Ameo. After that, everything works fine. How long does it take with your device and igo?
If I use my GNS GPS receiver (http://www.gns-gmbh.com/de/30_5843.php) I need only a few seconds until the first fix. And it supports TMC!!! I've searched a lot around to find another / cheaper solution to use TMC with the integrated GPS receiver, but I didn't find a working solution, so i decided to buy the GNS GPS receiver....
Regards
Andreas
AndreasF said:
Hi,
just a question from my side:
I'm currently using igo with my Ameo and I have to wait and wait and wait and wait for the first GPS fix. It takes normaly between 5 and 15 Minutes until the first fix, even if I use the Quick-GPS Tool that comes with the Ameo. After that, everything works fine. How long does it take with your device and igo?
If I use my GNS GPS receiver (http://www.gns-gmbh.com/de/30_5843.php) I need only a few seconds until the first fix. And it supports TMC!!! I've searched a lot around to find another / cheaper solution to use TMC with the integrated GPS receiver, but I didn't find a working solution, so i decided to buy the GNS GPS receiver....
Regards
Andreas
Click to expand...
Click to collapse
Hi Andreas,
hmm... thank for the link. That would be really the last chance to get TMC working for the ameo.
FYI, I use Mobile Navigator 6 and it fixes the gps signal really quick. I also use the Quick GPS and when I start MN6 the GPS signal fixes within 1 minute.
Greetz,
DAx
AndreasF said:
Hi,
just a question from my side:
I'm currently using igo with my Ameo and I have to wait and wait and wait and wait for the first GPS fix. It takes normaly between 5 and 15 Minutes until the first fix, even if I use the Quick-GPS Tool that comes with the Ameo. After that, everything works fine. How long does it take with your device and igo?
If I use my GNS GPS receiver (http://www.gns-gmbh.com/de/30_5843.php) I need only a few seconds until the first fix. And it supports TMC!!! I've searched a lot around to find another / cheaper solution to use TMC with the integrated GPS receiver, but I didn't find a working solution, so i decided to buy the GNS GPS receiver....
Regards
Andreas
Click to expand...
Click to collapse
Hi Andreas,
can you confirm that the GNS 5843 TMC work on the X7500 with Igo.
Thanks
Gigino
gigino said:
Hi Andreas,
can you confirm that the GNS 5843 TMC work on the X7500 with Igo.
Thanks
Gigino
Click to expand...
Click to collapse
Yes i.e. it works on my T-Mobile (Germany) Ameo with igo,
Cheers
Andreas
AndreasF said:
Yes i.e. it works on my T-Mobile (Germany) Ameo with igo,
Cheers
Andreas
Click to expand...
Click to collapse
Hey Andreas,
sorry to trouble you again but we are using the igo plus and the same gps as you the GNS 5843 but we can get the gps to work but not the TMC everytime we try to connect the TMC the pda just frezzes like the port has a conflict.
We have only been trying this in landscape mode can you tell me in which mode you are using the igo Portrait or Landscape.
Please can you help me in get this to work because I really like the Igo plus more the any anothe navigators.
Thanks
Gigino
Hi Gigino,
hmmmm, strange, for me it works. And yes, I'm using the landscape modus.
Sounds for me, that Igo uses the internal GPS receiver an tries to find a TMC connection on this internal GPS receiver.
Some Ideas from my side:
If you connect the GNS receiver via bluetooth, which serial port do you use? I've configured the bluetooth settings and then the COM-connections (I hope this are the right terms, I'm using a german ROM) with COM1 and secure connection. For instance Mobile Navigator 6 expects the TMC Signal only on COM1 and doesn't accept other ports.
The internal GPS Receiver is connected to Com4 on my system: GPS Settings -> Programms: Com4 and ->Hardware: None, 4800 Baud and -> Access: Automatic.
In a few words: internal GPS receiver on COM4, external GPS Receiver via bluetooth connected to COM1.
Do you have / use the test software from GNS to test, if youre GPS receiver is ok? You can download it on their page.
Last hint: Sometimes (Mobile Navigator6: every time!) you have to start the Navigator software twice to get a connection to the GNS 5843. It's a known bug for this receiver
Hope all this helps, otherwise contact me again
Regards Andreas
AndreasF said:
Hi Gigino,
hmmmm, strange, for me it works. And yes, I'm using the landscape modus.
Sounds for me, that Igo uses the internal GPS receiver an tries to find a TMC connection on this internal GPS receiver.
Some Ideas from my side:
If you connect the GNS receiver via bluetooth, which serial port do you use? I've configured the bluetooth settings and then the COM-connections (I hope this are the right terms, I'm using a german ROM) with COM1 and secure connection. For instance Mobile Navigator 6 expects the TMC Signal only on COM1 and doesn't accept other ports.
The internal GPS Receiver is connected to Com4 on my system: GPS Settings -> Programms: Com4 and ->Hardware: None, 4800 Baud and -> Access: Automatic.
In a few words: internal GPS receiver on COM4, external GPS Receiver via bluetooth connected to COM1.
Do you have / use the test software from GNS to test, if youre GPS receiver is ok? You can download it on their page.
Last hint: Sometimes (Mobile Navigator6: every time!) you have to start the Navigator software twice to get a connection to the GNS 5843. It's a known bug for this receiver
Hope all this helps, otherwise contact me again
Regards Andreas
Click to expand...
Click to collapse
Hey Andreas,
thanks for your help I well try again over this weekend.
They is another problem that I have and I've tryed everything but cannot resolve it.
I use the Igo Plus in landscape mode when I'm using the map and I get a reminder or a call the screen revertes to portrait mode and after accept the call or dismissing the reminder all the buttons in the Igo software goes all funny.
Do you have the same problem or have you find a way to correct this problem.
Thanks
Gigino
Ah I have this problem if the keyboard is attached but not if it isnt. What happens is that for some wierd reason the screen gets INVERTED! If you imagine where the button should be if it were upside down you can click it! Most odd!
adamelphick said:
Ah I have this problem if the keyboard is attached but not if it isnt. What happens is that for some wierd reason the screen gets INVERTED! If you imagine where the button should be if it were upside down you can click it! Most odd!
Click to expand...
Click to collapse
Hi,
I can confirm this also, the screen is inverted meens, that it looks ok, but you you have to touch it in an inverted way. I.e. the button is on the left upper corner of the screen, but you to click in the right lower area. Thats really strange. I've have the feeling, that this happens very often, if you use the Map view instead of the cockpit view.
@ gigino: I use the ameo with a brodit mount without the keyboard, so I don't have this problem.
In my last message is a little mistake, you have to switch OFF (and not ON) the automatic access in the GPS settings.
Regards
Andreas
i plan to buy a bluetooth gps receiver.
i just have some question before buying one
- will any bluetooth gps receiver work with niki? are there known receivers that will not work?
- i currently have a mapking software on niki and a map of my city, is the bluetooth gps receiver all i need for it to work? by work i mean it'll tell you where you are, where to go, etc...
thanks!
I have an adapt AD-350 bluetooth GPS receiver.
Works like a dime! It 'only' cost me 50 euro's (dixons, the netherlands).
Works with any app that can use GPS, (for all I know).
dekoning said:
I have an adapt AD-350 bluetooth GPS receiver.
Works like a dime! It 'only' cost me 50 euro's (dixons, the netherlands).
Works with any app that can use GPS, (for all I know).
Click to expand...
Click to collapse
looks nice thanks dude! i'll consider that brand, i hope they sell it in taiwan
my holux GPS (i forget the number) works great.
i use this : http://www.htcdirect.co.uk/index.php?main_page=product_info&products_id=289¤cy=GBP
solar powered sirf iii on my copilot7, all good
I use an Oasis BT GPS, wich are no longer available under that brand name but it works perfect with my downloaded tom tom software
you can find a lot on pdashop.be
succes!!
I use a Globalsat BT-338 and its wonderful.
I like the idea of a solar powered bluetooth gps
anyways thanks guys! will check out those you suggested! buying one tom
Navman B10
I just paired a NAVMAN B10 the $35 special from Expansys US. It is a SIRFIII and so far it works awesome. Cant really see why it was so cheap. Yet.....
kipmast said:
Cant really see why it was so cheap. Yet.....
Click to expand...
Click to collapse
maybe made in China? lol
Can I use these with Google Map? I mean that I don't need TomTom or another program at all?
I use this, "http://www.bluenext.co.uk/bluetooth-gps/bn-806f-bluetooth-gps.html"
works real good, it's real fast, good battery and have the last chip sirf star III, and of course all this for a good price
How to setup
Could someone tell me how to setup GPS connection over Bluetooth? I have a Nokia GPS which was working on normal HTC Touch and I just can't get it work on Nike... This is what I did:
1. Turn on GPS
2. Turn on Bluetooth on Nike
3. Search for BT device, Nokia is found
4. Enter code
5. Select serial port (the only port offered)
6. I create an outgoing port (e.g. COM2) for Nokia (in settings/connections/setting/bluetooth)
7. I set GPS program port to the previously created outgoing port in setting/system/External GPS)
8. I set GPS port number in iGO...
What did I wrong? Please help me.
Thank you in advance
That's all correct. I can't see what's the problem there.
Me neither... On my old iPaq (WinMo 2003) is a lot easier to connect as there is a connect feature in Bluetooth manager. In WinMo 2006 there is no such possibility... How can a bluetooth connection to GPS initialized without iGO? How could I connect from Windows to test the connection?
mapping software
i live in the us where can i get a free mapping software with map? because i dont want to access any data...
http://www.xperiadepot.com/freedom-keychain-gps-2000/10A95A2869.htm
There are no good description for this product. Does anyone know what they do?
I think this is an ordinary gps modul and description made by someone who does not know there is already a gps receiver built-in in X1.
maybe you use it to help find your keys?
Feezer said:
maybe you use it to help find your keys?
Click to expand...
Click to collapse
Right but the description confuses me and it does sound exactly like what jabe said. But I would so buy this if it was key finder.
It just a bluetooth GPS module that fits on a key chain. You don't need it as the X1 already has a built in GPS chip. If you had a smartphone without a GPS chip, then there's be some benefit to it.
Or if you wanted to use GPS stuff on a laptop or something with BT etc.
Suppose your X1 is positioned in your car that way that the GPS reception is bad but you cannot relocate it. You can set it up to receive GPS signals from this external module. The module itself can be put anywhere like near a window or on the car's roof or so.
WTF? Did you even read? "The Freedom Keychain GPS 2000 is the world’s lightest and most compact pocket GPS receiver."
It's an external GPS receiver.
gps is receiving only!
you pick up a signal from several satellites and the device calc your position
this keythingy have gps and bluetooth
bluetooth have a range of 10m so even if it could transmit
it's cords to your phone then you would have to be pretty close to the lost keys
an external gps, my brother has one but of a different brand. his loads really quick and there's no need to wait on finding satellites. i'm not sure how this performs though, but for a keychain it seems promising for other phones without a built-in gps
I actually have one of those. Well, mine is a white Vodafone branded one, but it's the same chip, hardware, box, everything. It's actually still vaguely useful - it's DGPS capable (WAAS/EGNOS), which the X1's GPS chip is not (augmented accuracy within certain systems, WAAS for North America/Canada and out to sea within several hundred miles, EGNOS for Europe etc), and it has apparently far better reception - my X1i couldn't pick up a GPS signal to save its life inside a BA Boeing 777 flight. The bluetooth'd external reciever picked up and held a strong signal for the entire 3500 mile flight at 40k ft. And inside a plane fuselage, that's got to be borderline faraday cage.