Tag Archives: antenna

Vertical vs Horizontal – HF Monopole vs Dipole

Posted on September 24, 2020 by Steve Netting OH3SPN

This article should perhaps be titled ‘HF Quarter Wave Ground Mounted Vertical Monopole With Radials vs Horizontal Half Wave Dipole at Quarter Wavelength Height’ but that seemed a little wordy. Having recently resolved my noise issues (which is probably worthy … Continue reading →

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Multi Band Slinky Doublet

Posted on April 11, 2016 by Steve Netting OH3SPN

Designing an HF antenna for Swindon Makerspace presented several challenges:- Routing coax from Makerspace to the roof is potentially tricky High external vertical antennas would require lightning protection No convenient external earths available Counterpoises impractical due to size Large horizontal … Continue reading →

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Simple Fan Dipole

Posted on June 7, 2015 by Steve Netting OH3SPN

After starting life as a fan dipole, my home antenna was later converted into a single 40m dipole due to unwanted interaction between the bands (at the time 40/30m).  Recently, the need to operate multiple bands made me reconsider my … Continue reading →

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Random Wire Loop Antenna

Posted on March 9, 2015 by Steve Netting OH3SPN

I’ve recently been researching multi band antennas. My first thought was to remove the balun from my 40m dipole, feed with ladder line from an external auto-ATU and treat as a doublet. However, in several auto ATU manuals one antenna … Continue reading →

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