terminal impedance การใช้

• For a quantitative assessment, quality HF receivers are calibrated so that S9 on the S-meter corresponds to a signal of 50 ?V at the antenna standard terminal impedance 50 ohms.
• Wilhelm Cauer found a transformation that could generate all possible equivalents of a given rational, passive, linear one-port, or in other words, any given two-terminal impedance.
• So, in effect, " I " 1 sees an input impedance Z _ \ mathrm { in } \, and the two-port's effect on the input circuit has been effectively collapsed down to a one-port; i . e ., a simple two terminal impedance.