From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Monday, December 30, 2019 12:39 PM
To: [email protected]
Subject: Re: [HBTE] Can you use a single SI4432 as spectrum analyzer? #spectrum_analyzer

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Dr Schmidt,

Exactly how would you implement this external A/D?
First you'll need a device that detects the RF and creates a signal for your A/D to look at.

Can you suggest an RF detector that can do better than 120 dB of dynamic range?
That's what this $2 Si4432 module might possibly be able to achieve.?

Two of the 120khz B3790 SAW filters will give a low enough stop band that we might be able
to test that 120dB figure.

Though when attempting build something with a dynamic range like that,
I'm sure Eric's correct about learning a whole bunch in the process.

Jerry, KE7ER


On Mon, Dec 30, 2019 at 09:02 AM, K9HZ wrote:

Fact of the matter is, implementing an external A/D with more resolution is pretty easy too if needed…

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