QFH antenna 137.5MHz

thingiverse

QFH Antenna 137,5 MHz for receiving pictures from weather satelites. Please check this link: http://www.planetary.org/blogs/jason-davis/2015/20150921-how-to-download-weather.html For the dimensions, please check this:http://www.g4ilo.com/qfh.html (for the pole a drain pipe 32mm is used for the arms 20mm water pipe) This is work in progress, it needs improvements, i will add detailed instructions later on. Also weatherproofing caps and another acessories will be added. Update 28/3/16: I live in the citycenter. First tests of the antena were not satisfactory enough. High noise level, pictures not usable. Fro easters, i went out of town and in the middle of nowhere, the anntena works like a charm. See attached picture. Even on elevations of 5 -8 degrees was signal strenght and noise to signal ratio very good. Software chain: Orbitron to calculate the keplers and frequency shifts -> SDR Sharp with tracking plugin for starting and stoping the transmition -> virtual audio cable -> WXtoimg for recording and processing. Later on, i will add caps for the arms and top of the antenna, but no need to rework the design, as it works as intended. Print Settings Printer Brand: RepRap Printer: prusa i3 plus Rafts: No Supports: No Resolution: 0,25 mm Infill: 10% hexagonal Notes: print in ABS