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References: [ +from:gwallner@the-beach.net: 83 ]

Total 83 documents matching your query.

41. Re: Topband: QRQ vs QRS (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 21 Jan 2009 10:40:28 -0500
Lars, My experience from VK9WWI, C6AGU, 5K0T, and my own QSO-s on TB (many of them QRP), is that the optimum speed is between 17 and 23 WPM. At higher speeds dots and entire letters get easily masked
/archives//html/Topband/2009-01/msg00213.html (7,800 bytes)

42. Topband: TB Conditions (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 21 Jan 2009 11:06:36 -0500
G'day Topbanders, Conditions have been excellent during the past few days on TB. I was able to make dozens of EU QSO-s from South Florida using 5 watts. Some EU stations had signals over S9 (SM7BIC,
/archives//html/Topband/2009-01/msg00214.html (7,090 bytes)

43. Re: Topband: Difficult rxing in contest environments in EU (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Mon, 26 Jan 2009 00:34:51 -0500
Wolf, I mostly agree with you: I was in Europe a couple of years ago during the ARRL contest: I could not believe the crowding and the noise. More reason to explore Tree's idea of using more of the b
/archives//html/Topband/2009-01/msg00280.html (8,404 bytes)

44. Re: Topband: FW5RE -- Accidental QSO-s (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Tue, 10 Feb 2009 20:51:13 -0500
Topbanders, Kedves Pista, I have been on both sides of the pile-up and here is how I see this. Firstly, many DXpedition operator can tell you that there are a lot of stations calling who can not hear
/archives//html/Topband/2009-02/msg00051.html (9,762 bytes)

45. Re: Topband: Titanex (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 11 Feb 2009 21:41:21 -0500
Rag, I have been using antennas built around Spider Poles with good results both on DXpeditions and my home QTH. Probably not as tough as the Titanex, but very light. I use them both on DXpeditions
/archives//html/Topband/2009-02/msg00059.html (7,661 bytes)

46. Re: Topband: QSB surfing (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sat, 14 Feb 2009 22:25:39 -0500
Mark, you are right, but I would suggest the following exchange when the DX is not strong: -- Please note the report: send a real report! It gives the DX and idea of his signal and conditions, and if
/archives//html/Topband/2009-02/msg00086.html (8,495 bytes)

47. Topband: VK9GMW DXpedition (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sun, 15 Feb 2009 22:15:46 -0500
G'Day Topbanders, Tomi (HA7RY) and I are heading out to Mellish Reef to operate as VK9GMW. We will be active between Mar 22 and Apr 6. (Dates subject to change due to WX.) We will have a strong TB (a
/archives//html/Topband/2009-02/msg00094.html (6,573 bytes)

48. Re: Topband: nonlinear attenuation along signal path (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Thu, 19 Feb 2009 09:54:30 -0500
Wolf, The problem is probably, as you suggest, attenuation around the gray-line. To launch more ERP one needs to increase power or build a better antenna, or do both. Increasing power is often not pr
/archives//html/Topband/2009-02/msg00109.html (8,831 bytes)

49. Topband: RTTY on 160 from VK9GMW (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sat, 07 Mar 2009 23:10:33 -0500
Dear Topbanders, I am seeking advice on RTTY on 160, indeed, whether there is any demand for RTTY DX on 160. (Frequencies, methods, etc.) I will be on the Mellish Reef DXpedition (VK9GMW) and due to
/archives//html/Topband/2009-03/msg00019.html (6,839 bytes)

50. Re: Topband: RTTY on 160 from VK9GMW (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sun, 08 Mar 2009 14:16:00 -0400
The responses were, 100%, NO - don't waste your time. We will focus on the higher bands with RTTY. TKS to all who have commented. (I feel a bit foolish for even asking but, better to ask now than aft
/archives//html/Topband/2009-03/msg00020.html (6,816 bytes)

51. Topband: Reports -- VK9GMW (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sun, 15 Mar 2009 17:27:00 -0400
G'Day Topbanders, VK9GMW is about to depart for Mellish. We expect to be on the air (first QSO will be in 160) sometime between Mar 22 and 24 (we may spend a few days at Marion Reef waiting for a wea
/archives//html/Topband/2009-03/msg00030.html (6,927 bytes)

52. Topband: VK9GMW Update (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sat, 21 Mar 2009 01:07:00 -0400
G'Day Topbanders, The VK9GMW Mellish Reef DXpedition is stuck on Marion Reef (220 NM SW of Mellish) due to poor weather. Not sure yet when the WX will improve enough for the crossing to Mellish. The
/archives//html/Topband/2009-03/msg00067.html (6,711 bytes)

53. Re: Topband: WOW! conditions this AM (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Tue, 07 Apr 2009 18:31:29 -0400
Conditions were very good last night to NA. Low noise at this end. Not many signals, but the ones that got through were clear and strong. Your 2 W on 80 was a solid 569! See more at http://www.vk9gmw
/archives//html/Topband/2009-04/msg00013.html (7,407 bytes)

54. Re: Topband: lift station noise (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 08 Apr 2009 22:29:36 -0400
If the motor is supplied via a variable frequency drive (VFD) it will require some special filtering! These drives input single phase (but sometimes three phase) 230 V 60 Hz AC and output a vartiable
/archives//html/Topband/2009-04/msg00021.html (9,795 bytes)

55. Topband: VK9GMW Antenna (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sat, 25 Apr 2009 19:57:28 -0400
Dear Topbanders, I have been getting a lot of requests for info on the antenna we used on Mellish. It can be found at http://vk9gmw.com/documents/VK9GMW_ANTENNA.pdf. 73, George AA7JV ________________
/archives//html/Topband/2009-04/msg00075.html (6,450 bytes)

56. Re: Topband: Gas well pump motor (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Sat, 02 May 2009 12:50:28 -0400
Art, From your description of the noise it is hard to say what generates it, but I got a feeling that it may come from a Variable Frequency Drive. These are essentially solid state AC power supplies
/archives//html/Topband/2009-05/msg00004.html (8,046 bytes)

57. Re: Topband: Gas well pump motor (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Mon, 04 May 2009 10:59:37 -0400
Jim, A third method is shielding the AC cables going to the motor. There is a special shielded VFD cable available but it is amazingly expensive. I found that RG213 coax works great. You need to use
/archives//html/Topband/2009-05/msg00016.html (7,562 bytes)

58. Re: Topband: 1.99 and beacons (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 06 May 2009 09:00:29 -0400
My QTH is at EL95. It is probably the most distant CONUS low band station from Tree's QTH. Almost a DX. Both theory and intuition suggest that 1.99 MHz should be better for long distance communicatio
/archives//html/Topband/2009-05/msg00023.html (7,465 bytes)

59. Re: Topband: Probably-dumb question re current mode chokes on RX antennas (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Tue, 19 May 2009 08:37:54 -0400
Pete, Current flowing on the outside of the coax shield causes radiation. The energy radiated by the coax could be picked up by the RX antenna. The goal is to reduce the current. The chokes reduce th
/archives//html/Topband/2009-05/msg00077.html (8,735 bytes)

60. Re: Topband: Common mode chokes (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Mon, 13 Jul 2009 07:53:44 -0400
The RX antenna needs the feedline because we have placed it away from the shack/house -- all the noise sources. In a real world environment the length of the line is a given; we do all the things de
/archives//html/Topband/2009-07/msg00043.html (9,625 bytes)

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