QSL Cards: The Paper Confirmation
QSL Cards are paper confirmations of signals that traverse the airwaves, a tangible and cherished tradition that is still going strong today. Much more than a mere confirmation of contact,…
Radio fundamentals
How to Send QSL Cards
How to Send QSL Cards, many hams exchange cards to complete DXCC, Worked All States, or other operating awards. Some radio contests even require QSL card confirmation to verify your…
Radio Waves: Understanding The Process
How a Radio Waves are Transmitted is a complex and fascinating process that begins with electrical energy and ends with invisible waves traveling through the air. Each component in the…
Amplifier Bias Explained
What is Amplifier Bias Amplifier bias refers to the steady voltage or current applied to the input of an amplifying device, typically a transistor or vacuum tube when no signal…
6 Meters: The Magic Band
The 6-meters band, fondly nicknamed “the magic band,” holds a special place in the hearts of amateur radio operators. Sitting just above the HF bands and below the VHF spectrum,…
Analog vs DMR Range on Ham Radio VHF/UHF Bands
When comparing Analog vs DMR Range on 5 watt handheld ham radios within the VHF and UHF bands, the conversation often centers around range and clarity. Although both modes serve…
Bluetooth In Amateur Radio
Bluetooth is a short-range wireless communication technology designed to exchange data between devices over short distances. It operates on a global standard, allowing different electronics to connect and interact without…
The Superheterodyne Receiver: A Foundation of Amateur Radio
A superheterodyne receiver is a type of radio receiver that uses frequency conversion to simplify and improve signal detection. Invented in the early 20th century, it remains the dominant architecture…
Roofing Filters: Amateur Radio Filters
Roofing filters play a critical role in amateur radio receivers, especially in maintaining performance during crowded band conditions. These filters are the first stage of selectivity in a superheterodyne receiver,…
Digital Pre-Distortion in Ham Radio: How It Works
Digital Pre-Distortion (DPD) is a powerful technology that’s making waves in modern ham radio. Designed to improve signal quality and efficiency, DPD works behind the scenes to counteract distortions typically…