I see how to turn Bluetooth off -- but don't see a similar option for Wifi.

When using the N800 as an MP3 player, I'd like to turn wireless off to increase battery life, and to avoid wireless radiation (since the health issues are still not resolved).

For my use, the ideal setup would be for the wifi to turn off automatically when it's not being used, and to reconnect when it's needed.

Thanks in advance.

The n800 has an offline mode, where both the wireless and the bluetooth are off.

The easiest way to invoke it is to press the power switch briefly - it is one of the four options you are given.

Offline mode is your friend.

Isn't the wireless transceiver turned off when it's not connected to an AP? After all, it doesn't need to arbitrarily receive data. Unlike bluetooth, it doesn't need to accept ad-hoc inbound requests.

Of course, I could be talking via my sphincter here.

You're correct, when it's not connected it's off. And even when connected it'll stay in power-savings mode most of the time, with very very little radiation. Even when active it'll only transmit up to 100mW (a phone can easily transmit much more). However, in wi-fi ad-hoc mode it doesn't go into power savings mode though afaik.

Exactly pixel,

when the chips are not in use they are turned off (and are automatically turned on when needed, such as automatic searching of wifi spots and so on).
So the best solution here is to simply leave it as is.

Transmissions happen only when there is communication (i.e. browsing, e-mail, IM...).

The only complaint is the, with this setting, it sometimes goes on-line even if I don't want it to. At times I would like to force it to stay offline and leave the bluetooth on for sending or receiving files from a cellphone or computer.

What I did notice is that the tablet really tries is best to be as often on-line as possible (if I put it in offline mode it annoys me by asking to switch onto on-line more. Just shut-up. Let me know, if you really want to, that you can't go on-line, but do not leave that annoying OK button there!).

Yep, that's a general complaint I can agree with.. there are too many 'ok' buttons. I told you to <insert operation here>, just go on with it, don't ask again, please.

I think I will file an enhancement request tomorrow in the bugzilla and post it so people can vote for it.

having lost battery power often I have learned to shut down all internet apps and put the thing in offline mode whenever I'm moving around and don't expect to use the tablet. the constant searching mode is bad on the power. Mine gets really warm when that happens.

I haven't tried the offline mode yet, but, one thing I'd like to see and think would be logical, is a simple on/off menu option under the bluetooth and the wifi icon in the menu bar.

When you turn bluetooth off, you have to go hunt it down in the control panel to start it back up.

There are times when you just want things to be off and/or secure.