For reference, one time I had WSPR contact with Australia from the US with only 500mw and a 40' wire antenna strung into a nearby tree. Big antennas are desira

For reference, one time I had WSPR contact with Australia from the US with only 500mw and a 40' wire antenna strung into a nearby tree. Big antennas are desirable but simple (and low) wire antennas work remarkably well, and are what most people use.