Plegium alarms and defends
The ultimate defense sprays and personal alarm buttons At a time when personal safety is a growing concern, Plegium products provide a sense of peace of mind and confidence. Whether...
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Signal boosting antennas
Plegium alarms and defends
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The evolution of 27MHz
In 1980, the MARC (Alternative Radio Communication Authorisation Regulation) came into effect in the Netherlands, legalising the use of the 27 MHz band.
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AC vs DC Converters – Everything You Need to Know
Inverters convert electrical energy between alternating current (AC) and direct current (DC). They are essential for household appliances and vehicles such as trucks, campers and caravans. They ensure efficient power...
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Omnidirectional Vs Directional Antennas
The key differences between omnidirectional and directional antennas are discussed, essential for optimizing your communications system.
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How to choose the right electronic power supply?
When choosing a power supply for your communication equipment, it is important to look at linear and switching power supplies. Linear power supplies are stable and low-noise, ideal for sensitive...
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What are Baluns and Ununs?
Baluns and ununs play an important role in optimizing signal reception. A balun, or "balanced to unbalanced", converts a balanced signal from an antenna into an unbalanced signal suitable for...
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Listening to aviation communications on the airband
Airband radios are essential for aviation professionals and hobbyists such as plane spotters and pilots. These devices operate on VHF frequencies between 118 and 136 MHz.
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What are UHF, VHF and HF frequencies?
In radio communications, HF, VHF and UHF play a crucial role in connecting signals over various distances and in different environments. HF is suitable for long-distance communications, such as global...
