On Tuesday 02 September 2008 17:56:26 Robin Paulson wrote: > 2008/9/2 Sarton O'Brien <[EMAIL PROTECTED]>: > > The way I see it is, there is a required/acceptable amount of power > > required to reach the nearest tower. Anything lower would be unacceptable > > and the findings then fall on the antenna design. > > is the relationship as simple as: > increase the antenna size, decrease the radiation?
>From what I understand, the SAR is determined under normal operation. If less of the transmission is occurring close to your body, then the SAR decreases. So I guess ... the answer is probably yes. > could an external antenna help increase battery life also? If you were able to decrease the sensitivity then I'd say that's a possibility. > is this something we can choose ourselves, or are there particular > requirements we should be aware of? That I have no idea about and would depend on what I said above. > > Currently nearly all phones omit an antenna and therefore increase the > > SAR (and decrease the signal quality). I admit, I've never understood why > > an antenna like the startac's han't been included in newer phones. It did > > retract > > the public values compactness over safety? Since when has the human race as a whole been smart? We learn quickly compared to other species but way too slow for our own good. > > after all. The alternative these days is to use a headset/ear piece (and > > probably leave the phone near other important parts of you body!). > > someone suggested this was a bad idea, cos you're plugging the antenna > straight into the side of your head, actually making things worse That assumes the ear piece is the antenna. Not always the case. In the case of the FR, I don't know if this is the case or not. > > The overall effect is that nearly all current mobile phones have a > > similar SAR, as far as I can tell anyway (give or take, usually based on > > the design of the internal antenna). > > > > It's been a while so thing may have changed ... To be honest, I gave up caring. Sarton _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
