THE BEST video I have seen showing a basic parasitic vertical and how it works.  No confusing statistics, just a simple yet perfect drawing actually explaining radials and everything I needed to know.  THANK YOU!  Other people go so deep into statistics and blather without actually showing the difference.  This video shows it!  Now I will have to figure this out for 15m. Cheers from Seoul -- HL1ZIX

That's brilliant Brian. Having that coil switch in and out gives you the confidence its working. You must be in a good location as I here very little OC from my QTH. I may try this method some time and full credit to yourself. 2 s points is 12db in a Kenwood so pretty good.

very interesting. How to achieve excellent results with minimal expenses.

Great video and simple to understand! For sure I will try this configuration on my portable operations.

Fantastic demonstration.  What a performance boost!  Thank you for the clear presentation and simplicity of design // Stef DU3/NN3M

Hi Brian, thanks for the video. For maximum forward gain, you might wish to try a director, instead of a reflector, and at closer spacing, say 0.15 lambda spacing

Brilliant! Thank you 73.

Nice comparison. I am going to try this arrangement out. I have a small garden so I think it will work well for me.

Excellent!!!!!

Great video. I playing around with the idea of one of these myself.

Gòod info Brian  , i am an Antenna nut ,your setup is great  , good work , 73 , K9UT  Tks

Impressive!

Great job Brian!

Hi, if 1 vertical work fine, another one spaced 5 m will make a BIG difference. Especially if you feed them both with 90° difference (for 20m that is 3.5 meters for RG59/58).  Put a 3.5m cable to each antenna, and there you put your relay and phasing coax. Forward gain is some  1 to 2 dB better and F/B is up to 40 dB at low take off angles. I used this config on 80m (20m spacing) during the 1977 to 1980 with great success. Good luck with the verticals ! 73 de Bjoern

Fantastic video Brian just looking at your YouTube videos after a nice qso with nigel g4bsw he recommended to check them out ..I will be out making this vertical array at the weekend 73 john m0asn 😉👍 15:33

Hi Brian, you mention a previous video on the 2 element parasitic but I can't find that video? Comment on your coil F/B results: very conclusive however to see if it switches direction it'd be great if you took signals from the opposite direction to show them stronger there (e.g. from VK). How do we know the comparison of one vertical on its own vs with the reflector? It could be the results showing without attenuation, then with attenuation of parasitic, though I doubt it, it seems likely this is working very well as intended. Just recently we were discussing whether a 1/4 GP can be used in this manner, as we could not find any literature other than phased verticals fed and need to be a whopping half wave apart. For vertical dipoles (or EFHW which could also be fed at bottom with unun) there's plenty literature. Coincidentally I came across your video here and it does seem to show great improvements also for a 1/4 GP!

What i never get about parasitics, is how to lay out the radials so the radials from the parasitc to interfere with the raidals from the driven element. Then? I start thinking about half squares to achieve directionality instead. Then? I think about a larger half square behind it, and a smaller one in front. All the Best! 73 DE W8LV BILL (W8LV/VE3 prepandemic.)

Hi Brian, thanks for the video. May you explain how the coil is made? Best 73 de Franco, iw2hus

Hi Brian, I was looking to try this in the near future when out operating portable then I came across your video. Looks like its working a treat. Have you any info on the size of the coil and number of turns for the reflector? Just for a starting point. Hope to work you again soon from the pedestrian mobile station. 73...David M0DAD.

Great idea