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"Dave" wrote in message ... "Ian White, G3SEK" wrote in message news Dave wrote: "Reg Edwards" wrote in message ... Reflected power is a mere fiction. Power which is not radiated from an antenna never actually arrives there. In fact it never leaves the transmitter. but, but, but, i can SEE reflected power! it shows on my TDR, i can see ghosts in video from it, i can measure it, i can catch it in a circulator! how can it be fiction?!?!?! You aren't being literal-minded enough. When you claim to "see" and "measure" reflected power, you're applying theories that assume it exists. You are not proving that it does exist. What shows on your TDR, as ghosts on your TV, and also on a slotted line, is the interaction between forward and reflected voltage waves. Likewise a circulator (or a directional coupler) processes the voltage and current waves. I've yet to see a fully detailed functional explanation of any of those devices in terms of power waves alone. That is because "forward and reflected power waves" is a derivative concept. It depends on concepts of voltage and current waves for its existence; but it doesn't add anything useful that we didn't already know. i know that, i was just trying to get in all the bogus arguments before anyone else did. 'power waves' are a concept invented to simplify some concepts, but instead they just hide the important details. we have been over and over that on here in the past and always end up in the same place, i was just hoping to skip right to the end. maybe if i had learned to use smileys it would have helped.... what is the sarcastic one?? something like ;-^ or something like that?? |
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