Johnson's Techworld

You may wonder why I had not posted updates on assembling LMR SDR 1.1 for the past few days. No, I have not skipped the project. I am

My Moxon Yagi for LEO satellite operations was not giving good performance after the recent rains. So thought of bringing it down and having a look. As expected,

There was a good pass of International Space Station in my region today evening with maximum elevation of about 50 degrees and it was a Western pass, which

When I hear the word inductor, I usually think of a coil wound on a former or toroid. But there are also inductors which resemble carbon film resistors

LMR SDR 1.1 is a popular software defined radio design by YE3CIF, being popularized in this region among amateur radio homebrewers by VU3ZOF. For convenience we will discuss

Though I had bought the LMR SDR 1.1 board from VU3ZOF with Si5351 clock generator pre soldered as it was a tiny SMD component, later I found that

I had used 1N4148 diode instead of the 1N34A germanium diode when I homebrewed N5ESE Classic RF Probe a few days back as the latter was not available

Sidereal time is a “star-based” timekeeping system used by astronomers to measure Earth’s rotation relative to fixed stars rather than the Sun. A sidereal day lasts 23 hours,

The AMS1117-5.0V is a popular low-dropout (LDO) linear voltage regulator designed to provide a stable 5V output at currents up to 1A. It is widely used in electronic

When I received the LMR SDR 1.1 kit of components and PCB separately, I had no idea of where to start. In case of my previous Easy BITX