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101. Re: Topband: Building a practical vertical from Al tubing (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Thu, 5 Jan 2006 08:57:22 -0800; Some recent experiments with irrigation tubing: All tubing .050 inch wall. A 60 foot vertical with the bottom half 3" and the top half 2" can be walked up (actually did this). A 90 foot vertical wit; /archives//html/Topband/2006-01/msg00070.html (9,579 bytes)
102. Re: Topband: Building a practical vertical from Al tubing (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Thu, 5 Jan 2006 12:13:03 -0800 (PST); Cut a 4 inch length of PVC pipe the same size as the irrigation tubing. Slit it lengthwise with a table saw blade that will remove 1/4 inch or so of material. Stick a screwdriver in the gap to spread; /archives//html/Topband/2006-01/msg00079.html (9,689 bytes)
103. Re: Topband: Topband Radios (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Thu, 5 Jan 2006 18:56:30 -0800 (PST); I love the APF on my 1000D as well. It is a make or break factor for many QSO's. However, being an audio filter, you could reverse engineer the filter in the 1000D and retrofit it to any rig in the h; /archives//html/Topband/2006-01/msg00087.html (7,578 bytes)
104. Re: Topband: Bailing twine and guy stuff like that (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Sun, 8 Jan 2006 22:14:37 -0800; The baler twine around here is definitely UV stabilized, according to the manufacturers, hence the orange color. Bridon's web site also shows photodegradable baler twine that is designed to fall apa; /archives//html/Topband/2006-01/msg00105.html (7,908 bytes)
105. Re: Topband: Vertical construction (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Sun, 8 Jan 2006 22:17:51 -0800; I just built two verticals like that last month. 4" to 30 ft, then 3" to 60 ft, then 2" to 90 ft. Raised 'em up in 1 minute with a 4" 30 ft falling derrick. Nothing to it. Rick N6RK ________________; /archives//html/Topband/2006-01/msg00106.html (7,570 bytes)
106. Re: Topband: Vertical construction (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Mon, 9 Jan 2006 08:46:10 -0800; The guys are attached Not sure what you're saying here. Does the bowline go around the irrigation tubing, or just the hose clamp? I'm concerned if the guys tension would have to be handled by the hos; /archives//html/Topband/2006-01/msg00111.html (8,059 bytes)
107. Re: Topband: Franklin Antenna Design (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Fri, 13 Jan 2006 09:03:14 -0800; WCCO (although lower in FWIW, we have copied both of those stations from the west coast using a 500 ft beverage, so they must be doing something right. Rick N6RK _____________________________________; /archives//html/Topband/2006-01/msg00198.html (7,573 bytes)
108. Re: Topband: Calling without hearing (was CQ 160 WW) (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Tue, 31 Jan 2006 20:45:59 -0800; Stations will call CQ higher when S&P'ers listen higher. In a contest a few weeks ago, I called CQ on the lowest QRM free frequency, which was about 1905. I got very few replies, and I know my signa; /archives//html/Topband/2006-02/msg00004.html (8,121 bytes)
109. Re: Topband: FairRite Products 2873000202 (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Sat, 4 Feb 2006 22:19:55 -0800 (PST); Minicircuits coats their cores with "Parylene". The cores are conductive like FairRite73 and are in fact probably similar material. A long time ago, a batch of uncoated cores managed to find their wa; /archives//html/Topband/2006-02/msg00087.html (8,961 bytes)
110. Re: Topband: high power filters (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 28 Feb 2006 12:01:02 -0800 (PST); You normally want an inductor input filter so that the FET can clip if it wants to, but no current will be drawn at harmonic frequencies. For a given peak to peak voltage, a square wave has 16/( pi s; /archives//html/Topband/2006-02/msg00234.html (8,264 bytes)
111. Re: Topband: high power lowpass filter (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 28 Feb 2006 13:38:48 -0800 (PST); You can look at the schematics for the Intech COM-1000 amplifier on my web site (www.n6rk.com). Although it is very conservatively rated at 1 kW, I run it at 1.5 kW all the time. I reverse engineered; /archives//html/Topband/2006-02/msg00238.html (7,463 bytes)
112. Re: Topband: Testing RX Antennas "Out of Season" WWV 2.5 MHz (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Fri, 17 Mar 2006 08:08:11 -0800; I have been using WWV @ 2.5 MHz as a beacon for antenna testing. I even made loop antennas that can be tuned to either 1.83 or 2.5 Mhz. Rick N6RK _______________________________________________ Topba; /archives//html/Topband/2006-03/msg00129.html (7,826 bytes)
113. Re: Topband: LBOW & WAS (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Thu, 30 Mar 2006 18:45:54 -0800 (PST); Coincidentally, I just took the plunge and joined LOTW. I uploaded 11000 QSO's and got 2500 QSL's. Wow, almost 1 in 4 matched. But still nothing from ND, RI, WY, or ME on 160 meters, even though I ha; /archives//html/Topband/2006-03/msg00218.html (9,321 bytes)
114. Topband: Simplified LOTW instructions in response to many requests (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Fri, 31 Mar 2006 21:37:03 -0800; Simplified Logbook of The World (LOTW) instructions. Total working time under an hour. By Rick Karlquist N6RK First 12 steps you only do once. Steps 1-6, <15 minutes 1. Create directory My Documents/; /archives//html/Topband/2006-04/msg00001.html (9,576 bytes)
115. Re: Topband: Assembly of Softrock V6 for 160m (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Fri, 14 Apr 2006 18:05:30 -0700 (PDT); Actually, there are also 10 SMT capacitors. However, they are huge (1206 size). I don't know what equipment you have, but all you need is a soldering iron with a small tip. I had no trouble soldering; /archives//html/Topband/2006-04/msg00036.html (7,983 bytes)
116. Re: Topband: QST Jun 06 RX Loop (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Thu, 18 May 2006 06:56:51 -0700; n Explanation: the ferrite beads are also surrounding the inner "antenna". So that "explains" why it goes dead. Rick N6RK _______________________________________________ Topband mailing list Topband@; /archives//html/Topband/2006-05/msg00045.html (8,917 bytes)
117. Re: Topband: Phased Vertical Arrays versus Phased Beverages (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Mon, 24 Jul 2006 09:25:51 -0700; I have tried both. The phased verticals simply worked exactly as modeled the first time. I never could get the beverages to phase properly in either end fire or broadside. YMMV. Rick N6RK __________; /archives//html/Topband/2006-07/msg00041.html (7,925 bytes)
118. Re: Topband: Beverage versus K9AY versus short verticals (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Tue, 25 Jul 2006 17:42:45 -0700; The beverage is the way to go to reject stateside QRM. If I am listening to the east coast on a beverage, stations off the side are just inaudible, even big guns. My beverages are only 400 feet and; /archives//html/Topband/2006-07/msg00048.html (7,130 bytes)
119. Re: Topband: (no subject) (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Wed, 9 Aug 2006 17:35:27 -0700 (PDT); I used to use DC on the coax to control my beverages. As Tom says, if you get any water in the connectors, or in the coax because a critter chewed on it, the noise will be S9+. If you do not have DC; /archives//html/Topband/2006-08/msg00074.html (8,215 bytes)
120. Re: Topband: radial length (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>(by way of BillTippett <btippett@alum.mit.edu>); Date: Wed, 04 Oct 2006 13:24:01 -0400; I have a 230 foot diameter ground screen having 3'x3' squares. When I first built it, I put a 40 meter vertical in the middle of it and drove it against the center junction of the grid. The drive imp; /archives//html/Topband/2006-10/msg00035.html (7,706 bytes)

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