- 1. [TowerTalk] Which beam/s? (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Fri, 14 Jul 2006 11:26:52 +0200
- Hi All I've been licensed for 5 years now and have done a fair amount of operating, especially contesting, but only with wire antennas. I've finally bought a new house where I can put up a tower and
- /archives//html/Towertalk/2006-07/msg00493.html (9,297 bytes)
- 2. [TowerTalk] Building a "little pistol" contest station and theC-31XR (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Fri, 6 Oct 2006 13:03:46 +0200
- A couple of months ago, I posted asking about antenna suggestions for my "little pistol" contest station. Thanks to all those who replied. This post summarizes my plans (comments welcome), with a fol
- /archives//html/Towertalk/2006-10/msg00174.html (9,554 bytes)
- 3. Re: [TowerTalk] Delta loop too long (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Tue, 10 Oct 2006 09:24:45 +0200
- Hi Gerry Yes you can add capacitance - I suggest two equal value capacitors, one at each side of the feed-point. (Not sure exactly what you mean by the "baseline wire" I'm afraid) I did a rough NEC m
- /archives//html/Towertalk/2006-10/msg00287.html (8,473 bytes)
- 4. Re: [TowerTalk] Balun on a vertical (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Tue, 10 Oct 2006 17:06:35 +0200
- Hi Duncan I had a look at the website, and the antennas appear to be groundplane verticals, using two radials and fed with open wire line or similar. The GP 80/10 is 9.8m tall, and specified for 80m
- /archives//html/Towertalk/2006-10/msg00320.html (10,662 bytes)
- 5. [TowerTalk] 304 vs 316 Stainless Steel for Mast (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Tue, 17 Oct 2006 14:45:26 +0200
- I'm setting up a new tower with an F-12 C-31XR (effective area 1 sq. m) mounted 200mm above the thrust bearing, and a Delta-240 (effective area 0.4 sq. m) mounted 2m above that. I've calculated the t
- /archives//html/Towertalk/2006-10/msg00456.html (7,360 bytes)
- 6. Re: [TowerTalk] Matching a Delta Loop (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Thu, 19 Oct 2006 07:46:18 +0200
- A 1/4 wave section of 72 Ohm coax will give you 66 Ohms, for an SWR of 1.3. Andrew ZS6AAA I hastily threw together a 30 meter Delta Loop this summer in order to get KH8SI in the log for a new one on
- /archives//html/Towertalk/2006-10/msg00518.html (8,624 bytes)
- 7. Re: [TowerTalk] Declination Question (True North) (score: 1)
- Author: "Andrew Roos" <Andrew.Roos@poynting.co.za>
- Date: Thu, 2 Nov 2006 13:00:42 +0200
- Hi John The magnetic variation of Reina Beatrix International Airport in Aruba is 9 degrees West. This means that magnetic north is 9 degrees West of true North. So true North will be at bearing 009
- /archives//html/Towertalk/2006-11/msg00037.html (7,658 bytes)
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