Note that not the actual frequency of the carrier at any given moment encodes the frequency of the signal, but rather the gradual change of frequency over time. With FM-Modulation, an analog signal (usually audio) is transmitted by varying the carriers frequency accordingly. However, I would like to add a simple PoC-style decoder, most likely as a C++ WPF application, at some point.įor a more detailed explanation, refer to Wikipedia.Īt it's core, FSK (Frequency Shift Keying) just is binary FM-Modulation.
There is no actual decoder in this repo, just the knowledge on how to build one. Detailed explanations on the different RS41 models can be found in the appropiate files/folders. Then I will talk about the general Frame structure. My findings are really nothing new, at the end this repo is, for the most part, just an extended documentation of Zilog80s decoder, to whom most of the kudos belong.įirst I will explain a little how FSK Modulation works an how we can obtain the raw bytes sent. obtain and analyze data from 1.68 GHz RS41-D.obtain and analyze data from RS41-SGMs radio silence mode.add information on xdata other than for regular ozone soundings.find out purpose of various bytes in the STATUS and MEAS Blocks.This repositories purpose is to explain how the radiosonde Vaisala RS41 transmitts it's data to the ground station, how third parties can obtain the data as well as decode and interpret it.įor general information about radiosondes check out Wikipedia.įor more information about the RS41 check out my website.Ĭorrections and additions are always welcome, just fork the repo, edit accordingly and file a merge request.
0 kommentar(er)
