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Gene, W4SZ wroyte:
"However, the physical entities do not have two values at once in the same time and place." All that is needed to prove energy in the incident and reflected waves each has its own values is to separate the two with a directional coupler as the Bird Thruline wattmeter does. It gives you forward and reverse powers at the same place anywhere you choose along a transmission line. The standard device is calibrated for 50-ohm lines so it is easy to convert the power indicationsw to volts and amps if desired. Take what Tom, W8JI wrote today: "I take it you are saying you think current can flow in two directions at the same instant of time in a conductor, can be "lost" from a single conductor through radiation and resistance without a shunting impedance, conservation of chrge isn`t important and Maxwell`s equations are wrong." Of course, except for Maxwell! Maxwell`s equations work. Current can flow in opposite directions past a point. Shunting impedance makes a voltage divider with series impedance, but that`s not the only way to get a difference between points on a conductor or a coil. Conservation of charge isn`t an issue with r-f current in a wire or coil. Tom`s posting is nonsense. Best regards, Richard Harrison, KB5WZI |
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