- 181. Topband: Ground for K9AY Loop (score: 1)
- Author: "K9AY" <k9ay@k9ay.com>
- Date: Wed, 16 Oct 2019 11:35:25 -0500
- Pete, There are lots of references for driving ground rods -- e.g. starting a hole with a shovel and filling with water (as lubricant). For best performance, numerous users have found that 4 radials
- /archives//html/Topband/2019-10/msg00131.html (8,101 bytes)
- 182. Re: Topband: Beverage upgrade question (score: 1)
- Author: "K9AY" <k9ay@k9ay.com>
- Date: Wed, 24 Aug 2022 13:58:45 -0500
- Kenny, You have gotten some good commments already, but I'll add my two cents. It's not always RDF that matters -- it's the shape and direction of the pattern. Remember that a pair in echelon will pu
- /archives//html/Topband/2022-08/msg00008.html (8,881 bytes)
- 183. Re: Topband: Shape and height of K9AY loops (score: 1)
- Author: "K9AY" <k9ay@k9ay.com>
- Date: Sat, 21 Jan 2023 12:02:58 -0600
- Pete, 1) Larger size increases the signal strength, but may reduce F/B on 80M. If your emphasis is 160M, the loop can be much larger, up to 1/4-wave of wire. The optimum terminating resistance will c
- /archives//html/Topband/2023-01/msg00109.html (8,091 bytes)
- 184. Re: Topband: K9AY minimum spacing from TX (score: 1)
- Author: "K9AY" <k9ay@k9ay.com>
- Date: Thu, 7 Dec 2023 12:40:24 -0600
- Ash, The answer is "as far as necessary"! There seems to be a lot of variation in the degree of interaction with towers and other antennas. Every QTH is different. I suppose 100 feet is a good starti
- /archives//html/Topband/2023-12/msg00031.html (7,830 bytes)
- 185. Re: Topband: Low frequency RX antenna (score: 1)
- Author: "K9AY" <k9ay@k9ay.com>
- Date: Sat, 5 Oct 2024 13:49:11 -0500
- I have a few questions about the VE3DO loop as described at:http://www.k3lr.com/engineering/VE3DO/OptimizedDOLoop.pdf -- With reference to Figure 1, are the 9:1 transformer and termination resistor l
- /archives//html/Topband/2024-10/msg00035.html (11,383 bytes)
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