Johnson's Techworld

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

Just installed Gpredict satellite tracking software on my laptop. It has provision for both radio control and antenna rotator control. I have not tested them out as I

There was a pass of about 11 degrees maximum elevation in this region just now and I tried with my 80m inverted V dipole antenna and RTL-SDR Blog

‘Lonely Pass’ of International Space Station, is one in which we do not hear anyone else other than ourselves during a pass of international space station. It is

Here is a demo of listening to VU2CSR VHF net using RTL-SDR and two HF antennas. Initially I could not hear anything because the default RF gain was

I am using my multi-band fan dipole antenna to listen to HF bands and AM broadcasts. Installation of software was posted earlier in detail.

I have used the detailed instructions at https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/ for the installation of SDRSharp software in my laptop and it went on well. I am documenting the steps here.