Why is Coax 50 Ohms?

Why is Coax 50 Ohms? Antenna 3 Element Yagi Antenna with 30/40 Loop Dipole Adder – SteppIR December 28,...

New Product MFJ-4713

This MFJ-4713 HF 4-Position Remote Antenna Switch lets you switch between four antennas remotely. Covers 1.8 to 30 MHz....