Most newer band definitions specify the limits less in wattage and more in EIRP that measures the actual output of the antenna instead of just the power applied

Most newer band definitions specify the limits less in wattage and more in EIRP that measures the actual output of the antenna instead of just the power applied to the antenna by the transmitter. They also specify how the power as to be spread through out the channel and how sharply it has to fall off outside the channel. [0] [0] See page 3 for an example definition of a VLP definition and requirements from earlier this year. It specifies EIRP and how the power has to be distributed so you're not throwing one big spike in the middle of the channel for example.