I’m not going to call it a spectrum analyzer anymore – the way I’ve designed this, it isn’t going to do the same things as a spectrum analyzer.

The main difference is that a spectrum analyzer can operate without a signal generator, this won’t because the signal generator is what is going to tell the Arduino what the frequency is.

I built another shield to stack onto the shield in last week’s post.

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There is currently no connection from the DDS to this yet, but that’s one of the only few things left to do on the hardware side.

I also built a filter that will ultimately be the first filter to test. This is for my Softrock 20/30/40 and should pass 7 MHz while filtering 14 MHz.

image

This will fit in a Radio Shack small plastic enclosure – the plate was leftover from a small dummy load that I glued into the enclosure.

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Category: Arduino, Equipment

About the Author

Andrew is the owner of this blog and enjoys computer programming, building things, and photography. He's a pretty busy guy, which explains why updates to this blog are so infrequent.

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