Bluetooth vs. infrared

Posted: 08-15-2004, 02:22 PM

Don Caton

Posts: n/a

Please forgive me if this question has been addressed before, but I
couldn't find anything specifically on this topic through Google...

Occasionally I use my Nokia 3650 as a wireless modem with my laptop,
connecting the two via their infrared ports. Aside from the convenience
factor, would a Bluetooth connection be any faster than IR?

Bluetooth USB adapters are around $30 so cost isn't a big concern but
this is something I do not do very often, so using an IR connection
isn't terribly inconvenient either.

Thanks for any advice.

Responses to "Bluetooth vs. infrared"

Adam Greatrix

Posts: n/a

Re: Bluetooth vs. infrared

Posted: 08-15-2004, 04:11 PM

"Don Caton" <support@shorelinesoftware.com> wrote in message
news:qsJTc.14050$TI1.6623@attbi_s52...
> Occasionally I use my Nokia 3650 as a wireless modem with my laptop,
> connecting the two via their infrared ports. Aside from the convenience
> factor, would a Bluetooth connection be any faster than IR?

Bluetooth is faster than IR, however you have to remember that any given
connection is only as fast as the slowest link. In your case, using your
Nokia as a modem, the slowest connection is by FAR the connection between
your phone and the internet. Both IR and Bluetooth are faster than this
connection, so if you use Bluetooth you will not notice any speed increase
when using your phone as a modem.

If, however, you were to backup your phone onto your computer, then you
would notice Bluetooth saving your phone data several times faster than if
it was done over IR.

Adam

Don Caton

Posts: n/a

Re: Bluetooth vs. infrared

Posted: 08-15-2004, 05:01 PM

"Adam Greatrix" <extorian@nospam.hotmail.com> wrote in message
news:cfnufe015cr@news3.newsguy.com:
> "Don Caton" <support@shorelinesoftware.com> wrote in message
> news:qsJTc.14050$TI1.6623@attbi_s52...
> > Occasionally I use my Nokia 3650 as a wireless modem with my laptop,
> > connecting the two via their infrared ports. Aside from the
> > convenience
> > factor, would a Bluetooth connection be any faster than IR?
>
> Bluetooth is faster than IR, however you have to remember that any given
> connection is only as fast as the slowest link. In your case, using your
> Nokia as a modem, the slowest connection is by FAR the connection
> between
> your phone and the internet. Both IR and Bluetooth are faster than this
> connection, so if you use Bluetooth you will not notice any speed
> increase
> when using your phone as a modem.
>
> If, however, you were to backup your phone onto your computer, then you
> would notice Bluetooth saving your phone data several times faster than
> if
> it was done over IR.
>
> Adam

Thanks. I realize the phone <-> internet connection is slow, I just
wasn't sure if the speed of an IR connection was the slower of the two.
I'll probably pass on the Bluetooth adapter then; I don't use the phone
as a modem very often.

Don

James D

Posts: n/a

Re: Bluetooth vs. infrared

Posted: 08-16-2004, 02:07 PM

IR is 14.4kbps max.
BT they say can go to 1Mbps.
BUT

IMHO the cellphone is the limiting factor.
The 3650 has it all. www.nokiausa.com/phones/3650

If you use GPRS, that is around 38kbps.
If you use GSM, that is 14.4kbps.
If you use HSCSD, then it can go 144kbps.

I use IR to read Email with my 8290 Irda phone+laptop.
It is convenient.
jim

Mauricio Freitas

Posts: n/a

Re: Bluetooth vs. infrared

Posted: 08-16-2004, 08:26 PM

"James D" <jp@readynote.comspamfree> wrote in message
news

j2Uc.4162$B53.1721@bignews6.bellsouth.net...
> IR is 14.4kbps max.
> BT they say can go to 1Mbps.
> BUT
>
> IMHO the cellphone is the limiting factor.
> The 3650 has it all. www.nokiausa.com/phones/3650
>
> If you use GPRS, that is around 38kbps.
> If you use GSM, that is 14.4kbps.
> If you use HSCSD, then it can go 144kbps.
>
> I use IR to read Email with my 8290 Irda phone+laptop.
> It is convenient.
> jim
>

Actually CSD (GSM) is 9.6kbps, HCSCSD is 14.4kbps, and GPRS is average of
48kbps, although in theory it could be almost double than this, but
operators limit it.

--
Mauricio Freitas, Microsoft MVP Mobile Devices
Bluetooth guides: http://www.geekzone.co.nz/content.asp?contentid=449
Performance Centre (Pocket PC reviews):
http://www.geekzone.co.nz/content.asp?ContentId=2028
Handango discount: http://www.geekzone.co.nz/handango_code.asp

Todd Allcock

Posts: n/a

Re: Bluetooth vs. infrared

Posted: 08-17-2004, 05:00 AM

"Don Caton" <support@shorelinesoftware.com> wrote in message news:<sNLTc.157373$eM2.76354@attbi_s51>...

> Thanks. I realize the phone <-> internet connection is slow, I just
> wasn't sure if the speed of an IR connection was the slower of the two.

It could be, depending on what you set the IR speed to. If, for
example, you are using the default IR speed of 115k, then IR is still
fa ter than your data connection. When I upgraded to my 3650, I
accidently left my IR connection speed at 14.4k (the speed I'd set for
my old 8290) and my slow IR speed was actually limiting my GPRS
connection!

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