Johnson's Techworld

I have bought a 180W MONO PERC solar panel to build a DIY ham radio off grid power supply. Meaning that it is a monocrystalline, Passivated Emitter and

31 degree maximum elevation pass of International Space Station at 8:28 UTC, along the Eastern side. Heard VU2PEP initially and E21EJC later, till the satellite went down up

As it was raining and it was a night time pass at 9.25 pm, I did not want to go on the terrace and rotate my Moxon Yagi.

Near overhead pass of International Space Station with VU2PEP, VU2URT and VU2JEK. 9.16 UTC, 16 June, 2025. ARISS beacon in CW was heard at the beginning of the

My amateur radio friend VU2TUM posted a video on X depicting LEO satellite operations from cruise ship. I thought of checking out the challenges of amateur radio satellite

Just now there was a pass of AO-123 amteur radio satellite, which is also known as ASRTU-1. Uplink frequency is 145.850 MHz, with a CTCSS tone of 67