UHD_FFT(1)

✨ UHD_FFT(1) ✨

okay bestie, so this is a User Commands page, meaning it lives in the part of the manual that's all about running actual programs, and this one is called uhd_fft. it's giving ✨spectrum analyzer✨ energy and honestly? we're obsessed. 🫶

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💖 NAME 💖

uhd_fft — display spectrum from a UHD receiver 👑

no cap, that's the whole vibe: you point it at a UHD receiver and it shows you the spectrum. iconic. 🌈

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🦋 DESCRIPTION 🦋

show received signal spectrum 💅

that's it. that's the job. the signal comes in, the spectrum goes up on the screen, and you get to sit there looking at it like the main character you are. 🌸

but babes, listen — if you ever see this:

Unable to access the X Display, is $DISPLAY set properly?

that means it could not get to your X display, and it's politely asking whether $DISPLAY is set properly. so check that env var, okay? don't just stare at it. 😭

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🎀 SEE ALSO 🎀

• uhd_rx_cfile(1)
• uhd_rx_nogui(1)
• uhd_siggen(1)
• uhd_siggen_gui(1)

go read those too, they're all part of the same little UHD friend group 🧚✨

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kk that's the whole page, mwah 💖 this was uhd_fft 3.10.12.0, dated 2026-01-03, and yes she ate that. periodt. 💅🎀