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Base Hex Beam for 11 Meters!
- Thread starter Riverman
- Start date
Sorry for leaving you guys hanging, every time I go to start this I get held back. I do need to order a SO-239 pigtail, as it did not come with one. But I'm gonna need some help because the instructions aren't that great, something so small and looks easy, I'm a little confused.
Do you have a picture of the antenna constructed or an artist image with some detail close enough to see what is likely going on?
I saw a short coax pig tail with a male connector on a Website for about $20...which is outrageous.
Can you post the instructions?
I saw a short coax pig tail with a male connector on a Website for about $20...which is outrageous.
Can you post the instructions?
Try these videos for ideas for construction.
There are other videos on YouTube if you want to look them up. I wasn't impressed with the camera work or else I'm going blind.
Several videos show little girls building a ham multi-band version, so it must be really easy to build, I think that is the message I get from Radio Wavz.
There are other videos on YouTube if you want to look them up. I wasn't impressed with the camera work or else I'm going blind.
Several videos show little girls building a ham multi-band version, so it must be really easy to build, I think that is the message I get from Radio Wavz.
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I've deleted the post because those instructions I read are nonsense and I can't work out whether the ropes are supposed to go to the next spreader along AS EVERY OTHER HEXBEAM DOES or they're supposed to go to the directly opposite spreader.
If it's the second option I'm guessing that the bare spreaders go into the centre hub, the metal tube ends of the others fit onto those.
Think you need to find a picture of a built up one.
If it's the second option I'm guessing that the bare spreaders go into the centre hub, the metal tube ends of the others fit onto those.
Think you need to find a picture of a built up one.
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The ropes give the beam its bowed shape and some lateral stability.
You have 6 support rods in 2 pieces, with 6 ropes attached to the outer end wire guides attached with hose clamps, with 6 hooks at the other ends of the ropes that go to the top of the short mast in the hub. These 6 ropes should be under some tension to create the bowing.
The single 7 rope with hooks at both ends is to fill in the open space where the word "Driver" is in the image below and it too should be under some tension. It is the last step...after the rest of the antenna construction is completed. This space allows you easy access to the feed point taps in the short mast inside the hub.
You told us you will need a short coaxial pigtail connection at the feed point end connection at the short mast for this antenna. I can't tell from your image how the two pigtail wires are connected at the feed point on the short mast.
What kind of material is this short mast in the hub made of?
The 2 wires, one short and one longer, need to be individually threaded along the ends of the support rods as noted in the video. There should be 2 insulators, of sorts, positioned between the driver wire 2 ends and the reflector wire 2 ends...that is the spaces seen in the image below, close tot 9:00 and 3:00 o'clock.
I also saw the guy in the Charlie Chaplin type video...attaching these short insulator sections to the wires, and it looked like he was using some small tool.
Describe, if you can, how these little wire connections are done???????????
I'm as confused as both you and Al, and I'm not too sure about Conor either.
You have 6 support rods in 2 pieces, with 6 ropes attached to the outer end wire guides attached with hose clamps, with 6 hooks at the other ends of the ropes that go to the top of the short mast in the hub. These 6 ropes should be under some tension to create the bowing.
The single 7 rope with hooks at both ends is to fill in the open space where the word "Driver" is in the image below and it too should be under some tension. It is the last step...after the rest of the antenna construction is completed. This space allows you easy access to the feed point taps in the short mast inside the hub.
You told us you will need a short coaxial pigtail connection at the feed point end connection at the short mast for this antenna. I can't tell from your image how the two pigtail wires are connected at the feed point on the short mast.
What kind of material is this short mast in the hub made of?
The 2 wires, one short and one longer, need to be individually threaded along the ends of the support rods as noted in the video. There should be 2 insulators, of sorts, positioned between the driver wire 2 ends and the reflector wire 2 ends...that is the spaces seen in the image below, close tot 9:00 and 3:00 o'clock.
I also saw the guy in the Charlie Chaplin type video...attaching these short insulator sections to the wires, and it looked like he was using some small tool.
Describe, if you can, how these little wire connections are done???????????
I'm as confused as both you and Al, and I'm not too sure about Conor either.
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Looks pretty straightforward.
Pipe through the center hole of the spoke hub. Should be a set screw or something to indicate how much to push through.
Rods are two halves of pairs- stick them together.
Fasten end without ropes to the spoked hub clamps.
Pull the rope between the hub pipe and the spreader ends.
String your wire onto the spreaders and hook up coax.
Start screaming, saying "excuse me" words, pulling your hair, throwing things, ... er, I mean tuning.
Pipe through the center hole of the spoke hub. Should be a set screw or something to indicate how much to push through.
Rods are two halves of pairs- stick them together.
Fasten end without ropes to the spoked hub clamps.
Pull the rope between the hub pipe and the spreader ends.
String your wire onto the spreaders and hook up coax.
Start screaming, saying "excuse me" words, pulling your hair, throwing things, ... er, I mean tuning.
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5
579Pete
Guest
Ahhh, . . . caution as the flame descends.
Baptism-by-Fire has its everyday analogs.
What’s irrevocably uttered in those early moments — what glues that thing together — well . . . .
.
Homer, I took the 5 band Hex model and stripped off all the wires other than those for 10 meters. I set the frequency to 28 MHz. I scanned the model, and the match was in the weeds.
However, I fiddled with it and got it tuned to show a workable match over real Earth. See PDF file at the bottom of the page.
Now the model works and shows the Moxon model I made in 2015 for you is clearly the better performer. See the link below.
MFJ Moxon