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21. Topband: Extreme shunt feed (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Mon, 20 Dec 2004 00:18:47 +0000; I am shunt feeding a 5m roof tower against some elevated radials on 80m. On the top of the tower is a C-3E/A (insulated elements, each band with its own feeder) & at the end of a further 3m of mast t; /archives//html/Topband/2004-12/msg00257.html (8,420 bytes)
22. Re: Topband: How'd you measure that? (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Thu, 06 Jan 2005 00:20:04 +0000; N2EA asked: Bill Tippett, W4ZV, of New London, NC correctly copied code word OMAHA from the N2XE beacon transmitting with a peak carrier power of .0000406 watts. Let's see, here.... that would be 40.; /archives//html/Topband/2005-01/msg00068.html (8,000 bytes)
23. Re: Topband: How'd you measure that? (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Thu, 06 Jan 2005 03:50:21 +0000; W8JI asked: Why does it matter anyway? Doubling the distance can mean more than 10dB change in level, not 3dB. This isn't freespace. The path loss is not in a linear relationship with distance, and n; /archives//html/Topband/2005-01/msg00071.html (8,141 bytes)
24. Re: Topband: Key-clicks FT1000MK-V field ? (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Wed, 19 Jan 2005 00:43:57 +0000; It was once suggested to me that Yaesu's R&D differs in that different teams deal with different products & stick to those products for the life span of the product. You can see disconnects that migh; /archives//html/Topband/2005-01/msg00221.html (7,326 bytes)
25. Re: Topband: FT-847 Clicks (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Wed, 19 Jan 2005 23:43:10 +0000; SM2EKM replied to W4EF's query about key clicks with the FT-847: The FT847 clicks quite a bit on the break side of the CW note. I have measure my 847 and the fall time of the keyed envelope is about; /archives//html/Topband/2005-01/msg00252.html (8,509 bytes)
26. Re: Topband: re: conditions on 160 during contest (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Tue, 01 Feb 2005 00:41:58 +0000; K7TJR posted: Finally after acres of radials and eleven receiving antenna positions, I feel better about living on the west coast for 160.. You guys that can work europe with your dipoles at 30 feet; /archives//html/Topband/2005-01/msg00349.html (9,338 bytes)
27. Re: Topband: Butternut HF2V (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Wed, 02 Feb 2005 02:54:30 +0000; The HF2V works as well as can be expected for a short vertical with base loading. If on the ground, you really need a decent radial system. Ground clutter also takes a bite out of things. Get it up o; /archives//html/Topband/2005-02/msg00029.html (7,841 bytes)
28. Re: Topband: Top Loading of Shunt-fed Tower (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Thu, 10 Feb 2005 12:34:37 +0000; At VR2BG, a 5m roof tower with 3m of mast topped by a SteppIR dipole is used as a vertical on 80 & 160 against a few elevated radials (only one close to reasonance on 160). The feeder to the dipole i; /archives//html/Topband/2005-02/msg00133.html (7,132 bytes)
29. Re: Topband: Aurora Info (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Fri, 04 Mar 2005 01:48:52 +0000; YV5MBX asked: CT1BOH has a page where you can see the most relevant stuff in one go: http://www.qsl.net/ct1boh/propagation.htm 73, VR2BrettGraham _______________________________________________ Topba; /archives//html/Topband/2005-03/msg00038.html (7,362 bytes)
30. Re: Topband: FW: [The Daily DX] 5Z4DZ authorization to operate 160and 30 meterstoday! (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Thu, 24 Mar 2005 00:22:28 +0000; It would be interesting to know what conditions Kenya's telecom authority places on 160m operations. In VR2, it was only in recent times we were allowed more than 10 dBW. In 9M6, we are still limited; /archives//html/Topband/2005-03/msg00210.html (7,155 bytes)
31. Re: Topband: antenna question (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Sat, 20 Aug 2005 18:07:52 +0000; W7DRA asked: For 1992 CQ WW CW from VS6WO we did about the same thing - half-wave wire from 22 floors up, run across street below, fed against whatever was handy on the roof. Since that means the cop; /archives//html/Topband/2005-08/msg00043.html (8,212 bytes)
32. Re: Topband: Tuning elevated radials (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Fri, 16 Sep 2005 23:34:54 +0000; And then described his efforts in balancing current between the radials. I have been thinking about adding common loading coil to elevated radials here (from ON4UN book, refers to K5UL I think) in or; /archives//html/Topband/2005-09/msg00048.html (9,170 bytes)
33. Re: Topband: QRM from ASIA on TOP BAND (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Thu, 13 Oct 2005 23:44:56 +0000; My guess, having not heard anything myself, is that this might be from PLA Navy northern fleet equivalent to their South China Sea base on Hainan that looks to be the source of 40 & 80m OTH radar (ba; /archives//html/Topband/2005-10/msg00085.html (9,091 bytes)
34. Re: Topband: UW0MF re: Asian Jammer (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Mon, 24 Oct 2005 02:09:12 +0000; W4ZV QSPed: As described by the guys in JA, this is not pulse & therefore cannot be OTHR. VR Gov't participates in ITU as part of BY delegation. PRC is signatory to ITU Convention, though like many a; /archives//html/Topband/2005-10/msg00226.html (9,112 bytes)
35. Topband: Re Asian Jammer.. (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Mon, 24 Oct 2005 04:56:25 +0000; VK3ZL lamented: This now makes the 4th band or good chunk of band we have lost to what looks like mainland Chinese intruders. Bob may not realize it, but he has hit upon an angle that should be pursu; /archives//html/Topband/2005-10/msg00234.html (8,017 bytes)
36. Re: Topband: UW0MF re: Asian Jammer (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Mon, 24 Oct 2005 17:29:39 +0000; W4ZV added: What I hear from 1690-1935 kc is some sort of gyrating sound. This is on an 80m GP. It seems to be continuous, with peaks on some frequencies. The gyrations are too fast, but there are sl; /archives//html/Topband/2005-10/msg00263.html (10,294 bytes)
37. Re: Topband: UW0MF re: Asian Jammer (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Tue, 25 Oct 2005 01:22:31 +0000; W8JI added: YB5AQB is definitely hearing pulses. VR2BG is not hearing pulses, nor white noise. JA reports white noise. We're closest to where ever we think this is coming from & unlike the Hainan woo; /archives//html/Topband/2005-10/msg00275.html (8,415 bytes)
38. Re: Topband: K9AY noise question (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Tue, 25 Oct 2005 01:51:46 +0000; NI1N noted: N6KI has been working on suppressing motor noise on his MonstIR. With control line choked at SteppIR dipole at top of mast with torroid & a solenoidal choke at base of roof tower & runnin; /archives//html/Topband/2005-10/msg00276.html (7,492 bytes)
39. Re: Topband: cluster-QSOs Y or N ? (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Sat, 12 Nov 2005 01:29:15 +0000; DF2PY posted: I think maybe Wolf is making a comment by simply posting it. ;^) What do others think? 160m is a tough band at times. Seems that non-radio-means assistance is all the rage nowadays - wi; /archives//html/Topband/2005-11/msg00100.html (8,077 bytes)
40. Re: Topband: Top Ten Reasons for Self-Spotting on Top Band (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Sun, 13 Nov 2005 18:59:47 +0000; Last place I thought I would see folks justifying self-spotting is here. Few posts there where I can't figure out the logic behind the thinking... And where there is some logic to self-spotting, seem; /archives//html/Topband/2005-11/msg00124.html (8,170 bytes)

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