VU2ESE has announced the launch of zBitx on the BITX group. It is available for purchase at http://www.hfsignals.com/ and delivery will start in February 2025. According to VU2ESE,
LCR meter is an instrument used to measure inductance (L), capacitance (C) and resistance (R) as the name indicates. They can measure the impedance to a sinusoidal waveform
Caution: VU2XTO has informed that high power with a linear amplifier should not be delivered to this loaded coil dipole as it can result in heating of coils.
A guide is presented to help you build a functional ham radio station with a limited budget. You will learn how to choose the right equipment, build antennas,
The fascinating science of radio wave propagation is explored, demystifying how these invisible waves travel through the air and interact with antennas. We will explore the fundamental concepts
Important specifications of an electret microphone are its directivity, sensitivity and signal to noise ratio. Directivity is the directionality or polar pattern and indicates how sensitive it is
A repeater is a combination of a receiver and a transmitter that receives signals and retransmits it so as to cover a longer distance. Usually repeaters are located
Genetic antennas are also known as evolved antennas and they often resemble paper clips bent in different ways and connected to a radiofrequency connector. Unlike usual antennas which
Looking at the spectrum of digital signals which are usually seen on amateur radio bands. Demonstrating how to adjust the span so that the width of the signal
Electrets are the electrostatic equivalents of permanent magnets. While a permanent magnet has two magnetically charged poles, an electret has two electrically charged ends. It has internal and
