CloudACM – Page 8 – Autonomous Computational Machines

RTL SDR ADS-B

January 31, 2023 Patrick Gilfeather

In the last post, a video introduced the topic of ADS-B. This post will cover the topic in more detail. Automatic dependent surveillance broadcast is a technology used by aircraft to broadcast location, heading, and velocity. It’s part of the FAA’s NextGen system that was first deployed in 2007 and should be completed by 2030. The standard will likely be used internationally with the purpose of providing ground controllers and pilots situational awareness. This video provides insight into the FAA…

GPS Mapping with Viking using ESP-Now and GPSd

December 22, 2022 Patrick Gilfeather

The last post (https://www.cloudacm.com/?p=4185) ended with a video titled “Decoding GPS using an RTL SDR Receiver” that was posted August of 2020. The 2 software requirements for this method are RTKLIB (https://www.rtklib.com/rtklib_tutorial.htm) and GNSS-SDRLIB (https://github.com/taroz/GNSS-SDRLIB). The video mentioned that Google Maps didn’t display, however there was mention in comments about an API requirement. The video did introduce the option to port the output to another mapping program, one of which is Viking. On a side note, I found this video…

SDR Data Processing

November 29, 2022 Patrick Gilfeather

In the last post, https://www.cloudacm.com/?p=4136, there was a lead in on the topic of capturing the data from SDR hardware using GQRX. This post was also mentioned, https://www.cloudacm.com/?p=3209. In this post, these topics will be revisited with some greater detail and enhancement. The first item covered here will be IQ data captured using GQRX. When using GQRX with SDR hardware, it’s not always convenient to view the data live. This has been the case during my field work, with the…