dear friend

for receiption weak  tv signals[between 40-60 db microvolt] it is neccessary to use high gain antenna and amplifier[booster].if you want to receive a single channel,you may use asingle channel YAGI ANTENNA. there are in the market. if not please inform me to design, the channel number and type of system is neccessary.if the received signnal in antenna is low or the length of cable is too high,you may use an amplifier[booster]typically  20 db gain and 4 db noise figure.

if you want to receive more than one channel you may use a LOG PERIODIC antenna. there are in the market ,in not please inform me to design.

tv antennas must be in the line of sight of transmitter antenna so you may use a high mast[metal pipe] if you are in a deep place .

sincerely  rahmati [antenna engineer]  rahmatikhalil@yahoo.com