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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,…

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,…

How to Get a DMR ID Number

To use Digital Mobile Radio (DMR) on amateur radio networks, you must register for a unique DMR ID number. This number identifies your radio on DMR systems like BrandMeister or…

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…

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,…