ILSplay - A simple ILS/VOR receiver using RTL-SDR

Experimenting with Python, scipy and d3js libraries.

Installation

Python 3.5 or later required. Anaconda distribution is recommended on Windows.

On Raspberry Pi 3 it is recommended to install the latest scipy lib. See

http://asgaut.blogspot.no/2016/09/installing-optimized-python-scipy.html

Other python deps:

$ pip3 install pyrtlsdr numpy scipy matplotlib $ sudo apt-get install python3-tk

Install the Osmocom RTL-SDR:

$ sudo apt-get install rtl-sdr

On 64 bit Windows, the files libusb-1.0.dll, pthreadVC2-w64.dll and rtlsdr.dll from the Osmocom pre-built binaries must be in the path. I recommend C:\windows\system32.

Using

Run with

$ python app.py

Then open http://localhost:9000/spectrum-rf.html or http://localhost:9000/spectrum-lf.html to view the RF spectrum (2.048 MHz bandwidth) or LF spectrum (64 kHz bandwith).

TODO list

• Refactor demod.py (use multiple threads, may be required on Raspberry Pi 2)
• Auto update measurements/spectrum
• Drop down list selection for frequency and valid gains
• Implement VOR demodulation