UHD_RX_CFILE(1)

💖 uhd_rx_cfile — the manual page, but make it a group chat 💖

okay so bestie, you know uhd_rx_cfile from User Commands? yeah. that one. it's the little icon that saves UHD received data and honestly? it's giving main character energy. let's get into it 🫶

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✨ NAME ✨

uhd_rx_cfile — save UHD received data. that's it. that's the whole job. she's a saver 💾💅

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🌸 SYNOPSIS 🌸

uhd_rx_cfile: [options] output_filename

yes the colon is there. yes it's a little quirky. we love her for it. do not come for her 🎀

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🦋 DESCRIPTION 🦋

so basically: she takes I&Q data and saves it to a complex file so you can use it later. like a little time capsule for your samples. lowkey iconic. literally just "save it for later" but for radio signals 🌈⭐

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👑 OPTIONS 👑

okay this is the part you actually came for. every single one, no skipping, no cap:

• -h, --help — shows you this help message and then dips. exit. gone. byeee 👋
• -a ARGS, --args=ARGS — UHD device address args. [default=] (yes, the default is literally empty. she's mysterious like that 🙈)
• --spec=SPEC — the subdevice of the UHD device, for when that's appropriate 🧚
• -A ANTENNA, --antenna=ANTENNA — pick your Rx antenna, when appropriate. choose your fighter ⚔️
• --samp-rate=SAMP_RATE — sets the sample rate (a.k.a. the bandwidth). [default=1000000.0] ✨
• -f FREQ, --freq=FREQ — set the frequency to FREQ. tune in bestie 📻
• -g GAIN, --gain=GAIN — set the gain in dB. the default is the midpoint, so if you don't pick, she picks for you 💜
• -s, --output-shorts — outputs interleaved shorts instead of complex floats. different flavor, same vibes 🍓
• -N NSAMPLES, --nsamples=NSAMPLES — how many samples to collect. [default=+inf] — as in, literally forever, she will not stop on her own 😭 infinity samples. unhinged. obsessed.
• -v, --verbose — verbose output. she will tell you EVERYTHING. no secrets 💀
• --lo-offset=LO_OFFSET — set the daughterboard LO offset to OFFSET. [default=hw default] — as in, whatever the hardware feels like, she's going with that 🎀

⚠️ quick vibe check: -N defaults to +inf, so if you don't tell her how many samples you want, she keeps going. know that going in, bestie.

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🔥 SEE ALSO 🔥

go hang out with her friends, they're all slay:

• uhd_fft(1)
• uhd_rx_nogui(1)
• uhd_siggen(1)
• uhd_siggen_gui(1)

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k that's the whole page, you ate it, you're basically a UHD girlie now 💜✨

this was uhd_rx_cfile version 3.10.12.0, dated 2026-01-03 — mwah, stan, periodt 💅🎀