|There are some devices (like Slingbox) that will do what you want. There are also devices similar to the Singbox designed specifically for security cameras.|
You could also get a capture card for your computer to connect the receiver to. Once you are able to view the cameras on your computer, there is a plethora of software that will allow you to send snapshots to you via e-mail, FTP, or some other means. There is also software that essentially acts as a web server and shows you a real-time view of the camera when you go to a web page.
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