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Re: uBitx Antenna #ubitx-help


 

On Sun, Sep 9, 2018 at 07:25 PM, Richard Spohn wrote:
Most radios actually have very diverse output impedances, but
overall are designed to deliver the most output power into 50 or 75
ohm coax
I like that statement. Was just reading an "authoritative" article repeating the standard "maximum power is transferred when the load matches the transmitter impedance" and that was why you had to match the load to the transmitter.?

Well if that was true it would be impossible to build a transmitter with greater than 50% efficiency. A transmitter with high efficiency may have an output impedance of a few ohms.?

I'd just got through reading the other article and saw this. Being fresh in my mind made the above sentence jump out at me. So, I'm agreeing with Richard's statement.

Tom, wb6b

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