gr-scan

Fast radio spectrum scanner based on SDR and GnuRadio.

Tune to frequencies in specified range and tri fing peak in frequency power spectrum. Print frequency and bandwidth of found peaks.

No IQ files are created if you do not specify a csv file.

To compile, run: $ make

Recommended settings: -t 7 -r 20 -w 1024 -x 86 -y 106 -z 4 -o

Example

$ sudo ./gr-scan -x 458 -y 462 -o toto.csv
[...]
00:00:01: Finished scanning 457.000000 MHz - 459.000000 MHz
00:00:02: Finished scanning 457.500000 MHz - 459.500000 MHz
00:00:03: Finished scanning 458.000000 MHz - 460.000000 MHz
00:00:04: Finished scanning 458.500000 MHz - 460.500000 MHz
00:00:05: Finished scanning 459.000000 MHz - 461.000000 MHz
[+] 00:00:05: Found signal: at 460.796500 MHz of width 21.000000 kHz, peak power -74.304337 dB (difference 4.142212 dB)
00:00:06: Finished scanning 459.500000 MHz - 461.500000 MHz
00:00:07: Finished scanning 460.000000 MHz - 462.000000 MHz
00:00:08: Finished scanning 460.500000 MHz - 462.500000 MHz
00:00:09: Finished scanning 461.000000 MHz - 463.000000 MHz

$ cat toto.csv 
time,frequency_mhz,width_khz,peak,diff
20151222_032034,460.796509,21.000000,-74.304337,4.142212