U.S. Army officials seek to replace the commonly used device. For decades, the U.S. Army has relied on the ubiquitous whip antenna for an array of air and ground communications, but those antennas ...

The author is a consultant in Carterton, New Zealand. This follows up his December article “Tuned Bandpass Filter Is Solution to Backup STL.” Many years ago, the active whip antenna and the active ...

Standard whip or rubber duck antennas are extremely common due to their low cost and design simplicity. They work very well for long range transmission when the orientation doesn’t change and ...

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Designing the circuit for this antenna to be telescopic makes it collapsible where it can be extended to its full length or retracted to a small length for storage portability. It may consist of a ...