A sector antenna is a type of directional microwave antenna with a pie-shaped radiation pattern. Instead of broadcasting a signal in all directions (360 degrees) like an omnidirectional
A leaky feeder cable (often called a radiating cable) is designed specifically to provide two-way radio, cellular, or Wi-Fi coverage in confined spaces where standard radio waves cannot
hFE (often written as β or beta) is the DC current gain of a Bipolar Junction Transistor (BJT) in a common-emitter configuration. It tells you how much the
The standard J-Pole is a staple for VHF/UHF operations. It is essentially an end-fed half-wave vertical dipole that uses a quarter-wave parallel transmission line stub to match the
Using 75-ohm television cable (like RG-6 or RG-59) for an amateur radio feedline is not only possible but, in certain scenarios, actually advantageous. The amateur radio standard is
Radio astronomy allows you to “see” the universe through radio frequencies rather than visible light. While professional observatories use massive arrays, an amateur radio telescope is surprisingly accessible
Getting started in amateur astronomy doesn’t require an observatory or thousands of dollars. In fact, many beginners make the mistake of buying a cheap, complicated telescope right away,
Amateur radio, commonly known as ham radio, is a popular hobby and voluntary public service that brings people, electronics, and communication together. It allows people to transmit voice,
A discone antenna is an exceptionally wideband, omnidirectional antenna that looks exactly like its name suggests: a flat metal disc mounted horizontally above a metal cone, separated by
Antenna polarization refers to the physical orientation of the radio wave’s electric field as it travels through space. When an alternating current flows through an antenna’s elements, it
