In the us the regulations say "minimum power required" but no more than 1W eirp, which means the radio can be less than a watt with a directional antenna. Good

In the us the regulations say "minimum power required" but no more than 1W eirp, which means the radio can be less than a watt with a directional antenna. Good 802.11 radios can do 1000mW. A microwave oven magnetron and a simple aluminum waveguide is many hundreds or thousands of times more effective radiated power.