I found it necessary to create this article for a few reasons
- Most of the YouTube/Instructables focus on aerials or only Windows installation
- The ones that are for the Raspberry Pi are out of date
- A url has changed which prevents WxToImg updating
- A budget SDR such as NooElec SmartSDR or RTL-SDR blog V3 or other clone
- An aerial to receive 137 Mhz to start with
- SDR Software such as GQRX or SDR++ (that does need to be compiled)
- Specific settings on your SDR software for satellites
- WxToImg to decocde the downloaded audio files into images and overlay land and latitude/longitude grids and optionally colour the image in.
- Satellite frequency and location tracking software GPredict, this will show when a satellite is approaching, control the SDR frequency and even auto-record multiple satellites.
- Linux ARM .deb package – EXPERIMENTAL! for Banana Pi, Raspberry Pi running Wheezy and other ARM computers running Linux with dpkg support (8.34MB)
## weather.txt auto-downloader by TekMaker
## the issue is that the Weather.txt file from Celestrak has been moved from celestrak.com to celestrak.org
## this will start the download, move it to the right place and start WxToImg all in one easy go.
## This is neccesary as the Linux version of wxtoimg does not have an accessible setting to change the weather.txt file url
## store this file in your /home folder and run it as sh weather.sh
wget http://celestrak.org/NORAD/elements/weather.txt ## downloads the updated file
sudo mv weather.txt /usr/local/lib/wx/tle -f ## moves and overwrites it in wxtoimg settings
wxtoimg -G ## run wxtoimg in graphical mode
Everytime you want to decode weather satellites just run the script from the terminal,