Hi
Honestly it depends on the type of wireless the cam is.
If its IP wireless / network wireless / 802.11b/g (you need to research those) ... then it will connnect directly to a wireless network , either when given an IP address or when you set up the unit and give it one.
The other type, and almost as common will rely on a proprietary communication to a base station (comes normally with the unit) will output typically an analog signal that can feed directly into a TV. (for inputing to a PC or computer will usually require an additional card).
I know this can be confusing...
Rover