Did you ever wonder why Receivers use 75 OHM COAX? After all these years I finanally read why that it is the case. 75 Ohm coax has less received signal loss than 50 OHM . 50 Ohm has less signal loss on transmit. Since 75 OHM coax is dirt cheap and I have a ton of it. I plan to build a bunch of Antennas and see just how well they work using 75 OHM coax. Yea, I know, that I will have to mount them way up high. While I'm sick, I don't plan to do any of this.