Johnson's Techworld

This is my new 65Ah VRLA battery for my DIY ham radio power supply. Actually this battery was suggested to me by VU2KOC a few months back, though

MC4 connectors are commonly used for connecting solar panels. MC stands for Multi-Contact, the original manufacturer. 4 stands for the 4 mm diameter contact pins. Earlier MC3 connectors

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

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