Author: Johnson Francis

Here I am going through the steps which I followed for setting up RTL-SDR for receiving APRS from International Space Station. I could not receive any signals, probably

Had to get the help of ChatGPT to write a code for making the onboard LED in Raspberry Pi Pico start blinking. After that I could change the

VU7T Lakshadweep Islands Dxpedition 2025 is active from Agatti island using vertical antennas for 40-10m and on QO-100, in spite of the inclement weather due to early onset

Function of the BOOTSEL button in Raspberry Pi Pico is discussed first, followed by familiarizing with the pin numbers. Next step is to download and install Thonny, Python

There was a 49 degree maximum elevation pass of international space station here. Decided to track it with Gpredict, RTL-SDR and 40-10m inverted V fan dipole antenna. During

It was a pass of NOAA 19 with 46 degrees maximum elevation in my region. I had followed the guide on RTL-SDR website by N7FNV and KJ6IX, in

Raspberry Pi Pico is a microcontroller while Raspberry Pi 5 which I had shown earlier is a single board computer. Cost is much lesser than that of Raspberry

Finally, I could hear voices on the V/U FM transponder of International Space Station using RTL-SDR connected to Gpredict using my 80m inverted V dipole with apex at

Thanks to the YouTube tutorial by YG4SLJ, I have been able to connect RTL-SDR to Gpredict. Now the frequency in SDRSharp software for RTL-SDR follows the frequency displayed

Trying to install a plugin to connect satellite tracking and radio control software Gpredict to RTL-SDR software SDRSharp. May be I can call it a ”successful failure”? I