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Old March 30th, 2020, 08:34 AM #101
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My new wire will not be here until late this week, early next.

And then I have to get it up.
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Old March 30th, 2020, 11:26 AM #102
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So what antenna are you getting?
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Old March 30th, 2020, 04:46 PM #103
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So what antenna are you getting?
https://www.ni4l.com/ocf-7-bands-80-...na-flex-weave/
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Old March 30th, 2020, 06:42 PM #104
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Don't forget the strategy of just taking both elements at the same time even though you have only studied for the tech. Often doesn't cost anything and then you can study the General stuff at your leisure if you accidentally pass it.
When testing resumes: if you test through the Laurel VEC, there is no charge for testing. I passed both Tech and Gen on the same day.
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Old March 30th, 2020, 07:42 PM #105
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That is the exact antenna I have. I was very impressed with it's construction and operation. I was able to talk to the owner/builder, NI4L, and he was very helpful. I did have to put a choke (just wrapped about 15 turns of the coax around a tube) to make it work properly.

I initially had mine up at about 55 feet in the trees, but after installing my tower I had to lower it to about 35 feet. Still works great and the reduction in height didn't seem to adversely affect like I thought it would.

Good luck with it!
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Old March 30th, 2020, 07:56 PM #106
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Quote:
Originally Posted by Winged Pig View Post
That is the exact antenna I have. I was very impressed with it's construction and operation. I was able to talk to the owner/builder, NI4L, and he was very helpful. I did have to put a choke (just wrapped about 15 turns of the coax around a tube) to make it work properly.

I initially had mine up at about 55 feet in the trees, but after installing my tower I had to lower it to about 35 feet. Still works great and the reduction in height didn't seem to adversely affect like I thought it would.

Good luck with it!
Thanks. Glad it worked well for you.

What size tube for the choke? And where did you place it in the feedline?

For mine, the center will be about 25 feet. With the ends about 8 - 12 feet.

The long leg will be lower, since the backyard is a story lower.
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Old March 30th, 2020, 08:13 PM #107
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Thanks. Glad it worked well for you.

What size tube for the choke? And where did you place it in the feedline?

For mine, the center will be about 25 feet. With the ends about 8 - 12 feet.

The long leg will be lower, since the backyard is a story lower.
I used an eight inch piece of corrugated plastic drain pipe. Made wrapping the coax very easy, then used some tie wraps to hold it all together. I placed it about fifteen or twenty feet off the ground which put it about thirty feet below the balun.

It did seam to weigh it down a little more and I seemed to have some sag in the line with the balun being the low part of the antenna. I have since replaced that choke with a Balun Designs 1:1 common mode (current?) balun just because I'm anal. I secured that to the house so there is now less weight on the coax/antenna. That also works great. I think I got the balun for about $65 direct from Balun Designs. Maybe overkill though.

Initially I did not have the center supported, just had it pulled tight between the trees with cinder blocks on the line connected to the ends of the antenna. When I re-hung it, the trees I used were much further apart and it did sag some in the middle, so I tied the balun top eyelet to a line and pulled that up a bit from another tree.

It works great for me and I wish you good luck with it.
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Pythagoras

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H. L. Mencken

Last edited by Winged Pig; March 30th, 2020 at 10:11 PM. Reason: correction
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Old March 30th, 2020, 09:10 PM #108
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Originally Posted by MJD438 View Post
When testing resumes: if you test through the Laurel VEC, there is no charge for testing. I passed both Tech and Gen on the same day.
Laurel VE is working on online testing.
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Old March 31st, 2020, 07:28 AM #109
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Quote:
Originally Posted by Winged Pig View Post
I used an eight inch piece of corrugated plastic drain pipe. Made wrapping the coax very easy, then used some tie wraps to hold it all together. I placed it about fifteen or twenty feet off the ground which put it about thirty feet below the balun.

It did seam to weigh it down a little more and I seemed to have some sag in the line with the balun being the low part of the antenna. I have since replaced that choke with a Balun Designs 1:1 common mode (current?) balun just because I'm anal. I secured that to the house so there is now less weight on the coax/antenna. That also works great. I think I got the balun for about $65 direct from Balun Designs. Maybe overkill though.

Initially I did not have the center supported, just had it pulled tight between the trees with cinder blocks on the line connected to the ends of the antenna. When I re-hung it, the trees I used were much further apart and it did sag some in the middle, so I tied the balun top eyelet to a line and pulled that up a bit from another tree.

It works great for me and I wish you good luck with it.
Thanks. I will see about ordering a balun.

My center will be supported from the arm off my mast.

I have a rotator, right now with phased pairs of 11 element beams for 2m and 440. I probably should put a 3 band yagi on it
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Old March 31st, 2020, 10:54 AM #110
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Sounds like you have a nice set up.

You can see my antennas on my QRZ page at K3MSP

If you call Balun Designs they will help you out, even if you don't buy their stuff. They stopped me from detuning my Cushcraft A4S when setting up my balun.

Good luck.
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Rest satisfied with doing well, and leave others to talk of you as they please.
Pythagoras

"Cogito, ergo amatum sum."
Lt. Col. David Grossman

"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats."
H. L. Mencken
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