Noise Blanker Filters (NB) in Amateur Radios
What is a Noise Blanker Filter? The noise blanker filters is a feature in amateur radios designed to reduce pulse-type noise that interferes with signal reception. This type of noise,…
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Digital Signal Processing (DSP) in Amateur Radios
What is Digital Signal Processing (DSP)? Digital Signal Processing (DSP) is a technology used in amateur radios to improve audio clarity by reducing unwanted noise and enhancing weak signals. Unlike…
Dynamic Noise Reduction (DNR) in Amateur Radios
What is Dynamic Noise Reduction (DNR)? Dynamic Noise Reduction (DNR) is an advanced signal processing feature in amateur radios that reduces background noise while preserving speech clarity. By filtering out…
What is VOX (Voice Operated Transmit) in Radio Communications
What is VOX? VOX(Voice Operated Transmit) is a feature in two-way radios that allows hands-free communication. Instead of pressing the push-to-talk (PTT) button, the radio automatically transmits when it detects…
Audio Peak Filter: Boosting Weak Signals
The audio peak filter is designed to pull in weak signals that can be a challenge in amateur radio, especially in CW. Background noise, interference, and fading often make it…
SSB Bandwidth Explained: Wide vs. Narrow
SSB bandwidth refers to the range of frequencies a signal occupies. Standard SSB transmissions typically fall within 2.4 kHz to 3.0 kHz. However, some radios allow adjustments, enabling operators to…
RF Gain vs. Squelch: Mastering Signal Control
Understanding RF gain vs. squelch, these two controls help refine how you receive signals, allowing for better clarity and reduced noise. While both affect how incoming signals are processed, they…
Evolution of Amateur Callsigns: From Chaos to Clarity
The evolution of amateur callsigns developed over time into symbols of individuals, community, history, and regulation in the world of amateur radio. These unique sequences of letters and numbers allow…
Ameritron AL-811 MARS Mod: Expanded Frequency Capabilities
Performing the Ameritron AL-811 MARS Mod is simple with a little knowledge and basic tools. The AL811 amplifier is limited to traditional ham radio bands before the modification. For those…
Frequency Modulation Mode
Frequency modulation (FM) encodes information in a radio signal by varying the frequency of the carrier wave. Unlike amplitude modulation (AM), which alters the signal’s amplitude, FM maintains a constant…