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References: [ +from:dhb@mediaone.net: 12 ]

Total 12 documents matching your query.

1. [Towertalk] Yaesu indicator (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Wed, 6 Mar 2002 21:59:20 -0800
The 2800 rotator controller circuit is, to be polite, a kludge. Besides serving as reference library for bad logic design, slight bends in the dial pointer assembly's electromechanical sensors can ca
/archives//html/Towertalk/2002-03/msg00064.html (9,832 bytes)

2. [TowerTalk] re:Non-traditional antenna designs (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Wed, 30 Jan 2002 19:27:41 -0500
Given that one can vary element lengths but not element spacings, how close to monoband performance can one get with this approach? 73, Dave, AA6YQ Hello: Speaking of non-traditional antennas (or may
/archives//html/Towertalk/2002-01/msg00652.html (8,995 bytes)

3. [TowerTalk] re:Non-traditional antenna designs (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Wed, 30 Jan 2002 23:45:16 -0500
Thanks -- should have thought to look there. penalty at .2 WL is ~1.5 db and at .5 WL is less than .5 db. Best case F/B requires a .3 WL boom, with a 8 db penalty at .2 WL but a serious 25 db penalty
/archives//html/Towertalk/2002-01/msg00662.html (10,036 bytes)

4. [TowerTalk] HF Prop Prediction Software (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Sun, 25 Nov 2001 17:21:12 -0500
A few months back, I released a graphical output package for IONCAP called PropView -- it includes (installs and configures) the IONCAP engine, and is available via www.qsl.net/propview . PropView in
/archives//html/Towertalk/2001-11/msg00517.html (10,310 bytes)

5. [TowerTalk] Yaesu G-2800SDX (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Sat, 27 Oct 2001 01:08:12 -0400
The controller design is a rats nest; it took me hours just to reverse engineer the basic functions. But before you spend much time on this, look for a mechanical problem with the spring contacts in
/archives//html/Towertalk/2001-10/msg00527.html (8,874 bytes)

6. [TowerTalk] FW: Magnetic Declination (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Sat, 22 Sep 2001 12:41:20 -0400
If you know your QTH's latitude and longitude or grid square and your PC's time is accurate (using a freeware internet-accessible atomic clock like AboutTime http://www.arachnoid.com/abouttime/index.
/archives//html/Towertalk/2001-09/msg00592.html (10,899 bytes)

7. [TowerTalk] Yaesu rotators (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Wed, 11 Jul 2001 20:47:23 -0700
I experienced a reduction in rotation speed, but only in one direction. Mechanical switches sense when the positioner is nearing its objective; one of these had moved out of alignment. The circuit de
/archives//html/Towertalk/2001-07/msg00204.html (10,283 bytes)

8. [TowerTalk] EF 420/240 (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Fri, 2 Mar 2001 10:39:34 -0500
I have an EF 420/240 at 80', 10' below a 4BA. Both antennas are D models; I've experienced no mechanical problems since their installation 3 years ago. The weather outside Boston (FN42) has not been
/archives//html/Towertalk/2001-03/msg00065.html (8,584 bytes)

9. [TowerTalk] EF-420/240 (score: 1)
Author: dhb@mediaone.net (Dave, AA6YQ)
Date: Sun, 4 Mar 2001 15:16:31 -0500
Sorry about your disk problems; I hope you were able to recover most of your data. I have a D-model 420/240 at 80', 10' below a 4BA. My QTH is outside Boston (FN42). Pro's: -- no mechanical problems
/archives//html/Towertalk/2001-03/msg00088.html (8,561 bytes)

10. [TowerTalk] great circle map with beam headings (score: 1)
Author: dhb@mediaone.net (Dave Bernstein)
Date: Mon, 5 Oct 1998 21:16:56 -0400
You can construct one centered on any QTH using the facilities at http://www.qth.net/az_html/azproj.shtml. An an example can be found at http://www.ambersoft.com/Amateur_Radio/wayland.jpg. Dave, AA6Y
/archives//html/Towertalk/1998-10/msg00090.html (9,955 bytes)

11. [TowerTalk] Info handling - thanks (score: 1)
Author: dhb@mediaone.net (Dave Bernstein)
Date: Wed, 1 Jul 1998 22:51:13 -0400
Microsoft Outlook provides a "rules wizard" that can be set up to automatically distribute incoming messages to folders based on the contents of the message's "to", "Subject", and "from" fields. Mes
/archives//html/Towertalk/1998-07/msg00059.html (7,784 bytes)

12. Re[2]: [TowerTalk] X9 40m add on kit (score: 1)
Author: dhb@mediaone.net (Dave Bernstein)
Date: Mon, 13 Jul 1998 02:24:30 -0400
Translation: Don't trust anything we put in writing. Translation: I am not responsible for the quality of my company's products. Translation: I don't check the facts before making public statements.
/archives//html/Towertalk/1998-07/msg00368.html (12,028 bytes)


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