ΑΜ radio detector

[WM6]

Her you have schematic MW AM transmitter.
You can receive reflected signal by regular MW portable radio.


https://drive.google.com/file/d/12Yj...kQlfi7KyV/view

[taxma1981]

Thanks 👍

is there a case for the transmitter and receiver to be used for cave detection?

[WM6]

Originally Posted by taxma1981

Thanks ��

is there a case for the transmitter and receiver to be used for cave detection?

Signal differences in this case are to small to be useful, as well no useful reflection.

Except, if in those cave a large metallic deposit are set.

So not useful for empty caves, but with large metallic deposits in cave will go.


But you can try such SW TX RX configuration as portable two box design, this could be useful for hole detecting.
Critical is nulling (direct TX to RX signal zeroing) such two box design.




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[taxma1981]

I have started the construction of the transmitter, I finally say to make a loop antenna, I think it will be the best for my case. It should change its orientation every time I look;

[humhum]

Hi Taxma , for find Cave You can use Resonant frequency of CO2 and H with Calculator of LRLMAN .

[taxma1981]

Work this method?

[Mike(Mont)]

Originally Posted by humhum

Hi Taxma , for find Cave You can use Resonant frequency of CO2 and H with Calculator of LRLMAN .

How do you calculate CO2? Tim's calculator only works with single elements.

[humhum]

Originally Posted by Mike(Mont)

How do you calculate CO2? Tim's calculator only works with single elements.

For test first will need use one , after other .