These days, anything with copper in it is expensive. If you doubt that, a walk into any Home Depot electrical department, where the wire is locked up tighter than Fort Knox, will prove otherwise. C…
It only seems practical for certain receive antennas that already require an impedance matching transformer.
For most uses, RG-6 would be a better choice if you want cheap transmission line. It can easily handle 100 watts as long as you don’t use F connectors. For a single band antenna, the coax can be cut to a multiple of a half wavelength and there will be no impedance matching required if the antenna is 50Ω.
It only seems practical for certain receive antennas that already require an impedance matching transformer.
For most uses, RG-6 would be a better choice if you want cheap transmission line. It can easily handle 100 watts as long as you don’t use F connectors. For a single band antenna, the coax can be cut to a multiple of a half wavelength and there will be no impedance matching required if the antenna is 50Ω.