Sorry, couldn't make the question title any shorter without losing meaning.
So, I'm looking to build an outdoors yagi antenna that's connected to another indoors antenna via coaxial cable. The purpose is to get better cellular coverage inside the house. The outdoors signal strength is about -81 to -73 dBm, while the indoors signal strength goes as low as 103 dBm to no coverage.
I've looked at several commercial solutions, but all of them have a bidirectional RF amplifier between the two antennae.
I was wondering if this would work without an RF amplifier between the antennae. I've looked at several DIY projects that are related to (but not exactly) what I want to achieve. Here's one: http://my-homemade-diy.blogspot.com/2012/07/diy-cell-phone-gsm-3g-signal-booster.html
The above linked project is delivering the cellular signals only to a small area inside the house. I want to do essentially the same thing except with the signals spread out over a larger area, say, 20 cubic feet. Is it doable?
Apologies if my question is missing any information that I should have provided. Any response is appreciated.