When your modem is broadcasting you should see it on the SSID list. This list is the current broadcasting systems in your area.
You need to disable SSID broadcasting and enable wireless security.
It is always broadcasting just like the radio, the wireless receiver in your computer or laptop does not send out a signal, that's why you can buy wireless network finders that all you do is click a button to see if there is wireless.
It has to always be broadcasting radio waves otherwise no devices will ever find the router.
If you do not see signal from your router, it means that the signal is not strong enough an you need to get a wireless extender or a better router.
A wireless router takes your Internet connection from your modem and splits it with other computers on your network. The stronger the wireless router the better the signal you will receive. The stronger the signal the further you can be from the router and receive an Internet connection. As good as a strong signal sounds you should consider that your signal can be picked up your neighbors and passers by who may try to access your network.
A wireless repeater is simply a device that receives wireless signals and repeats the signal to extend the distance the wireless signal can travel. The end result is that devices can be used further away from the wireless router.
because the wireless is broadcasting it's signal, you can turn it off to the outside world in Windows 7, not sure of XP anymore LOL
Usually you do not have to do that. Either your wireless adapter is relatively weak your router. If your router has movable antennas see if you can adjust it to get better signal.
A Wireless N router simply uses different types of Hardware, the exact piece is called a N Connector. This allows for the router to not only put out a wireless signal, but it also allows for the router to receive wireless signal. This works great for computers that cannot pick up wireless signals normally.
No, you shouldn't. You should be able to connect to it directly.
This might help. http://www.askaboutmoney.com/showthread.php?t=112187
yes, if the receiving router has a "bridge mode" available. With this mode a wireless router can mirror data received from a far away router to the local area covered by it