Author: Johnson Francis

NanoVNA is a very hand and relatively inexpensive Vector Network Analyzer which can be used to optimise the performance of the antenna. Here we will see how the

Fram2 spacecraft has been launched into orbit and has four astronauts. LB9NJ/KD3AID is among them and talked to university students of TU Berlin today from orbit. The event

OSL stands for Open-Short-Load. OSL calibration is used in NanoVNA and other vector network analyzers (VNAs). That gives a reference for the test port of the VNA. Open

Earlier I had referred to ATmega328 as the ‘Heart of Arduino Nano’. On second thought I think I have to call it the ‘Brain of Arduino Nano’ which

Thought of checking the activity on the important amateur radio bands at 3.45 pm local time using PSK Reporter. PSK reporter has plenty of amateur radio stations globally,

Bootloader is also known as boot manager and bootstrap loader. Bootloader is a small program responsible for booting a computer. In case of Arduino microcontroller, bootloader is a

Arduino Nano is a small microcontroller which is breadboard-friendly. It has 30 pins in a DIP (Dual – In – line – Package) with 15 pins on either

Automatic Antenna Tuner 100 Watts N7DDC design, purchased from INKITS by VU3SUA recently.

Here is the commonly used 7805 voltage regulator IC. I am shining a bright spotlight on the device so that the identification can be clearly seen in the