.TH UHD_FFT "1" "2026-08-16" "uhd_fft 3.10.12.0" "User Commands" .SH "نام (NAME)" uhd_fft \- Display spectrum from UHD receiver .SH "توضیحات (DESCRIPTION)" Show received signal spectrum .PP Unable to access the X Display, is $DISPLAY set properly? .SH "همچنین ببینید (SEE ALSO)" uhd_rx_cfile(1) uhd_rx_nogui(1) uhd_siggen(1) uhd_siggen_gui(1)