Johnson's Techworld

Full playlist can be accessed at: https://www.youtube.com/playlist?list=PLKGLaS1jEidO-2uXc8G2PmFQANJdz0nOL

First in the series on how I work LEO satellites, mainly Amateur Radio on Interntation Space Station, with my limited setup. Working amateur radio satellites was my dream

Main advantage I find with the waterfall display is to monitor the bands in a silent mode when I work on my laptop. What are the ways of

Last year there was quite a buzz about the launch of an APRS balloon from an engineering college, in our LEO Satellite Repeater Contact Group. The launch was

Here I am demonstrating the extreme radio frequency interference from a small switch mode power supply (SMPS) powering the external speaker of my laptop. You can see the

I have been hearing of lithium iron phospate battery ever since I came back to ham radio last year and became active on Twitter (X). Initially I used

I am sure that all of you who have visited qrz.com would have seen the Solar-Terrestrial Data Banner by N0NBH. I have also been seeing it for quite

After the recent G5 Extreme Geomagnetic Storm which knocked out global HF radio propagation, I have been monitoring the NOAA Planetary K index or Kp index regularly. On