Have any Towertalkians installed this huge 40m-6m yagi? Comments appreciated. k7puc _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wirel
This NVIS configuration is included in the book "Near Vertical Incidence Skywave Communication" published by World Radio Books. A drawing and text is on page 73 where it is called the Jamaica and is
-- Original Message -->> > just use the example of a very weak tube, like a cardboard paper towel If your going to build your tower out of cardboard, don't guy it? k7puc _____________________________
In this area, a large, thorny blackberry patch should work well and provide fruit for wine making? k7puc _______________________________________________ See: http://www.mscomputer.com for "Self Suppo
I have been thinking about installing a two element Steppir yagi at the top of the second section (~38') of my LM470 crankup. The benefit of using the Steppir is that the yagi would only need to be r
The current plentiful interest in modifying current Steppir yagis is in sharp contrast to my posting of Oct 7 2004. That posting suggested two possible modifications: The first would be a two element
I am trying to understand why the so-called reflector has to be longer than the driven element and the so-called director has to be shorter than the driven element for the standard configuration Yagi
I am surprised that no posting has questioned these measurements! It seems to me that specifying impedance without including the phase angle ( or R +- jx ) is of little use in understanding what is h
Out of curiosity, when I planted a Mulberry tree out back in my wetland (?), I found that I could push an 8' ground rod completely down by hand. Sometime I think that maybe I should be wearing a life
Not too long ago, when I asked why reflectors of a Yagi are longer than the driven element and directors of a Yagi are shorter than the driven element, several Towertalkians advised me to look at the
My manual, dated rev 12-22-99 for OR2800P-DC states as follows" 1. In the specifications "Vertical Load Capacity 1800 lbs.". 2. In the cutaway drawing "2000 lb thrust bearing for low friction". (it d
-- Original Message -- > It has finally dawned on me of my mistake in equating the phase angle reported by EZNEC for the whole element was taken from the source data report and is the phase angle for
FYI The second page of this compendium is devoted entire to a copyright "No part of this work may be reproduced...." k7puc _______________________________________________ See: http://www.mscomputer.c
I am about to replace the coax and rotator cabling on my LM470 crankup tower. FYI the reason for replacing is that the m2 Orion rotator finally quit working after much losing of its position. I found
I am in the process of rebuilding the cabling for my M2 2800 rotator. In order to reduce or eliminate errant pulses from coupling to the reed relay return lines I have been planning to use some old R
I appreciate the explanation given, but (I and maybe others) would like a follow-on of what is happening to this outside-of-the-shield current and how significant is it? 2. The current flowing on the
Thanks for the response. Actually I put this posting in my outbox thinking that I could at a later time edit it for a more clear posting, but apparently the outbox is the place to hold things for lat
snip A google search shows CFA can stand for: Cat Fanciers' Association, Chartered Financial Analyst, Compact Flash Association, Canadian Franchise Association, California Federation of Aromatherapis
I was given a couple partly filled spools (~24" diam) of what appears to be 75 ohm coax. The only identification is COMMSCOPE on the coax and Migraheal on the spool. It has braid wrapped over foil wi
A ham friend recently "found" his subject rotator in his "infamous" garage that he purchased new some 20 odd years ago and has never installed it. However he can't find the manual and needs hookup in