Unless you truly need a live feed, a better option might be a Reconyx. It takes stills or videos like a regular trail camera and if the card fills up it automatically starts overwriting from the beginning. You can download and review the photos from a Bluetooth connection within about 100 feet. I have one up in a tree at our lake and only review it if there's damage or some issue (caught some teenagers crashing the gate with their car last summer). Runs on a bank of AA lithiums and they last forever.
I'm just asking that if you have a ranch and or farm, so that you don't get camera's stolen, does anyone use something else to watch the gate that can be uploaded upon tripping the camera. I have a client that lives here in Colorado and he's looking into one of those systems for simple ranch monitoring in another state. He has a building and would like to able to check in on it if needed through motion censor but it seems that camera's on trees are very easy to take, but some of these gizmo's could help.
Lou, thanks for the info.