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Experiments On Ground Antennas
Our article is on preliminary explorations on the subject of sub-surface wireless, or 'underground antennas-aerials buried below ground level
post 31 Jan 2024
System Grounding Links →
An Interesting Article on Grounding and Receiver Noise
In your recent post you advised that coax should be grounded
Assorted grounding hints and kinks
Assorted Grounding Hints and Kinks and Technical Correspondence
Amateur Radio Station Grounding and Lightning Protection
Grounding and lightning protection are critical to the safe and legal operation of an Amateur Radio station
Recommended practices for grounding
The grounding system also allows transients such as lightning to be safely diverted to earth
Coax cables specifications
A low loss cable with a non-contaminating jacket
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In your recent post you advised that coax should be grounded
Assorted Grounding Hints and Kinks and Technical Correspondence
Grounding and lightning protection are critical to the safe and legal operation of an Amateur Radio station
The grounding system also allows transients such as lightning to be safely diverted to earth
A low loss cable with a non-contaminating jacket
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR