1/4 vs 5/8 Wave Vertical Antennas Compared with MMANA GAL 

Thanks Ape. This is AWESOME. I have watched all of Callum's MMANA vids and he is a great explainer. But you say things in a different way and so I learn different things.

Yep, this confirms it, I'll be learning for the rest of my life. Thanks for exposing us to things that make our brains hurt...in a good way.

Thank you so very much for the MMANA GAL lesson, if ever you wanted to do others on MMANA GAL it would be greatly appreciated, by more than just myself, thank you.

I can't remember why I didn't comment before but thanks Ape. I learned some stuff about MMANA that I did not know. Great video.

I really enjoy these more technical videos!

Wow! Obtuse?! Ape comes back from HamVention and gets to use those 50 cent words! 🤩

Excellent tutorial on MMANA-GAL. Thanks!

Good job! I like how you got right into the models and didn't dawdle. Thank you!

Nice one Ape. Those modeled matching values were close to my actual.

Thats a great video, never used the compare function before.

Awesome video Ape! I need to learn this

Always a good video when Ape breaks out MMANA-Gal, hell I didn't even fast forward thru the PCB way commercial. Very cool tool

Hi Ape, My God I wish I'd seen this video last week, I downloaded the MMANA software and got really pissed off with it. 😂 However, I went in totally blind without having read about how it works or anything. Your description/tutorial, really makes sense now. I have to say though I am a 5/8 wave fanboi, if you build them right, they are a lot more effective than a 1/4 wave or even a 1/2 wave. Thanks for the video, mate. 👍

Great video Ape! I have used EZnec software before. It is a little more complex to use. I may have to try this one. Thanks for the video! 73

Awesome! Thanks 👍

Outstanding

Thanks, Ape. Good video. But I got the Muppets Mahna Mahna song stuck in my head now.

Well now I have another rabbit hole to dive down.

That's a very powerful tool. I'm in a valley and I'll need to somehow measure take off angles and see if I clear the nearby hills or not first.🍻🤠

Love me a 5/8 antenna.

Something to play with on a rainy night.

Would be interesting to see the effect of height above ground, as it increases.👍🏻

Thanks for the is Ape! I've never quite understood how to get better SWR with this program. Do you know of a way of adding steel sheet as ground in the case of designing a mobile antenna please?

Excellent and thank you for showing. The thing i missed is a good radial wire network. In my opinion a vertical always depends on a good radial network. Not for impedance bit for take off angle. Otherwise you have no idea of efficiency in real life.

If you wanted to raise the "wire" above a ground plane (and I realize you may not need one for a 5/8 vertical), which parameter do you change (Y2)? Also, if you wanted to add a loading coil at the base of the "wire" how can this be modeled in MMANA? Is that choice available in some tag in MMANA? Does anyone have a podcast that illustrates how to use the "Loads" section in MMANA? Thanks!

Great video. Have you ever tried modeling a 5/8 over 5/8 for 10 m. Would love to see the results 👍

IMHO a 10m quarterwave at ground level is a poor choice, although MMNAGAL models it fine. Bearing in mind the real life environment that my vertical is in, fences, rose bushes etc relatively close in to an antenna that does most of it's radiation from the high current portion that is closest to the ground. The point being that the MMANA model might work if I had a football field to mount my antenna in but I don't, the antenna cannot directly "see" any sky at a 5 degree elevation. A current node further up, such as you have in the longer antenna will yield a lot more advantage in my environment than the MMANA model suggests. Too many hams have become slaves to SWR, and the resonant antennas nonsense. Best to get the pattern you want before devising how to drive it. With the ground mounted verticals raising the impedance also raises the efficiency, thank you for the presentation.

👍

Someone wants to do FT8? I would be happy at 28.915. Or in the voice portion. BTW, you did not investigate ground mounted vs raising it up.

za szybko mówisz! nie można zrozumieć!

Well now I have another rabbit hole to dive down.