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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Quad\s+Element\s+Tuning\s*$/: 22 ]

Total 22 documents matching your query.

1. [TowerTalk] Quad Element Tuning (score: 1)
Author: d@peak.org (6)
Date: Fri, 07 Sep 2001 07:45:38 -0700
Hi All, I currently am completing construction of my first quad beam antenna. I am looking for suggestions about how best to tune the elements. Here are a few specifics about my system: 1) It is a 2-
/archives//html/Towertalk/2001-09/msg00276.html (9,388 bytes)

2. [TowerTalk] Quad Element Tuning (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Fri, 07 Sep 2001 15:41:09 +0000
Paul, Here are the "tuning" instructions GEM quad supplied. All elements except driven elements have a two wire stub hanging down shorted at bottom. Stub lengths of 15" on 20M, 12" on 15" and 12" on
/archives//html/Towertalk/2001-09/msg00278.html (12,170 bytes)

3. [TowerTalk] Quad Element Tuning (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Fri, 7 Sep 2001 10:40:01 -0600
W8JI reports that self resonant elements tuned to the LOWEST frequency used make good Quad reflectors. You could start with the formula length (1050?/F) and tune the reflectors for zero reactance at
/archives//html/Towertalk/2001-09/msg00281.html (10,890 bytes)

4. [TowerTalk] Quad Element Tuning (score: 1)
Author: rthorne@tcac.net (Richard Thorne)
Date: Fri, 07 Sep 2001 11:05:12 -0500
Lightning Bolt quad's uses ths sceme. It works very well as its very easy to pull the wire through. Once the wire is in and attached the feed point or a tuning bar for the reflector is installed, the
/archives//html/Towertalk/2001-09/msg00282.html (10,320 bytes)

5. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7LXC@aol.com (K7LXC@aol.com)
Date: Sat, 8 Sep 2001 02:14:21 EDT
Amen. You can burn a LOT of time twiddling with the tuning. That's why I switched to yagis. Cheers, Steve K7LXC Tower Tech List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylo
/archives//html/Towertalk/2001-09/msg00300.html (8,631 bytes)

6. [TowerTalk] Quad Element Tuning (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Sat, 08 Sep 2001 10:44:14 +0000
Steve, Have you tried tuning the Force 12 coil/hairpin combo on their 40M yagi antennas? Equally a pain. IMHO potential quad owners need a tilt over tower, a HAZER tower or a friend with a cherry pic
/archives//html/Towertalk/2001-09/msg00303.html (9,352 bytes)

7. [TowerTalk] Quad Element Tuning (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Sat, 8 Sep 2001 08:48:14 -0400
If you set the reflector to the lowest possible frequency you plan on using the antenna on without a driven element nearby, it will be set at the frequency where F/B really starts to roll off fast.
/archives//html/Towertalk/2001-09/msg00305.html (10,516 bytes)

8. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7LXC@aol.com (K7LXC@aol.com)
Date: Sat, 8 Sep 2001 11:45:34 EDT
Well, all you have to do is squeeze it in or stretch it out. Typically you can reach it from the tower so it's not too bad but you're right. When I worked at W6ISQ, he had a scaffolding installed tha
/archives//html/Towertalk/2001-09/msg00307.html (9,794 bytes)

9. [TowerTalk] Quad Element Tuning (score: 1)
Author: k7hph@xmission.com (K7HPH)
Date: Sat, 8 Sep 2001 09:55:59 -0600
I had a four element Quad up for about 10 years that was a real DX killer. I used the loop dimensions in Bill Orr's Quad Book and used RG-11 in-line tuning stubs on each band. It was mounted on a 24
/archives//html/Towertalk/2001-09/msg00308.html (11,088 bytes)

10. [TowerTalk] Quad Element Tuning (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Sat, 8 Sep 2001 10:46:36 -0600
SNIP Are you saying that you still can't just "cut and play" with 2L Quads? What about W4RNL's website, or others, for a good set of dimensions. I remember Clark Green (I forgot his call) used to hav
/archives//html/Towertalk/2001-09/msg00309.html (10,079 bytes)

11. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7GCO@aol.com (K7GCO@aol.com)
Date: Sat, 8 Sep 2001 13:03:55 EDT
Amen. You can burn a LOT of time twiddling with the tuning. That's why I switched to yagis. Cheers, Steve K7LXC Tower Tech There is a lot of truth to this--howsomever. This is the year 2001 and some
/archives//html/Towertalk/2001-09/msg00311.html (13,656 bytes)

12. [TowerTalk] Quad Element Tuning (score: 1)
Author: i4jmy@iol.it (Maurizio Panicara)
Date: Sat, 8 Sep 2001 19:28:03 +0200
I don't know what Steve meant, I know that even a 2L multiband quad is a challenge and final F/B fair when some band is close to each other or harmonically related. Modeling and tests proved to me t
/archives//html/Towertalk/2001-09/msg00312.html (10,551 bytes)

13. [TowerTalk] Quad Element Tuning (score: 1)
Author: K3BU@aol.com (K3BU@aol.com)
Date: Sat, 8 Sep 2001 15:51:22 EDT
with I designed 3 el. Quad on 2m model, scaled to low bands had no problem, no tuning necessary, wide bandwidth, 50 ohms impedance, no matching, no stubs. That was for single band (20m version had 30
/archives//html/Towertalk/2001-09/msg00314.html (9,810 bytes)

14. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7GCO@aol.com (K7GCO@aol.com)
Date: Sat, 8 Sep 2001 16:19:39 EDT
sit able Great email ! As I don't have access to 73 mag., is there any chance of being emailed the photo, or seeing it on the web ?? I am thinking of adding a quad section to my website, and this mig
/archives//html/Towertalk/2001-09/msg00315.html (14,794 bytes)

15. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7GCO@aol.com (K7GCO@aol.com)
Date: Sat, 8 Sep 2001 16:43:58 EDT
I don't know what Steve meant, I know that even a 2L multiband quad is a challenge and final F/B fair when some band is close to each other or harmonically related. Modeling and tests proved to me t
/archives//html/Towertalk/2001-09/msg00316.html (11,492 bytes)

16. [TowerTalk] Quad Element Tuning (score: 1)
Author: i4jmy@iol.it (Maurizio Panicara)
Date: Sat, 8 Sep 2001 23:35:35 +0200
Place a 12m director in front of the 10m driven and see what happens using your modeling software, or roughly check how the 12m director lenght converge to a 10m reflector using the typical formulas.
/archives//html/Towertalk/2001-09/msg00318.html (8,904 bytes)

17. [TowerTalk] Quad Element Tuning (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Sat, 08 Sep 2001 22:05:15 +0000
Also had problems with adding 12m quad to a 10-15-17-20M 4 element GEM quad. These four bands coexisted very well even with a single feedline. Looked at it in AO and the patterns on all four bands we
/archives//html/Towertalk/2001-09/msg00319.html (11,630 bytes)

18. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7GCO@aol.com (K7GCO@aol.com)
Date: Sat, 8 Sep 2001 19:41:29 EDT
<< Also had problems with adding 12m quad to a 10-15-17-20M 4 element GEM quad. These four bands coexisted very well even with a single feedline. Looked at it in AO and the patterns on all four bands
/archives//html/Towertalk/2001-09/msg00323.html (11,996 bytes)

19. [TowerTalk] Quad Element Tuning (score: 1)
Author: K7GCO@aol.com (K7GCO@aol.com)
Date: Sat, 8 Sep 2001 20:14:31 EDT
In a message dated 9/8/01 2:33:54 PM Pacific Daylight Time, i4jmy@iol.it writes: << Place a 12m director in front of the 10m driven and see what happens using your modeling software, or roughly check
/archives//html/Towertalk/2001-09/msg00324.html (9,797 bytes)

20. [TowerTalk] Quad Element Tuning (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Sat, 8 Sep 2001 19:01:15 -0600
SNIP SNIP The reason that 12M parasitic elements interact with other bands more than any other combination becomes when you compare the % difference between bands. 28 / 24.9 = 1.1245 for a 12.45% dif
/archives//html/Towertalk/2001-09/msg00325.html (9,768 bytes)


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