Is it possible to hook a mobile phone to a rooftop antenna that is used for the tv to get a better signal?
There are many kits and antennas out there, some you can connect directly to your phone or with an amplifier depends where you are and what kind of a signal you have. I installed a Wilson Electronics Signal Boost DT in the house and it works great. It has an amp with a directional antenna you put on the roof and point toward a cell tower and is quite small. The interior antenna is also small and I no longer need to go to a door or window for calls. Antennas I looked at were all cell phone specific. DO NOT buy ANY products from DIGITAL ANTENNA their products are junk and service/help from them is worthless. Try wilsonelectronics.com web page, you also can call up their excellent help desk number. JAHMAX