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Total 80 documents matching your query.

41. Re: [TowerTalk] Cablewave hardline (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Sat, 10 Sep 2016 15:39:45 -0700
I'd like to piggyback on this question. I also have been searching for some time to no avail for this Cablewave Systems heliax cable: This is on a taped-on label - C371-21-27 1 16733 8L Serial # 0029
/archives//html/Towertalk/2016-09/msg00230.html (8,976 bytes)

42. Re: [TowerTalk] Small quantity Bent pin shackles now available (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Mon, 17 Oct 2016 13:16:48 -0700
I have just the insulators for $2 each (plus ship), with at least 100 in stock... -Doug W6DSR A few months ago I posted that I had cured OWA Yagi VSWR rotational issues by isolating the big grip pref
/archives//html/Towertalk/2016-10/msg00238.html (8,454 bytes)

43. Re: [TowerTalk] Fwd: Screened walls and floors (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Tue, 6 Dec 2016 17:42:13 -0800
I went to the effort to put all my radio equipment in a 40' shipping container where I used aluminum diamond plate on the marine plywood floor not to keep EMI from getting in , but to keep all the sw
/archives//html/Towertalk/2016-12/msg00080.html (10,489 bytes)

44. Re: [TowerTalk] Is a cellular phone tower in the nearby vicinity a problem for a ham? (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Sun, 12 Feb 2017 13:17:10 -0800
I have 5 GHz commercial backhaul equipment on my property, with the 48 VDC power feed as described by K8LX. The major noise pollution is from the switching supplies in the backs of the antennas thems
/archives//html/Towertalk/2017-02/msg00275.html (9,839 bytes)

45. Re: [TowerTalk] OCFD (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Sat, 25 Mar 2017 11:12:53 -0700
The tapered line concept is actually simple and logical. My LPDA antenna uses one which I pulled apart to inspect when I was constructing it. The outside diameter of the coax stays constant, in my ca
/archives//html/Towertalk/2017-03/msg00359.html (9,199 bytes)

46. Re: [TowerTalk] Telex-Hygain commercial/military rotator (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Fri, 16 Jun 2017 15:08:04 -0700
I possibly have one of those. If the chain is #80 rather than 50 or 60, and if the rotor assembly is 878170-1, part of 877607-1, then I have info on it; however it sounds like yours might be a smalle
/archives//html/Towertalk/2017-06/msg00176.html (8,502 bytes)

47. Re: [TowerTalk] 40M rotary dipole (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Thu, 21 Sep 2017 11:06:58 -0700
The RF current your receiver responds to flows on the inside of the outer shield of the coax transmission line, so what difference does it make what currents may be flowing on the outside of the shie
/archives//html/Towertalk/2017-09/msg00218.html (11,442 bytes)

48. [TowerTalk] Coated Guy line Available (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Fri, 30 Mar 2018 17:20:22 -0700
I have a lot of 1/4" steel core, coated guy line I'll never use. Take a gander at my website, on the Miscellaneous page at the bottom. Here is the link: http://w6dsr.com/misc/index.html -W6DSR ______
/archives//html/Towertalk/2018-03/msg00247.html (6,821 bytes)

49. [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald, W6DSR" <Doug@DougRonald.com>
Date: Tue, 12 Jun 2018 12:42:48 -0700
I have a Cablewave factory made 7/8" coax cable I want to shorten. The label on the cable is C371-21-27 1 16733-8L.1003-00 4-100. The male N-connector I have disassembled from one end. It has P/N 734
/archives//html/Towertalk/2018-06/msg00027.html (7,793 bytes)

50. Re: [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald, W6DSR" <Doug@DougRonald.com>
Date: Tue, 12 Jun 2018 13:42:19 -0700
Well, okay, if I have to start from scratch, I'm looking at Commscope's HJ5-50 7/8" heliax or something equivalent. Since I'll be ordering a custom setup, I might as well upgrade to 7/16 DIN connecto
/archives//html/Towertalk/2018-06/msg00028.html (8,896 bytes)

51. Re: [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald, W6DSR" <Doug@DougRonald.com>
Date: Tue, 12 Jun 2018 16:50:27 -0700
Air because the antenna's 1 5/8 EIA transmission line is pressurized. I already have the nitrogen setup for that outdoors at the antenna's base, but I can put the tank inside where it belongs if I ha
/archives//html/Towertalk/2018-06/msg00031.html (10,275 bytes)

52. Re: [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald, W6DSR" <Doug@DougRonald.com>
Date: Tue, 12 Jun 2018 17:17:52 -0700
Okay, great - thanks... Tessco provides made up Heliax assemblies. www.tessco.com There is also Tally. www.tallycom.com Thanks 73 Jim W7RY --Original Message-- From: Doug Ronald, W6DSR Sent: Tuesday,
/archives//html/Towertalk/2018-06/msg00036.html (11,550 bytes)

53. Re: [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Tue, 12 Jun 2018 20:31:16 -0700
But neither of those appears to pass the nitrogen. I would have to string a separate hose just for that... For only 30' I would use FSJ4 or LDF4 with an EIA on one end and a DIN on the other. These c
/archives//html/Towertalk/2018-06/msg00038.html (9,767 bytes)

54. [TowerTalk] RG-218 available (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Thu, 14 Jun 2018 09:31:57 -0700
I have a NOS 500 foot roll of military spec RG-218 I'll never use, and would like to sell. This coax isn't exactly low loss, but at HF has decent specs. It will handle 5 kW average up to 1 GHz, 2.4 M
/archives//html/Towertalk/2018-06/msg00044.html (6,829 bytes)

55. Re: [TowerTalk] Re; Need Help Remembering Something I Read (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Sun, 8 Jul 2018 00:16:22 -0700
That document was superseded by: (pick your own language and encoding) https://www.itu.int/rec/R-REC-P.372-13-201609-I/en -Doug, W6DSR Hoping to answer my own question, I tried to load the referenced
/archives//html/Towertalk/2018-07/msg00045.html (9,299 bytes)

56. Re: [TowerTalk] Connector on 7/8 Heliax (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Thu, 9 Aug 2018 12:12:04 -0700
For anyone considering either of these two vendors for a jumper cable fabricator, I can give my feedback on their initial performance. After issuing a specification for my cable to both via email, I
/archives//html/Towertalk/2018-08/msg00015.html (10,872 bytes)

57. Re: [TowerTalk] Story of the injured tower climber explaining to his insurance company (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Fri, 12 Oct 2018 12:36:46 -0700
https://darwinawards.com/legends/legends1998-08.html --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of terry burge Sent: Friday, October 12, 2018 11:49 To: T
/archives//html/Towertalk/2018-10/msg00094.html (8,186 bytes)

58. [TowerTalk] Open heliax connector (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Sun, 18 Nov 2018 15:26:43 -0800
I have a heliax cable ordered from Tessco which I paid a small fortune for, which has an open connection on at least one end. When I received the cable, I checked with an ohmmeter, continuity end-to-
/archives//html/Towertalk/2018-11/msg00189.html (7,292 bytes)

59. Re: [TowerTalk] Open heliax connector (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Mon, 19 Nov 2018 08:17:27 -0800
Thanks - It's exactly those instruction that I didn't have. No installation instructions were given to me with the cable, not that I would have expected them to be. Tessco has already contacted me, a
/archives//html/Towertalk/2018-11/msg00201.html (9,927 bytes)

60. Re: [TowerTalk] Antenna Analyzers (score: 1)
Author: "Doug Ronald" <doug@dougronald.com>
Date: Wed, 5 Dec 2018 16:42:15 -0800
Okay, as long as we're talking VNAs, I have a question: I am making an automatic antenna tuner, the sensor of which is a pair of AD8302s, and a pair of AD8362s. I made a 36 dB Tandem Coupler which ha
/archives//html/Towertalk/2018-12/msg00113.html (13,263 bytes)


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