2 Meter/70 CM Bands: Which is Better
Comparing the 2 meter/70 cm bands, amateur radio operators can gain valuable insights into the capabilities of each frequency range. Both bands serve crucial roles in communication, yet they differ…
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Understanding C4FM: Continuous 4-Level Frequency Modulation
Understanding C4FM (Continuous 4-Level Frequency Modulation), it is a type of digital modulation that plays a pivotal role in modern communication systems, particularly in digital voice and data transmission applications.…
Complete DX’er: Mastering Your DXing Ability
The Complete DX’er by Bob Locher, W9KNI, is widely regarded as a must-read for amateur radio enthusiasts striving to elevate their DXing abilities. With a blend of practical advice, personal…
Tropospheric Ducting: Understanding Its Role in Radio Propagation
Tropospheric ducting is a fascinating atmospheric phenomenon that significantly impacts radio wave propagation. This occurrence allows radio signals to travel extraordinary distances, far beyond the typical line-of-sight range. To comprehend…
Transistors: Types, Advantages, and Evolution
Transistors revolutionized the world of electronics and became the foundation for modern technology. These tiny devices control electrical currents, amplify signals, and act as switches in countless applications. Without them,…
Simple Amplifier Circuit: Building and Understanding
Building and Understanding a Simple Amplifier Circuit Amplifier circuits are essential in electronics, used to increase the amplitude of a signal without altering its original shape. Furthermore, we’ll walk through…
Pass Band Filter: Understanding How It Works
A Pass Band Filter (PBF) is an essential electronic component that allows signals within a specific frequency range, known as the pass band, to pass through while attenuating signals outside…
Notch Filters: Understanding How They Work
Understanding Notch Filters, also known as a band-stop filter enables you to use it more effectively. It is an electronic filter designed to block or attenuate a specific range of…
What is APRS: Automatic Packet Reporting System
APRS, the Automatic Packet Reporting System is a digital communications protocol used by amateur radio operators for real-time information sharing. Invented in the late 1980s by Bob Bruninga (WB4APR), APRS…
Tune a Duplexer Frequency: A Comprehensive Guide
To tune a duplexer frequency is a critical process that ensures optimal performance of your ham radio repeater system. Proper tuning ensures that the transmit and receive frequencies are isolated…