Simple FM walkie-talkie - Mobile and portable

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The OP

Published on 2006-7-23 15:44 Only look at the author

This post was last edited by jameswangsynnex on 2015-3-3 19:58

I am currently working on a similar project and hope to share it with you all if it succeeds. If you have any questions, please help me.

This post is from Mobile and portable

Ensonlin

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Published on 2006-7-23 18:06 Only look at the author

This post was last edited by jameswangsynnex on 2015-3-3 19:58

But is there anyone who can give a detailed analysis? ? ? Please ·～·

This post is from Mobile and portable

lorant

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The OP| Published on 2006-7-24 19:32 Only look at the author

I hope the engineers here can help me

This post is from Mobile and portable

Ensonlin

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Published on 2006-7-25 13:57 Only look at the author

Excuse me, what is the model of this integrated speaker and microphone? What is the approximate range of its parameters? Thank you~~~

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lorant

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The OP| Published on 2006-7-26 15:26 Only look at the author

If you know, please give me some tips

This post is from Mobile and portable

Ensonlin

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Published on 2006-7-26 15:59 Only look at the author

Now the only problem is the antenna. The distance is too close. I can't receive it if I move away. Another problem is the volume of the speaker. It is very noisy. I don't know if it is because the power is not enough, but I don't know what speaker to choose to match it. I hope everyone can help me.

This post is from Mobile and portable

lorant

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The OP| Published on 2006-7-26 16:07 Only look at the author

Is the resistor too large?

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lorant

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The OP| Published on 2006-7-30 19:31 Only look at the author

Is there anyone else?

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326309158

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Published on 2010-3-31 10:57 Only look at the author

Thanks

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