Those are free space numbers. I don't think modeling will tell you as much about VSWR in any given installation as you would want. It is very sensitive to the surroundings like

Hi, is there a way to store the configuration/settings for the external radio (ie."mute on transmit") for each instance? Atm I am running 2 instances, if I change a external radio-setting on one

Coincidentally I recently built this quick and dirty 8 element Yagi for 434 MHz. I used pieces of 14 gauge wire for the elements, coat hangers would have been better

Brian, That's the way! Use straightened coat hangers, I'd bet you would find it very difficult to prove a "proper" antenna was better. 73 Alan G4ZFQ

You may be right. Since I have never built an antenna like this before I'm also using it as an education tool for myself. I'd like to know enough and learn enough so that if

This thread reminds me of a sticker on the helm of my Tiki Barge (next to the blender on the bar): Since you are NOT transmitting, SWR really doesn't matter all that much. Why not use the tried and

Ahhh okay. Thanks! Yeah, that was what I was talking about. . . I'll have to study up on that. Brian Howell From: Tom Crosbie G6PZZ

Also look up the Gamma Match Brian. It’s how the best match was obtained with the old MET antennas in the 80’s. Mechanically quite easy to do with the driven element connected to the boom

Thanks! I will take a look at the group. I'm waiting on the updated version of NanoVNA V2 before I buy one of those, that will help a lot I believe, if I am able to build an

The [MMANA-GAL] groups.io list MIGHT be of interest. But for a generic three element yagi the "ideal" radiation pattern is very well known and widely published. What you will

Typo alert that's EZNEC. Note that these programs can be rather addicting. And the quality of the output varies with the quality of the input, including complete description of the

I will look at mmana again I think I looked at that program before but it either didn't work or something else happened, I will take a look again. I do use Photoshop and Autocad

That is good. I have little experience with building antennas so I was expecting to have to be precise down to the micron. Brian Howell From:

I will take a look. I thought I had looked at MANA-GAL before, something didn't work out with it. . . I will take a look again at it to refresh my memory. Brian

Ahh! Thank you for the link. I will take a look at that. I hadn't need that one before. Thank you. Brian Howell From: David

I am wanting to put together a forward scatter meteor detection system. I will attempt to pick up reflected TV pilot carrier signals from channels 2-6, particularity channel 2.

Hello Andrea, I have compiled the program that you have and I get the following error Arduino:1.8.13 (Windows 7), Tarjeta:"Arduino Micro" In file included from f:\Documentos WINDOWS7\Mis

Hello Miguel Glad to see you are interested :-) The libraries in use are: - Encoder.h (from https://github.com/PaulStoffregen/Encoder) - Control_Surface.h (from

Hi, This may be by design as 8 and 9 are very high levels, not normally used. Best place to report a bug is here: https://forum.sdr-radio.com:4499/viewforum.php?f=21 Simon Brown,

Martin, I like to read information sequentially on my smartphone and a mail list gives me the opportunity to read all entries and save the relevant ones. If I want to save the