Thread: SDR gnuradio RTL-SDR x N900
View Single Post
biketool is offline biketool
2014-06-10 , 05:59
Posts: 1,417 | Thanked: 2,619 times | Joined on Jan 2011 @ Touring
#75
I figured out the problem with aplay, just mover the files in home/user/.pulse to $.old

sadly I get no sound output when I run this though it appears everything s running correctly.
Code:
sudo rtl_fm -f 430175000 -M -r 11000 - | aplay -r 11k -f S16_LE -t raw -c 1
BTW why does rtl_fm need to be run as root to avoid segfault?

(edit)
Code:
sudo rtl_fm -f 430175000 -M fm -r 11000 - | aplay -r 11k -f S16_LE -t raw -c 1
The missing option fm (or wbfm, am, usb, lsb, raw) after -M fixes the modulation setting, AM and sideband work too!! SDR, Eff Yea!! I need to get/make an upconverter for HF bands. On FM broadcast radio in rural areas the -g (gain) set to 20 really helped me a gain of 50 barely brings in some air band signals .
Last edited by biketool; 2014-06-10 at 07:22.