I've seen people refer to avoiding touching an antenna or bare transmission line that might be transmitting. What voltage potentials and currents are commonly found on typical ham radio antennas? Do both the voltage and current increase with increased transmitter power, or mainly one more than the other?
What are the general safety measures one should take concerning antennas, specifically from the power going into the antenna purposefully? Antenna safety around powerlines and other power sources is a different question.