o2 interference

Hello

One of lifes annoyances -


Why do mobile phones with my O2 sim card interfere with such things as, my
alarm clock, my tv, stereo etc...

Yet my partners Orange mobile phone seems interference free.

Can't they combat this by now? How on earth can they call mobile phones a
finished product if they interfere with such simple things?

Do the networks think that this is just "ok" now and can't be bothered to
develop anything better?

I assume it's to do with the networks using different Mhz ?

"-Darren-" <noemail@please.com> wrote in message
news:AHXWi.24220$T8.4584@newsfe5-win.ntli.net...
> Hello
>
> One of lifes annoyances -

Probably the most annoying is that my o2 phone interferes with my intercom
outside my flat everytime i come home or leave the house!!

O2 and Vodafone use 900MHz for most masts
Orange and T-Mobile are on 1800 MHz

The lower frequencies affect such items more, exactly why i'm not sure

"-Darren-" <noemail@please.com> wrote in message
news:iJXWi.24221$T8.9254@newsfe5-win.ntli.net...

"-Darren-" <noemail@please.com> wrote in message
news:AHXWi.24220$T8.4584@newsfe5-win.ntli.net...
> Hello
>
> One of lifes annoyances -

Probably the most annoying is that my o2 phone interferes with my intercom
outside my flat everytime i come home or leave the house!!

-Darren- wrote:

> Hello
>
> One of lifes annoyances -
>
>
> Why do mobile phones with my O2 sim card interfere with such things
> as, my alarm clock, my tv, stereo etc...
>
> Yet my partners Orange mobile phone seems interference free.
>
> Can't they combat this by now? How on earth can they call mobile
> phones a finished product if they interfere with such simple things?
>
> Do the networks think that this is just "ok" now and can't be bothered
> to develop anything better?
>
> I assume it's to do with the networks using different Mhz ?

It's probably more to do with the Orange base station being nearer than
the O2 one, so the phone doesn't need as much transmit power to
communicate.

On 2007-11-03, -Darren- <noemail@please.com> wrote:
> Why do mobile phones with my O2 sim card interfere with such things as, my
> alarm clock, my tv, stereo etc...
>
> Yet my partners Orange mobile phone seems interference free.

Is the Orange phone a 3G mobile? GSM phones transmit in pulses
sent at audio frequencies, which are exceeding likely to get into
adjacent electronics in a way which lets you hear them, while CDMA
(i.e. 3G) phones transmit a continuous, very broad band, signal
that is unlikely to interfere with anything and, even if it did,
wouldn't sound like anything other than very low level random
static.

Dennis Ferguson

"-Darren-" <noemail@please.com> wrote in message
news:AHXWi.24220$T8.4584@newsfe5-win.ntli.net...
> Hello
>
> One of lifes annoyances -
>
>
> Why do mobile phones with my O2 sim card interfere with such things as, my
> alarm clock, my tv, stereo etc...
>
> Yet my partners Orange mobile phone seems interference free.
>
> Can't they combat this by now? How on earth can they call mobile phones a
> finished product if they interfere with such simple things?
>
> Do the networks think that this is just "ok" now and can't be bothered to
> develop anything better?
>
> I assume it's to do with the networks using different Mhz ?
>
>
>


More likely that O2 is using 900Mhz frequency whereas Orange are using
1800Mhz, 900 interferes with electronics more than 1800 (or 3G on 2100).