Search String: Display: Description: Sort:

Results:

References: [ +from:rick@area.com: 9 ]

Total 9 documents matching your query.

1. Topband: Short Beverages (score: 1)
Author: rick@area.com (Rick Karlquist)
Date: Sat, 6 Jan 2001 08:57:03 -0800
I have three 550 ft (~1 wavelength on 160) Beverages in a triangle, with feeds at both ends (6 directions spaced 60 degrees). The array worked great in the Stew Perry, as usual. However, the array al
/archives//html/Topband/2001-01/msg00054.html (7,347 bytes)

2. Topband: re: dual band array (score: 1)
Author: rick@area.com (Rick Karlquist)
Date: Tue, 16 Jan 2001 21:12:12 -0800
I currently switch my 90 foot toploaded vertical between 40, 80, and 160 meters using vacuum relays at the 30 and 60 foot point. They are latching types, so they just need to be pulsed. There are coi
/archives//html/Topband/2001-01/msg00172.html (7,233 bytes)

3. Topband: re: Ultralinear amps (score: 1)
Author: rick@area.com (Rick Karlquist)
Date: Wed, 24 Jan 2001 22:14:08 -0800
If you look in the Anzac catalog at the AM-123 amplifier, it cites a patent (long since expired) that protects it. I have read the patent and it goes into so much detail it is practically a contruct
/archives//html/Topband/2001-01/msg00232.html (7,548 bytes)

4. Topband: Beverage height experiment results (score: 1)
Author: rick@area.com (Rick Karlquist)
Date: Wed, 22 Nov 2000 09:16:29 -0800
Over the past several years I have experimented with various Beverage antennas at heights of 5 and 10 feet. There was anecdotal evidence that the 5 ft ones outperformed the 10 foot ones, and that eve
/archives//html/Topband/2000-11/msg00132.html (9,634 bytes)

5. Topband: radial wire (score: 1)
Author: rick@area.com (rick@area.com)
Date: 11 Aug 2000 04:20:20 -0000
Here are the results of my radial wire shopping: Magnet wire: McMaster-Carr, $2 to $3 a pound Surplus hookup wire: $1 to $2 a pound Aluminum electric fence wire: Home Depot, 1 cent a foot You don't n
/archives//html/Topband/2000-08/msg00033.html (6,948 bytes)

6. Topband: 90 ft vertical photos on web (score: 1)
Author: rick@area.com (rick@area.com)
Date: 17 Feb 2000 23:57:09 -0000
I have now placed on my web site <<http://www.karlquist.com>> photos, diagrams and text describing my 90 foot irrigation tubing vertical and the 1000 ft of homebrew open wire line that feeds it. I wi
/archives//html/Topband/2000-02/msg00128.html (7,033 bytes)

7. Topband: Measuring ground screen resistance (score: 1)
Author: rick@area.com (rick@area.com)
Date: 13 Sep 1999 04:16:52 -0000
There was some recent discussion about chicken wire ground screens vs conventional radials. What I would like to know is: how do you measure any proposed ground screen to determine its ground losses?
/archives//html/Topband/1999-09/msg00048.html (7,565 bytes)

8. TopBand: re: 160 propagation to Idaho (score: 1)
Author: rick@area.com (rick@area.com)
Date: 15 Feb 1999 05:58:04 -0000
To: <topband@contesting.com> Here is some anecdotal information that may shed some light on this issue. I live in the SF bay area but my main station is in the central valley. The bay area is similar
/archives//html/Topband/1999-02/msg00075.html (8,292 bytes)

9. TopBand: beverage transformers (score: 1)
Author: rick@area.com (rick@area.com)
Date: 27 Feb 1999 03:25:17 -0000
With the recent discussion of beverage matching transformers, I am curious about why everyone builds their own matching transformers. On my 600 ft beverage, I am using a little RF Prime/Mini-Circuits
/archives//html/Topband/1999-02/msg00146.html (7,128 bytes)


This search system is powered by Namazu