Simple antenna and rectifier circuit

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bkd

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I need to design an antenna and a rectifier circuit at 27 Mhz in order to measure the strongness or weakness of the 27 Mhz signal by multimeter. please give me instruction for calculation of value of the single diode, rectifier capacitor, resistor
Thank in advance
 

There are lots of online field strength meter projects that feed a multimeter. Most that I've seen would need to be modified to your intended frequency band but this link may help: 27MHz Links.
 

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