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References: [ +from:dj7ww@t-online.de: 172 ]

Total 172 documents matching your query.

41. Re: [TowerTalk] 58 M Freeclimb (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Mon, 29 Sep 2014 16:30:17 +0200
Who can climb a tower the safe way can free climb it as well. But for what purpose? I climb my 44m high tower without stop for a rest but always attached. 58m probably would require me to rest in bet
/archives//html/Towertalk/2014-09/msg00373.html (9,886 bytes)

42. Re: [TowerTalk] Fwd: 4:1 balun questions KT-34XA (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Thu, 30 Oct 2014 01:01:54 +0100
I would expect Z to be higher on 60MHz then on 1.8 MHz. With the outside diameter of 5mm for RG58 40 turns would require a coil length of at least 200mm ~ 8". 73 Peter Myself, I am using a air wound
/archives//html/Towertalk/2014-10/msg00432.html (9,004 bytes)

43. Re: [TowerTalk] Fwd: Terminate braid at top of tower...or (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Tue, 4 Nov 2014 19:10:59 +0100
Exactly, there is no problem with overheating on a yagi. I use 12 windings of RG141 on a 61 mix toroid on 40m and less on the higher bands when not winding the feed line to a solenoid. All mine are o
/archives//html/Towertalk/2014-11/msg00038.html (11,581 bytes)

44. Re: [TowerTalk] PowerPole connectors (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Tue, 18 Nov 2014 03:09:16 +0100
And what is your system? Mine is IEC60309 73 Peter Yep... You can choose to use railroad track rails and rail spikes to make your power distribution connections - but you'd be the only guy in the wor
/archives//html/Towertalk/2014-11/msg00293.html (10,241 bytes)

45. Re: [TowerTalk] Yagi gain vs rotary dipole. (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Mon, 24 Nov 2014 20:46:14 +0100
Hi Jim, To get the same signal strength -4db compared to the 3el yagi on low angles with your dipole that dipole must be mounted much, much higher then the yagi and even higher with more elements on
/archives//html/Towertalk/2014-11/msg00477.html (10,104 bytes)

46. Re: [TowerTalk] Yagi gain vs rotary dipole. (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Tue, 25 Nov 2014 02:21:00 +0100
Hi Steve, You probably measured arriving signals with qsb so you just proved your method being wrong, otherwise the result would be always the same. You need to measure and compare the major lobes ju
/archives//html/Towertalk/2014-11/msg00490.html (10,372 bytes)

47. Re: [TowerTalk] Yagi gain vs rotary dipole. (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Wed, 26 Nov 2014 00:15:52 +0100
There are Tribanders on the market with more then three elements per band, For example the Optibeam 21-3 with 5/5/11 elements on 20/15/10. Concerning height, 1-1.5 lambda antenna height is generally
/archives//html/Towertalk/2014-11/msg00504.html (9,400 bytes)

48. Re: [TowerTalk] Is There a Good Balun... (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Wed, 26 Nov 2014 20:32:23 +0100
What exactly do you want to tell us? I canīt follow, perhaps a language problem? Peter I have asked my resident experts (U know who u r.) and added my own unschooled opinion. For the three band range
/archives//html/Towertalk/2014-11/msg00519.html (9,630 bytes)

49. Re: [TowerTalk] Coax loss. Has anybody measured it ? (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Sat, 29 Nov 2014 19:05:16 +0100
VF of RG-393 is .70 as with other PTFE coax. The highest coax loss of my station is on 2m with .7db through LCF 158-50 with UCF78-50 pigtails, total length is 75m from antenna relay to antennas. On a
/archives//html/Towertalk/2014-11/msg00599.html (9,822 bytes)

50. Re: [TowerTalk] 402CD (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Fri, 5 Dec 2014 19:57:25 +0100
Height should not be the problem. My 2-element HyGain discoverer did not change its SWR when taken down from 38m to its present 18m height. 73 Peter Hi. Many thanks to all who replied. I have kept al
/archives//html/Towertalk/2014-12/msg00051.html (11,378 bytes)

51. Re: [TowerTalk] An alternate yagi feed method (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Mon, 15 Dec 2014 15:59:37 +0100
On my CL-33 the braid of the coax btw. the corresponding site of the driven element is NOT bonded to the boom nor is such mentioned in the manual. 73 Peter After perusing through the Mosley.... tech
/archives//html/Towertalk/2014-12/msg00159.html (9,167 bytes)

52. Re: [TowerTalk] Multi-Op Station Interconnect coax type? (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Fri, 26 Dec 2014 20:50:44 +0100
I use mostly RG-214 but also short length of RG142 or longer runs of SCF12-50, always depending on my surplus sources what is available for free or some beer. 73 Peter Im re-cabling a 4 transmitter s
/archives//html/Towertalk/2014-12/msg00366.html (9,142 bytes)

53. Re: [TowerTalk] Mosley..again. (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Thu, 19 Feb 2015 19:14:19 +0100
I would always prefer trap yagis over such installations: http://www.optibeam.info/files/ob18-6.jpg And I donīt buy your "they can easily be outperformed" I never found a performance difference betwe
/archives//html/Towertalk/2015-02/msg00336.html (7,951 bytes)

54. Re: [TowerTalk] Mosley Antenna Question (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Fri, 20 Feb 2015 23:47:26 +0100
If a 3 el 20m monoband yagi is say 5.3 dbd, and your CL-33 is 2-3db down from that... that's a huge amount. _______________________________________________ ___________________________________________
/archives//html/Towertalk/2015-02/msg00372.html (8,513 bytes)

55. Re: [TowerTalk] Mosley Antenna Question (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Tue, 24 Feb 2015 13:52:56 +0100
Why would someone want to compare a full size yagi with a mini beam? results will make u gag. Gets even worse when a TA-32jr is used. _______________________________________________ _________________
/archives//html/Towertalk/2015-02/msg00452.html (8,600 bytes)

56. Re: [TowerTalk] 80 mts four square or yagi? (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Wed, 11 Mar 2015 21:13:06 +0100
It works well. I use that a idea as a reflector to my elevated GP on 160m with one elevated radials as a counterpoise. Still passiv but will become a phased array with two of those bent elements. It
/archives//html/Towertalk/2015-03/msg00133.html (9,880 bytes)

57. Re: [TowerTalk] [Bulk] Re: antenna choices for K4XS (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Mon, 13 Apr 2015 18:59:28 +0200
Where is that supporting study? I doubt that they measured within the main lobe of the antennas on the comparison test. 73 Peter Read the supporting study - the details of the test method are explain
/archives//html/Towertalk/2015-04/msg00283.html (12,221 bytes)

58. Re: [TowerTalk] Trash talk and M2 (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Tue, 14 Apr 2015 14:44:08 +0200
Why is a difference of a 1/16" of element length a disaster with an antenna to cover 430-438MHz? --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Lizeth Nor
/archives//html/Towertalk/2015-04/msg00333.html (8,079 bytes)

59. Re: [TowerTalk] antenna choices for K4XS (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Wed, 15 Apr 2015 18:25:54 +0200
W8JI has published something: http://www.w8ji.com/traps.htm 73 Peter OK, but... Has anyone actually measured the Q of any modern traps? I have a KLM-KT34A. Its linear loaded traps are supposed to hav
/archives//html/Towertalk/2015-04/msg00400.html (8,667 bytes)

60. Re: [TowerTalk] Antenna Heights (score: 1)
Author: "Peter Voelpel" <dj7ww@t-online.de>
Date: Fri, 17 Apr 2015 03:48:20 +0200
Soil condition does not affect the pattern, but the gain of the horizontal polarized antenna. 73 Peter Wrong on one count -- soil does NOT affect the pattern or performance of horizontally polarized
/archives//html/Towertalk/2015-04/msg00432.html (8,910 bytes)


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