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"Reg Edwards" wrote in message ... Zo of ALL real, ordinary, transmission lines changes versus frequency over a very wide frequency range. Zo ranges over lots of thousands of ohms at a few cyles of seconds, thousands of ohms at power frequencies, hundreds of ohms at audio frequencies, and from tens to a few hundred ohms from 100KHz up to as many GHz as you like. --- Reg. Are we talking the same thing for Zo ? That a piece of say rg-8 ( whatever they want to call it now) that is 50 ohm coax is not 50 ohms over its normal operating frequency range ? |
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