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Locked Re: Optimizing Small Untuned Loop Antennas


 

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One could imagine a swept receiver (wouldn't have to be SDR) that was synchronized with a swept loop antenna to make a "Panadapter" display.

Would that work for you?

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Rick Karlquist
N6RK


On 2022-10-26 16:19, Everett N4CY via groups.io wrote:

Most of us these days are using SDR receivers and want to look at a wider piece of spectrum than the small amount you will see with a tuned loop. Are we going forward, or backwards?
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Everett N4CY

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On Oct 26, 2022, at 6:07 PM, VE7VXO <jstreet@...> wrote:

As a bonus you also get protection from out of band signals overloading the front end of your rx by virtue of the antenna acting as a narrow RF filter.

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On 2022-10-26 02:03 PM, Richard &#92;(Rick&#92;) Karlquist &#92;(N6RK&#92;) wrote:

You can get a lot more signal out of a given loop if you tune it.



Also,?you get 9 dB additional signal every time you double

the diameter of the loop.



Do you have some requirement that prevents you from simply using a tuned loop?

On n6rk.com you can find my article on building tuned loops.

Many people have duplicated this design.

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Rick Karlquist
N6RK



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