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#1
February 27th 16, 08:19 PM
posted to rec.radio.amateur.homebrew
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am radio wave
when trying to demodulate a radio wave with am can you after a
diode leave out a capacitor and let the high frequency part and low frequency part go to a microphone - it could be true a microphone will not see the high frequency part thank you for any answers Kurt Stocklmeir -- --- Posted from http://lu7abf.org.ar/news --- news://freenews.netfront.net/ - complaints: --- |
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#2
February 28th 16, 06:22 AM
posted to rec.radio.amateur.homebrew
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am radio wave
On Sat, 27 Feb 2016 20:19:34 +0000, kurt stocklmeir wrote:
when trying to demodulate a radio wave with am can you after a diode leave out a capacitor and let the high frequency part and low frequency part go to a microphone - it could be true a microphone will not see the high frequency part thank you for any answers Kurt Stocklmeir Why would you want to send it to a microphone? An earphone would work better. There are crystal radio designs both with and without the capacitor. Those with the capacitor give more volume. Those without are more selective. If you're not talking about a crystal radio, the reason for the capacitor is to filter out the RF which can be stronger than the audio and overload the amplifier. -- Jim Mueller To get my real email address, replace wrongname with dadoheadman. Then replace nospam with fastmail. Lastly, replace com with us. |
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