Antenna modeling for beginers-elevated radials.

-


 If you can't install a multiband ground radial system for your HF vertical antennas, why not try an elevated radial system?

In this video, Callum (M0MCX) uses antenna modeling software to experiment with various radial configurations, including elevated wires.

As Callum suggests, some elevated radial systems may improve antenna performance over ground radial wires.  You may find an elevated radial system works just as well better than what you had in the past.

This video is part 4 of an extended study of ground-mounted vertical antennas.  Each chapter is worth keeping in your amateur radio library.

If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=UH3AHnooH7s.

Thanks for joining us today.

Russ (KH6JRMAL0HA).

Here are some comments from Callum (M0MCX)::

In this episode we take the ground mounted vertical from Part 3 and add elevated radials to see how the antenna behaves. Using MMANA-GAL, we model a simple vertical and experiment with different radial configurations to see how they affect the far-field radiation pattern. In this video we: • Start with a basic ground mounted vertical • Add two elevated radials • Compare radiation patterns using the Compare function • Add additional radials and experiment with geometry • Raise the antenna and slope the radials downward • Observe how the low-angle radiation changes The goal here isn’t deep theory - it’s learning how to draw the antenna and observe what happens when you change the geometry. You’ll also see how elevated radials can slightly improve low-angle radiation, which is important for DX performance. In the next episode we’ll move on from verticals and start looking at loop antennas. Software used MMANA-GAL (Basic version) Free download: http://gal-ana.de/basicmm/en/ Model files used in this series All MMANA-GAL antenna models used in these tutorials can be downloaded here: 📁 https://mega.nz/folder/EnoXlTQL#Iuq-T... This folder will be updated as new videos in the series are released. Full Video Playlist 📺    • Model Your Own Antennas   If you want to follow the whole modelling series, subscribe so you don’t miss the next episode.

Ask

Get answers, explore topics, and more

Follow along using the transcript.

DXCommander

47.1K subscribers

Comments

Post a Comment

Popular posts from this blog

Antenna coax cable window pass through-Radio/TV

-
Image
  Thanks to "Tinker John" (W5CYF) for this inexpensive, homebrewed cable window pass through project. All you need are a few basic tools, bulkhead connectors, and small lumber pieces. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=KRmbezrkGoc. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM). Here are some comment from "Tinker John" (W5CYF): A simple and effective method of passing coax antenna cable through a window sill. Easy and inexpensive to make. Used for any type of antenna cable including ham radio, TV, CB or SWL. Suggested items that may be related to this video: https://www.amazon.com/shop/w5cyftink... This video shows how to create a window pass-through for coax cables, using readily available materials. The creator demonstrates a simple and inexpensive method for bringing coax cables from the outside into a ham shack, using a piece of printed circuit board and a pin...
Read more

I built a US military TEFV HF Field Antenna

-
Image
  If you want to experiment with unconventional antenna designs, please consider adapting US military HF antennas.  These antennas are easy to build and perform well on several amateur radio bands. In this video, Walt (K4OGO) builds a Terminated End Fed V Antenna (TEFV).  The antenna is broad banded, requires no antenna "tuner", and covers frequencies from 1.8 to 30 MHz. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=CCmi84GMNJQ. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM). Here are a few comments from Walt (K4OGO): built a US Military TEFV antenna to spec and worked the HF bands #hamradio #portablehamradio #hamradioantenna Link to Palomar Engineers maker of the 12:1 balun and 600 ohm termination resistor: https://palomar-engineers.com Transcript Follow along using the transcript. Show transcript COASTAL WAVES & WIRES 36.3K subscribers Videos About Salty Walt's Patr...
Read more

Build an EASY 6 Meter (50 MHz) Vertical Antenna

-
Image
  Here's another great 6 meter band antenna idea from Hayden (VK7HH). This vertical antenna is based on the "classic Cobra Antenna" described by the late Bill Orr (W6SAI). The antenna is easy-to-make using a few basic tools, a PVC mast, some RG-58 coaxial cable, and a few connectors. This antenna is suitable for both home and portable use. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=4h7UGNbWmsY. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM). Here are some comments from Hayden (VK7HH): This is a really simple and easy to construct antenna that will get you on the air on the six meter band using only RG-58 coax! I needed a quick and simple antenna for my WSPR beacon over the summer season. Enter the coaxial dipole or aka flowerpot antenna! Buy RG-58 👉 https://geni.us/HCI8NG (Amazon) ► $15 OFF at Radioddity: http://radioddity.refr.cc/haydenvk7hh Above links are affiliate The des...
Read more