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Total 105 documents matching your query.

41. Re: Topband: BOG (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Tue, 3 Dec 2019 18:21:20 -0500
You sit around in the pub for long thinking these UP? I just built a LOG myself ( Loop on Ground) ... I also modeled a SLOG ( square loop on ground) but decided that it wasn't very good Dave NR1DX pi
/archives//html/Topband/2019-12/msg00015.html (7,665 bytes)

42. Re: Topband: BOG (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Tue, 3 Dec 2019 20:31:17 -0500
You mean it will never be a BAG (Beverage Above Ground)? Dave NR1DX On 12/3/2019 6:49 PM, K4SAV wrote: You won't have any success trying to rename a BOG.  A BOG (Beverage On the Ground) is an accurat
/archives//html/Topband/2019-12/msg00021.html (7,838 bytes)

43. Re: Topband: Temporary antenna suggestion for 160 (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Sun, 15 Dec 2019 21:44:08 -0500
2nd mike's point about the elevated radials if you have the room, and I underscore his point about not connecting the above gnd radials to earth ground and the need for a beefy common mode choke Dave
/archives//html/Topband/2019-12/msg00143.html (9,760 bytes)

44. Re: Topband: Temporary antenna suggestion for 160 (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Thu, 19 Dec 2019 16:03:48 -0500
Frank I agree with you if the elevated radials are "resonant" . However my experience is the direct opposite with non resonant radials for my elevated system. Mine are 90' long for 160M. So far this
/archives//html/Topband/2019-12/msg00197.html (15,196 bytes)

45. Topband: 20kv 500pf....Re: de n7dd (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Thu, 9 Jan 2020 04:25:53 -0500
Larry You could always use two 10KV 1000pf in series might be easier to find Dave NR1DX manuals@artekmanuals.com On 1/8/2020 11:35 PM, Larry via Topband wrote: does anyone know of a HV (20KV) capacit
/archives//html/Topband/2020-01/msg00091.html (7,213 bytes)

46. Re: Topband: Topband resource (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Wed, 15 Jan 2020 11:18:57 -0500
Roger Apples and oranges Your antenna is not a dipole but rather an Inverted V . Inverted V's have a significant "vertical" radiation component compared to a dipole I am not sure how you can compare
/archives//html/Topband/2020-01/msg00238.html (9,803 bytes)

47. Re: Topband: FCP results (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 20 Jan 2020 09:25:23 -0500
Richard Glad to hear you are having good results with your FCP. What is the basis for your estimate of a 4-6 db improvement? Which prior antenna configuration was your improvement based on (or i.e. w
/archives//html/Topband/2020-01/msg00270.html (7,674 bytes)

48. Re: Topband: Nasty QRM From ?? (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 24 Jan 2020 09:17:00 -0500
Dick There are many sources that can generate this kind of "noise" . More common of recent are variable speed blower motors in modern furnaces and central A/C units. Next are cheap switch mode power
/archives//html/Topband/2020-01/msg00306.html (9,129 bytes)

49. Re: Topband: Beverage performance VS term resistor (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 24 Jan 2020 09:21:22 -0500
Steve I am curious, what antenna modeling program are you using that gives direct readout in RDF? Or are you  "estimating"  it from the antenna graphical pattern? Dave NR1DX The recent experiments wi
/archives//html/Topband/2020-01/msg00307.html (10,006 bytes)

50. Re: Topband: Beverage performance VS term resistor (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 24 Jan 2020 09:43:39 -0500
Thanks...I did not know that. I am running Eznec+ 6.0 here which is based on a version of NEC2 but the GUI doesn't address RDF ( will have to give Lewellyn a poke about that 8^) Dave NR1DX I use 4nec
/archives//html/Topband/2020-01/msg00309.html (10,941 bytes)

51. Topband: RDF vs F/B (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 24 Jan 2020 09:59:43 -0500
Steve et all I think both characteristics of receiving antennas are important depending on your location and the types of noise you are looking to "minimize" For those of you (and I at one time)  who
/archives//html/Topband/2020-01/msg00310.html (7,636 bytes)

52. Re: Topband: ARRL CW Contest (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 17 Feb 2020 13:09:51 -0500
NR1DX: Equipment: 1400W + 60' (20M) high  "T" with 3 elevated radials + Bevs & BOGs Location: Near Tampa Florida Here in Florida, except for Africa and the Carib, we typically do not enjoy the same g
/archives//html/Topband/2020-02/msg00146.html (10,394 bytes)

53. Re: Topband: 300 ohm twin lead for bidirectional Beverage antennas (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Sat, 29 Feb 2020 13:56:31 -0500
Since the relevant portion of the original post was not quoted not sure what the original problem was ....but If your looking for an "easy" and reliable solution for a bi-directional beverage in a si
/archives//html/Topband/2020-02/msg00278.html (12,583 bytes)

54. Re: Topband: Ground Conductivity (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 23 Mar 2020 18:45:23 -0400
On 160M the " skin depth" of ground goes beyond the grass ...so it depends on more than just your yard but also the type of soil underneath, how often it is watered , fertilized etc etc. What are you
/archives//html/Topband/2020-03/msg00290.html (8,358 bytes)

55. Re: Topband: Ground Conductivity (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Tue, 24 Mar 2020 07:21:05 -0400
Ahhh .......but what about vertical antennas with elevated radials ????? www.antennasbyn6lf.com/files/ground_skin_depth_and_wavelength.pdf Rudy is a great reference for anything he's chosen to study.
/archives//html/Topband/2020-03/msg00315.html (10,018 bytes)

56. Re: Topband: Spectrum (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 29 May 2020 13:19:22 -0400
Rick I have had Spectrum in the past but dont a tthe moment , never had a problem...BUT a lot of vatables can play inot this This can be a function of grounds ( at the radio and at the Spectrum distr
/archives//html/Topband/2020-05/msg00126.html (29,948 bytes)

57. Re: Topband: Some experiments with a short beverage, not succeeding very well (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Tue, 30 Jun 2020 16:59:44 -0400
Mark Tell us more about the transformer? My own experience is that core material and impedance matching at the frequency of interest often pays off. I have a 200' BOG (N-S) and a 460ft x 6ft Beverage
/archives//html/Topband/2020-06/msg00074.html (11,923 bytes)

58. Topband: BOG Front to back (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Sat, 12 Sep 2020 09:35:41 -0400
Mike I have taken the liberty of changing to subject line to more accurately reflect the content of your reply on the Waller Flag thread After much reading and a lot of personal experience and experi
/archives//html/Topband/2020-09/msg00029.html (12,207 bytes)

59. Re: Topband: Good Conditions, Little Activity (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Fri, 9 Oct 2020 14:10:00 -0400
DELETE, DELETE DELETE AT LEAST CHANGE TO SUBJECT LINE ON THE THREAD IF YOU GUYS ARE GOING TO TURN THIS INTO A FT8 BASHING SESSION , WHICH AS I RECALL THE MODERATOR/LIST OWNER BANNED LAST YEAR TALK AB
/archives//html/Topband/2020-10/msg00068.html (12,495 bytes)

60. Re: Topband: 80 and 160 (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 12 Oct 2020 19:18:27 -0400
Ron et all Same here not the first DX station at our ( FL ) Sunrise. I called a couple of times and did not even show up in VK/ZL on PSK Reporter which I usually do at sunrise. I then slid up to 80 a
/archives//html/Topband/2020-10/msg00094.html (7,941 bytes)

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