Hamsdr

Software-defined radio scanner.

Requirements

• rtl-sdr library

Running

Grab one of the pre-compiled binaries for Linux (amd64 or Arm), or compile from source as described below.

The hamsdr binary is used in the same way as rtl_fm e.g.

hamsdr -M wbfm -f 89.1M | play -r 32k -t raw -e s -b 16 -c 1 -V1 -

Building

Rtl-sdr C library is required. Most Linux distros include rtl-sdr and rtl-sdr-devel packages, unfortunately they are quite out of date which causes the build to fail - you will need to grab the latest source.

Building rtl-sdr

My prefered way of building is as follows:

• download latest RTL SDR source: git clone https://github.com/librtlsdr/librtlsdr
• build and install RTL SDR to /usr/local

$ cd librtlsdr
$ mkdir build
$ cd build
$ cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr/local/rtl-sdr ../
$ make
$ sudo make install

Building Hamsdr

• go get github.com/porjo/hamsdr
• ignore compile error: fatal error: rtl-sdr.h: No such file or directory
• cd $GOPATH/src/github.com/porjo/hamsdr
• build Hamsdr against RTL SDR:

$ CGO_LDFLAGS="-lrtlsdr -L/usr/local/rtl-sdr/lib" \
  CGO_CPPFLAGS="-I/usr/local/rtl-sdr/include"  \
  go build

• Find hamsdr binary in current directory

Credits

• Code based on rtl_fm from rtl-sdr by Kyle Keen (@keenerd).