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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Quarter\s+wave\s+sloper\s+\?\s*$/: 16 ]

Total 16 documents matching your query.

1. Topband: Quarter wave sloper ? (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Sat, 27 Jul 2024 12:47:51 -0700
Has anyone had success with a 160m, 1/4 wave sloper....hanging off a 90' tower, with a 40m yagi just above the top of the tower ? _________________ Searchable Archives: http://www.contesting.com/_top
/archives//html/Topband/2024-07/msg00037.html (7,021 bytes)

2. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Felipe J. Hernández <np4zet@gmail.com>
Date: Sat, 27 Jul 2024 15:50:23 -0400
Yes, is a great performer, dont waste your time with inv v or sloping dipoles, is a little trickier to tune but its a fantastic radiator. Felipe Np4z _________________ Searchable Archives: http://www
/archives//html/Topband/2024-07/msg00038.html (7,188 bytes)

3. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Gene Smar via Topband <topband@contesting.com>
Date: Sat, 27 Jul 2024 20:35:24 +0000 (UTC)
Not exactly, but close. I installed an 80M 1/4 wave sloper (a/k/a half-sloper) wire off my 64 foot tower at 50 feet. Above the wire at 66 feet is a  Bencher Skyhawk tribander where I shorted all the
/archives//html/Topband/2024-07/msg00039.html (8,293 bytes)

4. Re: Topband: Quarter wave sloper ? (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Sat, 27 Jul 2024 13:36:57 -0700
Tnx for the quick response. Is a CM choke required at the feedpoint ? If I can't fit the entire required length of wire,(I think I can get aprx 110-120') can I insert a small coil at the feedpoint ?
/archives//html/Topband/2024-07/msg00040.html (8,999 bytes)

5. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Gene Smar via Topband <topband@contesting.com>
Date: Sat, 27 Jul 2024 20:45:31 +0000 (UTC)
I don't have a choke on the sloper feedline, but I did run the coax inside the Trylon tower legs into a steel box at the base where the antenna switch is. I'd often thought about shortening the wire
/archives//html/Topband/2024-07/msg00041.html (9,759 bytes)

6. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Tree <tree@kkn.net>
Date: Sat, 27 Jul 2024 14:13:22 -0700
For a quarter wave sloper - assuming the coax goes down to the ground and runs down the ground some, it should exhibit pretty much the same impedance at the shield as the grounded tower is showing -
/archives//html/Topband/2024-07/msg00042.html (11,573 bytes)

7. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Rick Kunath via Topband <topband@contesting.com>
Date: Sat, 27 Jul 2024 17:04:58 -0400
Jim, On your sloper and the 2x segments idea for wider bandwidth, have you thought about just running 2 separate sloper wires with one slightly longer than the other in a fan arrangement? You could t
/archives//html/Topband/2024-07/msg00043.html (9,418 bytes)

8. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Rick Kunath via Topband <topband@contesting.com>
Date: Sat, 27 Jul 2024 17:12:30 -0400
Jim, I forgot to mention that 90 or 100 feet is plenty of separation for a phased flag array made of two un-terminated flags mounted vertically I made a cheap water drill to mount mine and PVC pipe g
/archives//html/Topband/2024-07/msg00044.html (9,576 bytes)

9. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Felipe J. Hernández <np4zet@gmail.com>
Date: Sat, 27 Jul 2024 17:57:55 -0400
In my case I have a 1:1 balun one leg to the antenna and the other to the tower, its simple and it works _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2024-07/msg00046.html (10,268 bytes)

10. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 27 Jul 2024 15:10:10 -0700
Yes, I've successfully used a sloping wire, suspended from a piece of large PVC conduit running horizontally through the tower at the top. I feed it against radials at the bottom, about 20 ft off the
/archives//html/Topband/2024-07/msg00047.html (9,690 bytes)

11. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 27 Jul 2024 15:13:14 -0700
It CAN make the antenna a bit quieter on RX, and prevents the feedline from acting as a radial, which could put RF in your shack if your bonding is poor. 73, Jim K9YC _________________ Searchable Arc
/archives//html/Topband/2024-07/msg00048.html (8,635 bytes)

12. Re: Topband: Quarter wave sloper ? (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Sat, 27 Jul 2024 18:59:31 -0700
Quarter wave sloper ? Just to be xtal clear, when I said 1/4 wave sloper, I meant coax run up to nearly the top of the tower, with braid to tower.....and hot side of coax to the 1/4 wave sloping wire
/archives//html/Topband/2024-07/msg00049.html (9,614 bytes)

13. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 27 Jul 2024 21:03:05 -0700
Just to be xtal clear, when I said 1/4 wave sloper, Yes, and that's been a popular way to do it. I chose another, and described it. It is, indeed, a quarter wave, and it slopes. BTW -- those rods und
/archives//html/Topband/2024-07/msg00050.html (10,249 bytes)

14. Re: Topband: Quarter wave sloper ? (score: 1)
Author: Jean-Paul Albert via Topband <topband@contesting.com>
Date: Sun, 28 Jul 2024 09:24:58 +0200
Working well but I killed twice the 3 elt 40 m KLM rotator (T2X) with power. Legal US power ! 73 Jean-Paul F6FYA depuis son iPhone _________________ Searchable Archives: http://www.contesting.com/_to
/archives//html/Topband/2024-07/msg00051.html (10,833 bytes)

15. Re: Topband: Quarter wave sloper ? (score: 1)
Author: "Mark, PA5MW via Topband" <topband@contesting.com>
Date: Sun, 28 Jul 2024 09:46:36 +0200
We used two ¼ wave slopers 160m at PI4TUE for some 15years successfully. Connection was at 60m height(200ft). Metal of the building (University of Technology Eindhoven) served als counterpart. Please
/archives//html/Topband/2024-07/msg00052.html (9,535 bytes)

16. Re: Topband: Quarter wave sloper ? (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Sun, 28 Jul 2024 02:34:56 -0700
<Hopefully - the 40M yagi has the elements connected to the boom. <Tree N6TR Just came up with a method to bond the 40m REF + DIR to the boom. By adding one vac relay to each nema box, I could just e
/archives//html/Topband/2024-07/msg00054.html (8,422 bytes)

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