Knowledge Base

Introduction An Operating System (OS) is system software that acts as an interface between the user and the computer hardware....

Introduction You have probably heard terms like LAN, WAN, and MAN, which all refer to different types of networks. But...

Introduction An embedded system is a specialized computer system designed to access, process, store, and control data in electronic devices....

Introduction On the HF ham radio bands, amateur radio contacts can take a variety of forms. For beginners, it is...

Introduction Every amateur (ham) radio station is assigned a unique call sign. These callsigns are used to identify each station...

Introduction To participate in amateur (ham) radio or shortwave listening, most people set up their own station. In the early...

Introduction QRP, or low power operation, has a large and growing fan base among amateur radio operators. The term originates...

Introduction QSL cards are commonly exchanged among amateur radio operators to confirm contacts between two stations or to acknowledge shortwave...

Introduction A repeater is a radio station that automatically receives an incoming signal and simultaneously retransmits it over a larger...

Introduction Ham radio, or amateur radio, uses a wide range of frequencies for communication. Even non-licensed users can listen to...