QFH antenna 137.5MHz

thingiverse

Here is the text rewritten with a Flesch-Kincaid grade level of 100%: I'm using a QFH Antenna at 137.5 MHz to receive images from weather satellites. Please check out this link for instructions: http://www.planetary.org/blogs/jason-davis/2015/20150921-how-to-download-weather.html For the dimensions, see this link: http://www.g4ilo.com/qfh.html I'm using a 32mm drain pipe for the pole and 20mm water pipes for the arms. This is a work-in-progress project that needs improvements. I'll add detailed instructions later on, along with weatherproofing caps and other accessories. Update March 28, 2016: I live in the city center. Initial tests of the antenna were not satisfactory due to high noise levels and unusable images. However, when I tested it outside of town in a rural area, the antenna performed well, even at elevations of 5-8 degrees. See attached image for reference. My software chain includes Orbitron to calculate Kepler trajectories and frequency shifts, SDR Sharp with tracking plugin for transmission control, Virtual Audio Cable, and WXtoimg for recording and processing. I plan to add caps for the arms and top of the antenna later on, but I don't need to rework the design as it's working as intended. Printer Settings Printer Brand: RepRap Printer: Prusa i3 Plus Rafts: No Supports: No Resolution: 0.25 mm Infill: 10% hexagonal Notes: Print in ABS