Hi Bob, When mounted right, thick side of the inserts at the center of the elements, a slight upward tilt is still provided. Electically the 30 inch droop does not matter. For esthetical reason you m
Those would have worked with the TH7, but at the time of mounting the TH7 I had no stock of FT240-61. The balun on my TH7 was a coax choke wound on a large 4C65 (~61 mix) Toroid: http://m0.i.pbase.co
Any choke is inductive. If not it is no choke at all. 73 Peter Only the coil of coax with no ferrite is a VERY POOR choke because it is inductive, not resistive. _____________________________________
Yes, the PST2051 is far too small. I have four of them. On all 4 the worm shafts have been pushed out together with their bearing during medium storms. Antenna size was always less then 1 square mete
Any simple L network isolated from ground is such an animal. 73 Peter As a true balanced tuner frequently is just that, an unbalanced antenna will still cause common mode current in the feed line wit
Reading is believing? I am very happy that I own a Mosley beam CL33 and not a Moseley. But if identical yagis are meant, my dipoles probably have far less then one percent efficiency. 73 Peter Before
I did not see it but I am always very interested when I hear about yagi comparisons how they managed to measure the main lobes of the different antennas to be meaningful. So, how was that done? 73 Pe
Thank you for the clarification. That doesnīt sound at all as "less gain than a dipole at the same location and height, and over the same path" as somebody insisted. 73 Peter As one of the report aut
Yes, especially if the latter owner never collected any qsl card. 73 Peter The success you may or may not have with an antenna has a lot of variables behind it. To say that Honor Roll on a Pro67b mea
I use EPCOS surge arresters everywhere. http://electronicdesign.com/components/stack-component-combines-epcos-surgearresters http://www1.futureelectronics.com/doc/EPCOS/Epcos%20T61-C350X.pdf 73 Peter
Antennas with the narrow spaced first directors were standard many years before DL6WU published that for ham radio antennas. I installed TV VHF antennas by Kathrein, Hirschmann and Wisi with closed s
You are saying the gain of the shorty-forty is just 0.5db? 73 Peter All in all, between the coil losses and the directivity, I'd say it is ~4 db better than the shorty-forty in forward gain. That's a
A lossless quarter-wave monopole has an radiation resistance of 35 ohms. To that all losses will be added and the result is the feed point impedance. That will never have an impedance of 12 ohms but
I donīt believe in that higher power rating 73 Peter everywhere... so what am I missing???? You may be blessed with a very quiet location. Good for you. Most of us are not. The high choking Z does tw
I guess the PST2051 is far too small for that antenna. I own 4 of those rotators for 15 years and it never happened that all 4 were workable, at least one is always damaged. At the beginning I used t
Hi Jim, Do you have any data sheets which support that? I do not see the 25% stronger then T6: http://www.allianceorg.com/pdfs/alumext/6061t8.pdf 73 Peter --Original Message-- From: TowerTalk [mailto
Thank you Stan, I found some data as well: http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA6061T8 http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA6061T6 73 Peter I believe thi
Thatīs about the rate for shipping a 180 feet Luso tower from Japan to Germany house to house. 73 Peter I have three (3) 25G sections and one (1) 25AG2 section (the top section) a total of 40 feet..
I do, age is 68 in November. 73 Peter My wife wants to know how may of us are still climbing our own tower after age 68. If you don't any longer, please tell when you stopped. (Now I gave my age away
Why repeat it again and again? We know you are the greatest... I have been climbing, free climbing, for 40 years. I never kept track; I probably have easily made at least 1000 climbs or more as a ham