Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+RG\-6\s+Delay\s+cables\s*$/: 18 ]

Total 18 documents matching your query.

1. Topband: RG-6 Delay cables (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Wed, 8 Apr 2020 17:37:47 +0000
Good morning from Oregon Top-Band people, I decided to re-do some previous tests of the common 75 ohm RG-6 cable I use and is used for delay cables in many places for top-band receiving systems. I ju
/archives//html/Topband/2020-04/msg00029.html (8,125 bytes)

2. Re: Topband: RG-6 Delay cables (score: 1)
Author: "tony.kaz--- via Topband" <topband@contesting.com>
Date: Wed, 8 Apr 2020 14:29:43 -0400
Lee, Tnx for the info and taking the time for the test. The differences are in the noise level. Stay safe N2TK, Tony Good morning from Oregon Top-Band people, I decided to re-do some previous tests o
/archives//html/Topband/2020-04/msg00031.html (9,705 bytes)

3. Re: Topband: RG-6 Delay cables (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Wed, 8 Apr 2020 11:44:13 -0700
Great work, Lee. Thanks. 73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2020-04/msg00032.html (7,596 bytes)

4. Re: Topband: RG-6 Delay cables (score: 1)
Author: "Mike Smith VE9AA" <ve9aa@nbnet.nb.ca>
Date: Wed, 8 Apr 2020 15:48:57 -0300
Interesting Lee. I guess I never thought anything about delay lines in our weather here. I have RG-6-like cables on all my 4-squares. I was unaware electrons cared whether it was +35*C or -35*C (or g
/archives//html/Topband/2020-04/msg00033.html (7,144 bytes)

5. Re: Topband: RG-6 Delay cables (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Wed, 8 Apr 2020 12:10:50 -0700
Hi Mike, The possible variables are variations in the electrical properties of the transmission line with temperature, which are factors of the materials it's made with. BTW -- it's not the particle
/archives//html/Topband/2020-04/msg00034.html (8,395 bytes)

6. Re: Topband: RG-6 Delay cables (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Wed, 8 Apr 2020 19:28:13 +0000
Hi Mike, I make the Hi-Z Antennas receiving arrays and I am always looking for ways to make them work better. Attention to detail has been the key to success in my endeavors. I had made some early te
/archives//html/Topband/2020-04/msg00035.html (10,440 bytes)

7. Re: Topband: RG-6 Delay cables (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Wed, 8 Apr 2020 12:49:28 -0700
Cable loss was -.61 dB at 59 Deg. F, And -.58 dB at an averaged cable temperature of 23 Deg. F. 59 Deg. F 23 Deg. F 1 - 74.59 DEG -74.60 DEG. 2 - 74.59 DEG -74.60 DEG. 3 - 74.59 DEG -74.60 DEG. 4 - 7
/archives//html/Topband/2020-04/msg00036.html (9,537 bytes)

8. Re: Topband: RG-6 Delay cables (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Wed, 8 Apr 2020 12:55:01 -0700
On 4/8/2020 12:28 PM, Lee STRAHAN wrote: What I do know about that also is mathematically those 8 elements theoretically can produce an RDF of right at 16 dB. The rub is the element amplitudes and ph
/archives//html/Topband/2020-04/msg00037.html (8,637 bytes)

9. Re: Topband: RG-6 Delay cables (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Wed, 8 Apr 2020 20:28:21 +0000
Hi Rick, Agreed, the numbers surely seemed too good to be true. I also researched cable delays versus temperature at various manufacturers. I found no data at the low bands we use. I found just enoug
/archives//html/Topband/2020-04/msg00038.html (9,844 bytes)

10. Re: Topband: RG-6 Delay cables (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Wed, 8 Apr 2020 13:59:58 -0700
Even if the copper center conductor expands, the way the cable connectors are made allows the copper to simply push in the connector past the connection point maintaining its physical length. Very a
/archives//html/Topband/2020-04/msg00039.html (8,896 bytes)

11. Re: Topband: RG-6 Delay cables (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Wed, 8 Apr 2020 21:11:19 +0000
Robin WA6CDR mentioned this to me in an earlier exchange this AM. It was not me. Should have mentioned that before. Sorry Robin, You the Man! Lee K7TJR Very astute. You may have explained this parado
/archives//html/Topband/2020-04/msg00040.html (9,261 bytes)

12. Re: Topband: RG-6 Delay cables (score: 1)
Author: Kees Nijdam <clnijdam@knid.nl>
Date: Wed, 8 Apr 2020 23:09:34 +0200
To obtain 40 dB cancellation, the maximum amplitude difference between the signals is 1% and the maximum phase difference is 8 degrees. Verzonden vanuit Mail voor Windows 10 Van: Richard (Rick) Karlq
/archives//html/Topband/2020-04/msg00041.html (9,111 bytes)

13. Re: Topband: RG-6 Delay cables (score: 1)
Author: donovanf@starpower.net
Date: Wed, 8 Apr 2020 21:28:23 -0400 (EDT)
RG-17 has the same problem, but the Type LC connector (a giant F connector) solved the migration problem the same way the F connector does. 73 Frank W3LPL -- Original Message -- Very astute. You may
/archives//html/Topband/2020-04/msg00042.html (8,812 bytes)

14. Re: Topband: RG-6 Delay cables (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Wed, 8 Apr 2020 21:44:24 -0500
Great job Lee 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com Even if the copper center conductor expands, the way the cable connectors are made allows the copper to simply push in the connector
/archives//html/Topband/2020-04/msg00043.html (9,697 bytes)

15. Re: Topband: RG-6 Delay cables (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Thu, 9 Apr 2020 03:57:23 +0000
More on the cable testing, Thinking along the lines Rick was I decided to retest the same cable to see if the results were repeatable. The original phase shift for both room temperatures was 59 deg.
/archives//html/Topband/2020-04/msg00044.html (10,872 bytes)

16. Re: Topband: RG-6 Delay cables (score: 1)
Author: Mike Waters <mikewate@gmail.com>
Date: Thu, 9 Apr 2020 12:02:48 -0500
One thing that hasn't been mentioned here is how the aluminum shield, jacket, and dielectric behaves. I'm pretty sure that the CoE/°F of aluminum is *more than twice* that of copper and steel. I am s
/archives//html/Topband/2020-04/msg00046.html (9,484 bytes)

17. Re: Topband: RG-6 Delay cables (score: 1)
Author: K9FD <merv.k9fd@gmail.com>
Date: Thu, 9 Apr 2020 07:19:35 -1000
Ever see RG6 with a solid aluminum shield? One thing that hasn't been mentioned here is how the aluminum shield, jacket, and dielectric behaves. I'm pretty sure that the CoE/°F of aluminum is *more t
/archives//html/Topband/2020-04/msg00047.html (9,796 bytes)

18. Re: Topband: RG-6 Delay cables (score: 1)
Author: Mike Waters <mikewate@gmail.com>
Date: Thu, 9 Apr 2020 12:37:17 -0500
"Solid" in this context means not braided, and that is what the inner bonded foil shield is in my RG-6 (actually F-6, for CATV). I left out "foil", sorry. 73 Mike W0BTU _________________ Searchable A
/archives//html/Topband/2020-04/msg00048.html (9,660 bytes)

Current List: 1 - 18
Page: [1]
This search system is powered by Namazu