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41. Topband: Velocity factor RG6U (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Fri, 30 Nov 2007 11:13:42 +0200
How can the velocity factor of a roll (100m) of RG6 U coax be measured ? I have a grid dip meter (actually gate dip). I assume working on the quoted velocity factor figures of about .78 and then meas
/archives//html/Topband/2007-11/msg00265.html (7,243 bytes)

42. Re: Topband: Velocity factor RG6U (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Sun, 2 Dec 2007 20:58:42 +0200
Thanks to all who replied directly off the reflector. Some say believe the quoted figure, I think rather not as I want to build a small spacing 2 element receiving array. Harry, N4HT, suggested using
/archives//html/Topband/2007-12/msg00011.html (8,824 bytes)

43. Re: Topband: 1/8 wave vertical (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Thu, 27 Dec 2007 20:18:42 +0200
The 160m dilemma: If you can be heard but do not 'hear' well, you are deaf and a crocodile. But if you need the extra db on tx while trying to break the pile up for the rare dx you need? I think do
/archives//html/Topband/2007-12/msg00202.html (8,004 bytes)

44. Re: Topband: Filters and grounding (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 15 Jan 2008 10:36:32 +0200
And Tom replied: I am just wondering here: The outer of the coax and the connectors all have a finite resistance. In the presence of a very strong field, the impedance reduction brought about by anot
/archives//html/Topband/2008-01/msg00112.html (9,792 bytes)

45. Topband: Local noise (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 22 Jan 2008 23:25:56 +0200
Dear Topband reader, it is a well known fact that as a result of poor maintenance by our monopoly electricity supplier, we are suffering 'planned electricity' blackouts. It was during one of these th
/archives//html/Topband/2008-01/msg00161.html (7,693 bytes)

46. Topband: FT1000 MKV Filters (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Fri, 25 Jul 2008 10:28:35 +0200
Good day , I have currently a 500Hz Collins filter and a 250Hz Yaesu filter installed in the main receiver of my FT 1000 MkV. I found that I use the 250Hz filter most of the time for weak dx on 160m,
/archives//html/Topband/2008-07/msg00085.html (6,898 bytes)

47. Topband: RE FT1000 MKV Filters, correction (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Fri, 25 Jul 2008 19:47:15 +0200
Sorry, I DO have the RX DSP turned in in the menu, I just do not use APF, most of the time.There are conditions/qrn where I do use the noise reduction provided by Yaesu, mostly NR C or D on the NR sw
/archives//html/Topband/2008-07/msg00091.html (7,937 bytes)

48. Re: Topband: CQ DX...calling protocol (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 26 Aug 2008 22:47:32 +0200
I agree with the openings, I listened for 2 weeks every possible (dark) moment to work VP6DX, and on my last possible day, for about 3 minutes, I could hear them but they were working EU, then the o
/archives//html/Topband/2008-08/msg00089.html (8,441 bytes)

49. Topband: 160 this morning (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 2 Sep 2008 09:33:03 +0200
Good day Topbanders weekend, my antennas did not suffer damage but I lost a wooden beam and glassfibre roof sections on a carport. Yesterday there was on opening to NA although Tree in Boring could n
/archives//html/Topband/2008-09/msg00003.html (6,855 bytes)

50. Re: Topband: Noise cancellers performance (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 16 Sep 2008 18:12:27 +0200
ANC-4 noise cancellers? How much difference there are in Petr, I have been using an MFJ 1026 for a few years now, thanks to W5IZ. If used correctly, it will perform as designed. The internal pre-amp
/archives//html/Topband/2008-09/msg00042.html (9,291 bytes)

51. Re: Topband: Not so Boring QSO (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Wed, 19 Nov 2008 19:25:14 +0200
I am sometimes not so happy about this good signal to NA, as I may be called a crocodile! I have reduced my power, in fact, for some time now, to match my rx. Normally, the strong stations will make
/archives//html/Topband/2008-11/msg00123.html (8,759 bytes)

52. Re: Topband: 160 Meter Propagation (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 13 Jan 2009 11:54:05 +0200
And: If one could somehow gather chat room reports from all over and if someone could capture this data in a suitable way, maybe we will understand 160m propagation better? 73 Raoul, ZS1REC BTW, qrn
/archives//html/Topband/2009-01/msg00114.html (8,908 bytes)

53. Re: Topband: [Dx-qsl] Claiming 160m DXCC - Sending QSLs (score: 1)
Author: "Raoul Coetzee" <raoulc@smmcape.co.za>
Date: Tue, 26 May 2009 18:50:09 +0200
Merv replied : Hi Merv, If I remember correctly, in the late 70s or early 80s there was a Amateur in the #1 spot on the 160 meter DXCC. None of the regular 160 operaters had ever heard him on the ban
/archives//html/Topband/2009-05/msg00125.html (9,408 bytes)

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