I've bought a BT dongle from Argos today - their 'own brand' model.
It's supposed to have a 100m range, but I can't get my XDA mini s to connect to it once I seem to move about 6-8 metres away.
I've got the PC in an upstairs room at the front of the house, but when I move to a downstairs room at the back, I lose the connection or ability to connect....
Is it down to the BT radio in the XDA having a 10m range, or should I get a better dongle?
Si.
Just to confuse everyone there are different "classes" of bluetooth version 1 devices. Class 1 devices have 100M range but only when communicating to another Class 1 device. The Wizard is bluetooth 1.2 but only class 2 hence the reduced range or about 10M. Those ranges are optimistic anyway, perhaps if you were in a field with no other interference.....
I'm not sure if it's a hardware or software limit on the bluetooth class in the Wizard - there's a chance that class 1 can be unlocked in the same way as people have unlocked 802.11g wireless networking.... although I doubt it.
Bluetooth 2.0 is available now but I don't know what range limits it has or how backwards compatible it is.
Related
Hi, as we'll all end up with an xda2, and they seem set to have built in Buetooth. I thought a thread all about the possitive applications for Bluetooth would be useful.
Can we steer away from the 'why can't it just have wifi' argument and actually discuss uses for bluetooth.
My thoughts are...
Bt gps mouse for the car would be fantastic. allowing you to pass the xda around the car and still have it picking up a signal. even take it outside the car when stopped to plan the rest of your route.
I have a broadband internet connection at home, running from a dedicated server machine, by Bt'ing the server i'll be able to wirelessly surf the net anywhere in my house, that would rock! internet based voice comms in my mobile. guess you could also Bt activesync if you really felt the need, but i tend to charge it at the same time so i'll stilll be plugging a cable in.
Bt headsets could be good. driving along the road and your phone rings etc...
Guess you could Bt contacts and appointments etc
Bt games could be interesting, think theres a worms clone called snails that already does this.
Does anyone know if it'll be able to connect to more than one Bt device at a time? say a gps system and a headset? or my server machine and a headset? Can anyone think of Bt uses that i've overlooked
i hope your house's not so big do not forget BTs range does not go over 10 meters and BT is much more subject to interferences frequencies with other devices than 802.b or g protocol. Even more BT max speed theorically is 2 Mbps, whereas wifi 802.11b is 10 and 802.11g is 54
i guess THAT makes the difference too
BT is more secure ok but within a very limited range and brandwidth, perfect for headsets
You can use multiple devices. BT effectively doesn't even give the full 10-meter specified range (unless it is Class II, 100 meter spec). It is very slow with an effective throughput around 700k. It is fantastic for headsets, and still much faster than GPRS. The GPS thing makes me laugh though...both devices need power, so why not just cable them together?!?
hello,
i just bought a usb dongle class 1, with a capabilty of bonding over 100 meter. But as i have found on this forum the XDA II has only class 2 which only goes 10 meters. Is there a possibility to change the one on the XDA II to become a class 2? is it software-dependant? or is it in the hardware, and there's nothing to do about it? (hope there is!).
thanks for your help.
i would very much asume that the class 1 dont send with as many watt as class 2
and i would almost surdenly asume that no software setting would be able to change this
maybe some bluetooth repeater could be able to if it were within 10m of the xda2 would repeat the bluetooth signal and making it stronger giving it a wider range
i fear i have to tell you that the operating class of bluetooth devices is defined by the hardware used. maybe there are solutions on the market which are class1 (100meters) allowing to set back to class2 for energy saving reasons or something else. but the other way round it would not work because the sending energy has to be significantly increased, which means more power consumption and that is not what we want to have in mobile devices. operating time of ppc's is much too short at all :-(
regards
peter
well,
thanks for your replies.
is it possible to get bluetooth relayed from my main computer all around my house so that i have wireless internet for my xda2?
something like a relayer of some description.
oh and is it possible to do this cheaply.. if not il go for wifi lol.
Yes
Yes, I use this all the time. I'd recommend getting a Bluetooth 100m adaptor. Connect via BT Activesync.
I would recommend wifi rather than bluetooth for networking in the house. It is much faster and far more stable and doesnt need line of sight.
i have a 100m connector for my pc. but my pda can only do 10m... so can i relay something in my room just to get the extra 10m or something? if so how?
bluetooth isn't line of sight either.
if you have the 100m repeater, it shouldn't matter how far the pda can see, the 100m repeater should get the signal into your room or wherever. only one of the devices needs to be strong, not both.
im not sure why its not working
the xda series bluetooth is only 10m
so as far as i know having a 100m bluetooth dongle dont help
because both ends have to be cetified for 100m for it to have a
range of 100m
maybe some repeater would work
of cause it would prob be more expensive then going wifi
also i find bluetooth slow
cruisin-thru said:
I would recommend wifi rather than bluetooth for networking in the house. It is much faster and far more stable and doesnt need line of sight.
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Click to collapse
Bluetooth doesn't need line of sight either. Performance varies, but is actually better than WiFi in some circumstances. It does not matter that your device can only handle 10m, a 100m dongle will still transmit faster to a further distance, in my experience.
Well from experience and having spent quite a bit of money on setting up bluetooth networks in my home...it sucks bigtime. I now have wireless and have never had a problem.
Rudegear, yes you are correct, although it doesnt sound logical it makes no difference whether you have a 100 mtr adaptor on your desktop, if your phone does only 10 meters it will struggle. I had a 100 meter usb dongle but lost signal in the next bedromm.
The reason I mentioned line of sight is because the signal seems to be drastically reduced when it has travelled through a wall, whereas if it is in the same room it will be ok. WiFi is designed for fast data connection over distance while bluetooth is a low power application that has relatively low data speeds.
i think if i put a usb 100 m in a room upstairs aswell then itl work... i have a crappy comp tht i cud use but is it worth doing... i mean its another £20.. i probably will.. thx fr the help.
WIFI v Bluetooth
We have both running, and my wife and i both using simultaneously the XDAII, we measured manually the speed between, and WIFI was marginally better.
We were both in the room next door. However, we do get better distance from the WIFI rather than the bluetooth.
Both were centralised to the house, and both at the same height (about 1.6m high), and all can reach around the house. Few houses get over 20mx20m, so if you centralise either or, you can get around it easy enough with adequate coverage.
WIFI is generally better as most routers and WIFI units can handle multiple simultaneous access, where as bluetooth struggles.
would bluetooth not loose connection speed as the range inc much more then wifi would ?
the watt they send are much much lower
Hi Aidwe,
I just installed a Bluetooth Access Point DBT-900AP from D-Link (euro 50).
Bluetooth-to-LAN Access Point
Connect it somewhere to your internet router/modem/switch via Ethernet.
The box will get an IP-adress and via Bluetooth PAN-profile, you will have internet access throughout the house (circle of +- 10 mtr. around the access point).
My only problem: the Magician (T-Mobile MDA Compact) doesn't support the bluetooth protocol standard, but out of the box XDA's with the Bluetooth Manager will work.
www.dlink.de
http://www.ameinfo.com/44944.html
Greetings Ben...
P.S. no info about the DBT-900 on www.dlink.com !
not sure about the bluetooth stack on universal but himalaya default ms bluetooth stack dont support PAN
Any PPC with 100 meters bluetooth?(or CF card)
Any PPC with 100 meters bluetooth?(or CF card)
Hi to everyone online.
Frankly speaking the Bluetooth realization in Wizard seems to be full of questions. :?:
I would be very thankful if someone could clarify the following:
1. According to the I-mate site (http://www.clubimate.com/t-DETAILS_KJAM.aspx) Wizard’s BT class is 2. Is it possible to upgrade it to class 1 (registry, patch, etc.)? (I’ve got a BT dongle from Canyon which is class 1 and it could be very convenient to use BT at a range of up to 100 m)
2. Is it possible to check which profiles are supported by the BT stack in my Wizard? The one’s supported for sure are: headset, activesync, serial port. But the one I’m interested in is PAN.
3. Where is it possible to obtain the best all-in-one BT stack for PDA? From Broadcom for example.
This thread (http://buzzdev.net/component/option,com_simpleboard/Itemid,59/func,view/id,14572/catid,26/) is very interesting, but seems that the developer will finish his soft by the end of century…
I will also appreciate any useful information from you.
Um, I think the classes of BT are 1, 1.x then 2 with 2 being the highest class at present. Going to class 1 would be a downgrade...
There is no alternative to the Microsoft stack at present on the Wizard (There was a thread on using the Widcomm 1.500 stack but no-one could get it to work). You can add A2DP / AVRCP to the Wizard via the zoA2DP.cab but I am unsure about PAN (Not sure what PAN is to be honest!)
Bebbo said:
Um, I think the classes of BT are 1, 1.x then 2 with 2 being the highest class at present. Going to class 1 would be a downgrade...
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Click to collapse
Seems that there is a little confusion with the terms.
Please note that 'class' is the clas of power consumption. There are 3 classes available at the moment:
Class Power(mW) Power(dBm) Range(approximate)
Class 1 100 mW 20 dBm ~100 meters
Class 2 2.5 mW 4 dBm ~10 meters
Class 3 1 mW 0 dBm ~10cm (1 meter max)
And the things you are talking about are BT versions/specifications. For the moment the following versions are developed:
1.0 and 1.0B
1.1
1.2
2.0.
In this case you are right - v2.0 is the newest and prefferable (supports speeds of up to 2.1 Mbit/s, lower power consumption, etc.
According to the wiki.xda-developers (comparison table of all WM based devices) - Wizard supports BT v2.0. But I'm very doubt about that, as the speed of file transfer from my PC to PDA showed much less speed... (though the BT dongle is v2.0 and class 1)
I would have thought that the hardware implementation was fixed as far as the class was concerned (Thought it unlikely that they would have implemented a class 1 device and restricted the power output via a register in the hardware ... though maybe they have). Hence the reason I thought you were on about the version of BT whose versioning goes the other way (Higher number is better)!
Ah well...
I know initially there was a lot of confusion about the Wizard being a v2.0 or Class 2 device and I have my doubts with the version being 2.0 as well. The speeds just don't seem to be up there.
I would also like to tweak the class of the device if it is possible as without an exchange server at home I can no longer sync wirelessly throughout the house with WiFi, a change of BT class would allow me to do that via BT.
My child uses a Diabetes Device (Dexcom G7 CGM) that connects to my phone via bluetooth.
If I'm out of range (6 meters) it disconnects and I can't get any info or alerts. It also can only connect to the one device that it's paired with and cannot be repaired to another device.
I'm aware that with Wifi we can have multiple "repeaters" that allow us to connect to one SSID but switch between the closest router.
Is there something that I can keep close to her that will identify as my phones bluetooth and repeat that bluetooth signal more than 6 meters but if I'm out of the house with her and only have my phone with me it should still be able to connect to my phone and not always have to connect to the device?
A normal range extender would not work because it wouldn't identify as my device.
Any help is appreciated.
One solution could be to use a Bluetooth range extender or repeater. These devices can receive Bluetooth signals and then rebroadcast them at a higher power, effectively extending the range of the signal. There are several Bluetooth range extenders available on the market that may work for your situation.
One option is the "Wireless Bluetooth Transmitter" by Avantree, which is designed specifically to extend the range of Bluetooth devices like your Dexcom G7 CGM. Another option is the "Bluetooth Extender" by Cricut, which can extend the range of Bluetooth signals up to 100 meters.
Another possible solution is to use a Raspberry Pi or similar device as a Bluetooth repeater. This would require some technical expertise, but there are tutorials available online that can guide you through the process. Essentially, you would use the Raspberry Pi to receive the Bluetooth signal from your Dexcom device and then rebroadcast it at a higher power.
Keep in mind that while these solutions may work to extend the range of your Bluetooth signal, they may also introduce some latency or delay in the data transmission. It's important to test any new devices thoroughly to ensure that they are working reliably and providing accurate data.
anawilliam850 said:
One solution could be to use a Bluetooth range extender or repeater. These devices can receive Bluetooth signals and then rebroadcast them at a higher power, effectively extending the range of the signal. There are several Bluetooth range extenders available on the market that may work for your situation.
One option is the "Wireless Bluetooth Transmitter" by Avantree, which is designed specifically to extend the range of Bluetooth devices like your Dexcom G7 CGM. Another option is the "Bluetooth Extender" by Cricut, which can extend the range of Bluetooth signals up to 100 meters.
Another possible solution is to use a Raspberry Pi or similar device as a Bluetooth repeater. This would require some technical expertise, but there are tutorials available online that can guide you through the process. Essentially, you would use the Raspberry Pi to receive the Bluetooth signal from your Dexcom device and then rebroadcast it at a higher power.
Keep in mind that while these solutions may work to extend the range of your Bluetooth signal, they may also introduce some latency or delay in the data transmission. It's important to test any new devices thoroughly to ensure that they are working reliably and providing accurate data.
Click to expand...
Click to collapse
Thanks but I believe that the range extender would appear to the device with it's own ID, this would mean that the device would not pair with it because it needs to also have the app. Also I need to be able to leave the house with just my cellphone and no repeater.
That's why I need a device that will appear to the dexcom as my phone and relay the data to my phone further away. Exactly the way it's done with a Wifi repeater that has the same SSID and the main router.