It has no logging function. It seems to be native 10 Hz, but the high throughput (2x compared to 5 Hz) is probably causing some Bluetooth problems. I'm still investigating and trying to sort it out.
Blackline Fuel outputs different sentences and uses much less bandwidth. It's so frugal that it uses even less bandwidth than 5 Hz qstarz. The QStarz comes with an application that you can modify which sentences are outputted. So I'll run next tests with reduced bandwidth usage.
Does the iblue 747a+ has the same MTK II chipset?
I've ordered a BT-Q818XT and I will have it by Monday. I'm planning to do some tests and upload the results.
aol I am confirming the problems you mentioned in 10Hz mode when using bluetooth.
The Hz rate jumps between 1.4-2-3.3-5-10 all the time. After some tests I made with my Windows Mobile Phone (LG KS20, I'm using WIDCOMM version of Racechrono), I found that the problems start at rates greater than 2Hz* (3Hz, 4Hz, 5Hz, 10Hz).
I think that it's my phone's bluetooth problem which is horrid tbh.
When I connect Q818XT to my pc via usb I get the 10Hz easily. At the moment I don't have a bluetooth dongle for the pc or another more stable Windows Mobile Phone to see if I can achieve 10Hz there... When I do, I will inform you about the result.
And one question: Can you suggest me a cheap phone with wm and a reliable bluetooth? I don't care about the resolution. 320x240 is fine. Maybe some HTC?? Any feedback would be great!
*You can easily change the refresh rate of Q818XT with "QstarzGpsView v1.2.20" (win xp/vista/7 32-64)
I reply to my previous post. Bluetooth in general has some issues over 2 Hz... Waiting for advice from qstarz.
I'm sticking to usb till a solution comes.
aol i figured what the problem was. It is a bug of the widcomm stack when using SPP. I' m saying this because I had the same problem when I was connecting my OBD-ii bluetooth reader (SPP) to my phone.
After some hours of testing I figured out a workaround for this.. It's annoying but simple.
Take a look... Might give you some ideas...
I did the same thing with same sucess in my desktop pc (windows 7 64bit, belkin bluetooth adapter which has widcomm too).
widcomm stack is just horrible in SPP connections. Stay away from widcomm devices!!!
Justin I've just uploaded a short incar clip in my youtube account. Data is taken from q818xt at 10hz. Check it out! .
rx8dorifto I'm glad the workaround worked for you too
I've just ordered a q818xt to work with a Nokia 5800. The Nokia is running Symbian S60 rather than Windows Mobile, so it will be interesting to see the results.
If it doesn't work, I can always drop the frequency back to 5Hz if necessary. The price difference between the q818x (5Hz) and q818xt (10Hz) is negligible now anyway, so I don't think it is a big deal if it doesnt work from a financial point of view. It would be a pity from a technical perspective, however.
Anyone else tried the q818xt with a Symbian phone yet?
It seems to work alright with my 5800. Haven't tested it on the track, but looks good on simulated runs. I'm actually working on some settings to bring the bandwidth usage down, less or similar to the 5 Hz, so I don't think there will be big problems. I will post the new GPS settings here when I have perfected and tested them.
I just tried out my new Q818xt with my 5800. I don't understand something. The pairing went easily but when I tried it out around my block- I created a track called my block; I got no times even though the software said 6-9 satellites and the route showed me driving around the block 3 times. While I was doing this there is a big blue screen saying "Waiting..".
What does this mean? What is it waiting for?
I need to get this sorted out by Thursday since I will be racing this weekend. Please reply quickly.
Thanks, Tim
BTW: How do I delete sessions that did not operate properly. When I look at the list the delete is dim; and 1 press on a session brings me into it and it seems too late to delete it.
Thank you Adam- my start/finish line was 180* out. The 5 other traps were facing the correct way. I changed the s/f line and got my 5 laps and times- best lap 1.06.31 and top speed 19.8kph.
BTW: Re: the BTW I added to the previous question, how do I delete sessions from my 5800?
Comments
btw, HTC HD2 is not working well in 5hz mode. Tried many times.
Does it mean we could imagine to "overclock" our actual qstarz/iblue/etc... receivers using the MTK II to 10Hz?
I've ordered a BT-Q818XT and I will have it by Monday. I'm planning to do some tests and upload the results.
The Hz rate jumps between 1.4-2-3.3-5-10 all the time. After some tests I made with my Windows Mobile Phone (LG KS20, I'm using WIDCOMM version of Racechrono), I found that the problems start at rates greater than 2Hz* (3Hz, 4Hz, 5Hz, 10Hz).
I think that it's my phone's bluetooth problem which is horrid tbh.
When I connect Q818XT to my pc via usb I get the 10Hz easily. At the moment I don't have a bluetooth dongle for the pc or another more stable Windows Mobile Phone to see if I can achieve 10Hz there... When I do, I will inform you about the result.
And one question: Can you suggest me a cheap phone with wm and a reliable bluetooth? I don't care about the resolution. 320x240 is fine. Maybe some HTC?? Any feedback would be great!
*You can easily change the refresh rate of Q818XT with "QstarzGpsView v1.2.20" (win xp/vista/7 32-64)
I'm sticking to usb till a solution comes.
After some hours of testing I figured out a workaround for this.. It's annoying but simple.
Take a look... Might give you some ideas...
I did the same thing with same sucess in my desktop pc (windows 7 64bit, belkin bluetooth adapter which has widcomm too).
widcomm stack is just horrible in SPP connections. Stay away from widcomm devices!!!
have tried using serial port and all baud rate but none of them work with my HTC Touch HD2 widcomm Bluetooth.
luckily the workaround works!
rx8dorifto I'm glad the workaround worked for you too
If it doesn't work, I can always drop the frequency back to 5Hz if necessary. The price difference between the q818x (5Hz) and q818xt (10Hz) is negligible now anyway, so I don't think it is a big deal if it doesnt work from a financial point of view. It would be a pity from a technical perspective, however.
Anyone else tried the q818xt with a Symbian phone yet?
What does this mean? What is it waiting for?
I need to get this sorted out by Thursday since I will be racing this weekend. Please reply quickly.
Thanks, Tim
BTW: How do I delete sessions that did not operate properly. When I look at the list the delete is dim; and 1 press on a session brings me into it and it seems too late to delete it.
BTW: Re: the BTW I added to the previous question, how do I delete sessions from my 5800?
"Note3: Under 10Hz fix update rate, DGPS function will be disabled"
I guess that means DGPS/SBAS is disabled while running @ 10hz. I wonder how much this is going to degrade the positional accuracy.