Modern ham radio operators often face restrictions on antennas. This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna ...

This tower is about 250 m away from the radio shack, but using low-loss coaxial cables even on HF bands, provides good performance. This tower supports also a 160 m Delta Loop antenna. This is ...

Measuring loop antennas used in the frequency band below 30 MHz have been generally calibrated with the standard field method, where a standard loop antenna generates a well-defined magnetic field at ...

In this paper, a new LF/HF RFID reader loop antenna design is proposed and tested, in order to increase detection areas of the tags. The studied structure is a Twisted Loop Antenna (TLA) which is ...

Star 6 Code Issues Pull requests Magnetic loop antenna Arduino controller and 3d printed high voltage sliding capacitor ham-radio amateur-radio antenna capacitor hf hf-antenna magloop varicap variable ...

Design and implementation of magnetic HF loop antennas and tuning capacitor controllers. The repository contains software, hardware, design calculations and references to additional documentation.

Modern ham radio operators often face restrictions on antennas. This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna an… ...

Consequently, the antennas need to share the same restricted space while preserving electromagnetic compatibility. In this context, this work presents a parametric analysis of the positioning of HF ...

The loop antenna is also popular in some noncritical applications. It’s just a continuous loop of conductor, wire, or PCB trace with a circumference of 0.1 λ to 1.0 λ.

The loop, built to match the CISPR 16-1-4 electrically-screened loop antenna requirements antennas electrostatic shield minimizes the E-field response for a more accurate magnetic field measurement.