This antenna has worked well for me in a large single family home. It was connected to a Wireless (G) Linksys router. My router is in the basement of the house and I couldn't establish a stable connection anywhere in the house. I definitely recommend this product for signal range extension. However, you should be aware that network adapters play a role in this situation. First, I had a Linksys wireless USB adapter that couldn't pick up a weak signal. I switched to a Netgear WG121 and it set the alarm every time (once I finally got it set up properly). Finally, this product does not work with every wireless router. Be sure to check your router to make sure it has the correct connector type (I don't think it will fit most NetGear routers).
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