Few weeks ago I stumbled upon some topic on one of FPV forums about checking frequency, spectrum, antennas etc. I realized that people are using cheap DVB-T tuner based on Realtek RTL2832U chip as spectrum analyzer, SDR (software defined radio) … Continue reading →
Another one? 🙂 There are some other open source transmitter projects, so why did I start another one? At first, I started it in 2009 – there wasn’t too much free options avaliable, ready made transmitters were also very expensive. … Continue reading →
Here you can find some information, schematic and modification of HobbbyKing’s cheap E-OSD. Everything on that page i did almost year ago, but I think it deserves for some immortality and maybe it will be useful to someone 🙂 How … Continue reading →
G-OSD schematic diagram and making new analog input to it. I was very curious how everything is connected in G-OSD. It is similar to E-OSD but different – they added potientiometers, analog inputs and gps. And there was also one … Continue reading →
Very simple voltage divider for FrSky. I use 3S battery, so I have maximum 12.6V while FrSky accepts only maximum 3.3V on its analog inputs. This time without schematic because there is no need to draw two resistors and two … Continue reading →