---
name: "uhd_fft"
section: "1"
platform: "linux"
package: "gnuradio"
version: "3.10.12.0-18"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/uhd_fft"
---

# uhd\_fft(1)

Display spectrum from UHD receiver

## NAME

uhd\_fft - Display spectrum from UHD receiver

## DESCRIPTION

Show received signal spectrum

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

## SEE ALSO

[uhd\_rx\_cfile(1)](/uhd_rx_cfile/1.md) [uhd\_rx\_nogui(1)](/uhd_rx_nogui/1.md) [uhd\_siggen(1)](/uhd_siggen/1.md) [uhd\_siggen\_gui(1)](/uhd_siggen_gui/1.md)