 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| HomeDiscussion Groups General General TopicsGSMBluetoothProviders AlltelATT WirelessCingularFidoNextelSprint PCST-MobileVerizonManufacturers EricssonNokiaMotorolaCountry Specific Australian GroupUK GroupRelated Topics PocketPCPalmMore Topics ... |
Cellular Phone Forum / Country Specific / UK Group / October 2005Bluetooth dongles
Hi. Can someone give me the brief lowdown on Bluetooth dongles for PCs? I want to get one for my computer but I'm not sure completely what I need to be looking at and what features. I've seen some that say version 1.1 and others 1.2. Is the 1.2 the latest version for bluetooth and what is the difference? Faster transfer rates? I am getting a new mobile (cell) phone soon, so would use it mainly for transferring photos etc to my computer. Tia John don@lduck.com declared for all the world to hear... > Hi. Can someone give me the brief lowdown on Bluetooth dongles for > PCs? I want to get one for my computer but I'm not sure completely [quoted text clipped - 3 lines] > getting a new mobile (cell) phone soon, so would use it mainly for > transferring photos etc to my computer. Difference usually means profiles supported. Get 1.2 and 100 metre range. Should cost no more than £25.  SignatureRegards Jon >don@lduck.com declared for all the world to hear... >> Hi. Can someone give me the brief lowdown on Bluetooth dongles for [quoted text clipped - 7 lines] >Difference usually means profiles supported. Get 1.2 and 100 metre >range. Should cost no more than £25. Or £9.99 from Aldi on Thursday 27/10/05. see http://www.aldi.co.uk/special_buys/product_433.html It's Bluetooth 1.2 (Supports lots of profiles) and USB 2.0 compliant. I bought one last time they were on offer and it works fine with bluetooth headsets, mobiles etc. I have just one or two more questions on Bluetooth dongles. At first I though that these things were only up to version 1.2 with the previous 1.1 still available to buy. When I have visited a website selling them though it appears that there is Class 1.2 and the latest class is class 2. (See below). Class 1.2 Bluetooth Dongle (100m Range) Class 2 Bluetooth Dongle (40m Range) My question is, what are the difference between these two apart from the range? I understood the basic difference between 1.1 and 1.2, but couldn't find much on class 2 from the sites I looked at. Also, as far as the range is concerned, If Class 2 is backwards compatible with Class 1.2 and 1.1, if you were only using features of 1.1 or 1.2 on the class 2 dongle, would you get an improved range to the full 100m, or would it always be 40m on the class 2 version no matter what features you use? I don't really see range being that important with Bluetooth, because it is mainly something for short range transfers is it not? I.E. transferring photos from phone or camera to computer etc? Finally, are there any dangers using bluetooth? eg Radiation etc? They transmit using radio waves right? John >My question is, what are the difference between these two apart from >the range? As far as I know, it is just the range >Also, as far as the range is concerned, If Class 2 is backwards >compatible with Class 1.2 and 1.1, if you were only using features of >1.1 or 1.2 on the class 2 dongle, would you get an improved range to >the full 100m, or would it always be 40m on the class 2 version no >matter what features you use? Both ends need to be able to manage the range. If A can send signal to B, but B can't send signal to A, you are stuffed. >I don't really see range being that important with Bluetooth, because >it is mainly something for short range transfers is it not? I.E. >transferring photos from phone or camera to computer etc? Depends on what you use it for. 1 metre well may be enough for you. >Finally, are there any dangers using bluetooth? eg Radiation etc? They >transmit using radio waves right? Are there any dangers eating bread? eg Water etc? Bread contains water and people drown in water. So do you think people should only eat stale bread for fear of drowning? If there is a risk from radio waves, what you should worry about is the 2,000,000 watt TV transmitters, the 750,000 watt FM Radio transmitters, the who-knows-what-watts military radio and radar transmitters, not the 30 watt mobile phone bases, up to 0.5 watt mobile phones, up to 0.01 watt Class 2 bluetooth or up to 0.1 watt Class 1 Bluetooth. Let's be clear about this. There are clearly defined accepted limits for radio frequency exposure. There limits are set at one fifth of a level that is believed to be completely safe. No mobile phone or mobile base comes near this "one fifth of a safe limit" level. A bluetooth device couldn't come near it even if you swallowed the thing. SignatureIain the out-of-date hairydog guide to mobile phones http://www.hairydog.co.uk/cell1.html Browse now while stocks last! > bluetooth device couldn't come near it even if you swallowed the > thing. Would that be the phone or the dongle?? >Would that be the phone or the dongle?? If you swallowed a phone, RF would not be your problem. However, I have a USB Bluetooth adapter which is probably small enough to swallow, You'd need to attach a cable, though. Maybe not a wise move. SignatureIain the out-of-date hairydog guide to mobile phones http://www.hairydog.co.uk/cell1.html Browse now while stocks last! >>Would that be the phone or the dongle?? > [quoted text clipped - 3 lines] > to swallow, You'd need to attach a cable, though. Maybe not a wise > move. lol road@runner.com declared for all the world to hear... > When I have visited a website selling them though it appears that > there is Class 1.2 and the latest class is class 2. (See below). There are 3 power classes. Class 1 is the most powerful, having a max range of around 100m, class 2 is good for about 10m (this is the power class you see in mobile phones) and class 3 has a range of about 1m (I've never seen this power class used. There are also bluetooth version numbers, this is where the 1.0, 1.1 and 1.2 business comes in. Higher version numbers have support for more advanced profiles, such as HID (Human Interface Device - keyboard, mouse etc) and SAP (SIM Access Profile - used in built-in vehicle phone system to allow the contents of the SIM card to be read by the car kit). SignatureRegards Jon |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.