Fumana - Dual 16 Bands Spectral Editor

Marsoni

M251S

$499.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Fumana - Dual 16 Bands Spectral EditorThe FUMANA is an all analog dual filter bank with various control to access dynamically these bands. Each filter bank is composed of an array of 16 independent 48dB oct bandpass filters. Having two identical filter arrays, allows you to use one of those for spectral analysis (of a modulator signal) and the other for spectral re synthesis (of the main signal). Each array is sub grouped in odd and even bands (numbering these increasingly from 1 to 16

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I love history; there is a lot in this book I did not know. It is definitely a challenge and a great way to learn. I took off one star (considered taking off two) because the author uses the non-Christian term of BCE. I HATE seeing that instead of what it really is BC - before Christ! I wonder if he is an atheist.

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Reviewed in the United States on December 27, 2025

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Kindle Customer

Port Orchard, US

★★★★★ 5

Useful knowledge

Format: Paperback

Great gift for the guy that thinks he's a know-it-all.

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Reviewed in the United States on January 1, 2026

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Mandee

Boise, US

★★★★★ 5

Very informative

Format: Paperback

Bought this for my son, and he really loves this book. He reads it over frequently. I recommend it if you have a reader that also wants to learn facts about history.

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Reviewed in the United States on May 1, 2026

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Ctlvr

Lowell, US

★★★★★ 5

Trivia approach to history. Great for history buffs and trivia buffs alike

Format: Paperback

Got this as a surprise for my trivia and history loving bf. He loved it because it doesn’t only tell you about history. It quizzes the reader then explains the answers. Neat concept for a book for a man with limited time to read and loves to learn new facts.

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Reviewed in the United States on January 3, 2026