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SWR stands for “Standing Wave Ratio.” It is a measurement used in the context of radio frequency (RF) engineering, particularly in the field of antennas and transmission lines. SWR is one of the critical parameters in assessing the efficiency of power transfer between a transmitter and an antenna. SWR is one of the most commonly […]

Single-Sideband is a modulation technique used in Ham Radio where one of the side-bands is suppressed to conserve bandwidth.

A Yagi antenna, radiates electromagnetic waves primarily through a combination of constructive interference and directional focusing. Oh boy that’s a mouthful. A Yagi antenna is a highly directional antenna commonly used in television reception, radio communication, and other applications where directional gain and extended range are desired. Lets look at the radiation factors for a […]

Can you protect your Ham Radio gear against a direct hit (direct lightning strike)? A lightning strike can produce as much as 1.2 gigawatts of power.  A gigawatt is a unit used to measure electrical power, and one gigawatt is equal to one billion watts.  Lightning strikes can be incredibly powerful and fast, with each strike containing […]

A vertical antenna radiates electromagnetic waves primarily due to the oscillating electric current that flows up and down its length. This oscillating current generates an electromagnetic field that propagates outward as electromagnetic waves, carrying radio frequency (RF) energy. There are a few things we need to cover, so Here are some details for how this […]

Components Description The Mobilinkd TNC connects to the Android Tablet via Bluetooth. This is nice because there are fewer cables needed, making the setup really simple. The WOAD app is easy to use once you have gone through the menu’s at least once. It even supports sending forms. Like the ARC forms. The one thing […]

What does it mean to call cq? Well generally speaking it is a way for the operator to invite other operators for conversation. The term “CQ” originates from the French word “sécurité,” meaning “attention” or “seeking attention. When an operator calls “CQ,” it essentially signifies their readiness to communicate and their desire to connect with […]

Well, there could be a couple of reasons… Hmm, I’ll just transmit more power that will fix it right? No, probably not, in fact you might damage your equipment. There are a few things you need to check before you “turn the knob to 11”. How far away are you from the repeater or other […]

Preparing for an emergency as a ham radio operator is crucial for maintaining communication capabilities during disasters and other challenging situations. Here are ten things you can do to prepare for an emergency related to ham radio: 1. License and Training: Ensure you have a valid ham radio license (Technician, General, or Extra, depending on […]

The use of 10 codes, which are a set of standardized and abbreviated codes used for radio communication, is generally discouraged in ham radio for several reasons: Lack of Standardization: 10 codes can vary significantly between different regions, organizations, and radio services. What may be understood as one code in one area could have a […]