Thyir’er we go! 73, Rick K7MW
> On Apr 18, 2017, at 6:01 PM, Matt Zilmer <[email protected]> wrote: > > Time to update that list of frequently misspelled words. It is very long, but > also distinguished. > > How about it's versus its? The first is a contraction, and the second is a > possessive. I think, from experience, that this is the single most common > spelling error that I see from English-first writers. > > /me ducks. I'm SURE this is off topic. > > 73, > > matt W6NIA > > > On 4/18/2017 5:03 PM, Randy Lake wrote: >> This has been bugging me for a while and I am now in a mindframe to comment. >> Lightening: >> light·en·ing >> ˈlītniNG/ >> *noun* >> >> 1. a drop in the level of the uterus during the last weeks of pregnancy >> as the head of the fetus engages in the pelvis. >> >> Come on !! >> >> Randy >> N1KWF >> >> >> On Tue, Apr 18, 2017 at 7:39 PM, Ken G Kopp <[email protected]> wrote: >> >>> I was the first to use the term "exploding tower base" in this discussion. >>> The term "exploding" was probably not correct. As several others have >>> phrased it, an instant expansion of steam is more correct. Concrete is >>> never totally "dry" in the context of this conversation. >>> >>> I witnessed lightening blowing apart the two tower bases I spoke of in >>> person, directly, and in real-time. It happened in the mid-sixties at the >>> St. Petersburg, FL Coast Guard base. As someone else has mentioned; >>> the Tampa Bay region has the highest incidence of lightening in the >>> Western Hemisphere. To the one of you who accused my of lying ... >>> I was there ... you weren't. >>> >>> At the time I was an ET aboard the USC&GS (Now NOAA) Oceanographic >>> Survey ship Hydrographer/WTEI and we were in the area deliberately >>> attracting lightening with balloon-hoisted cables. I -do- know something >>> about the infinite uncertainty of lightning. >>> >>> I'm a retired electric power company two-way radio tech and have probably >>> dealt with more types of towers than most of you. Large electric >>> transmission >>> line towers are almost always set on four concrete piers, and are grounded >>> with (usually) copper straps cad-welded to each tower leg and connected to >>> ground rods a bit away from the cement. Each of us can search long enough >>> to find "facts" that support our various positons, especially on today's >>> Internet. >>> >>> Here in the mountains of the West ... as well other regions ... finding and >>> maintaining a "good" ground at a radio site atop a mountain can be a >>> "challenge". It's almost never done with ground rods. My power company >>> employer has several hundred mountain-top microwave and/or radio sites. >>> Been there, done that, as they say. >>> >>> One responder spoke of fitting a copper pipe with a garden hose fitting and >>> "flushing" it into the ground. That works very well, and is how some of my >>> 14 grounds are installed. It helps if the downward end is partly >>> flattened, BTW. >>> >>> A much bigger problem overall than lightening is water collecting in tower >>> legs, >>> especially in climates where it can rust (undetected) from the inside and / >>> or >>> freeze and split one or more legs. There's an accepted way to avoid this. >>> >>> 73! >>> >>> Ken Kopp - K0PP >>> >>> >>> On Apr 18, 2017 at 4:30 PM, <[email protected]> wrote: >>> >>>> some 40 years ago, maybe longer I put up a 50' rohn 25G tower. Dug the >>>> hole >>> and set the tower base in it alone with a 12' 3/4" ground rod and >>> poured the >>> cement, left about 6" of ground rod protruding. I bonded to that rod >>> and grounded >>> the tower. 3 years later I had a huge lightning strike on my tower and >>> yes.. it cracked >>> that base. >>> >>> never again >>> >>> Ronnie W5SUM >>> >>>> ______________________________________________________________ >>>> >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[email protected] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [email protected] >>> >> >> > > -- > "A delay is better than a disaster." > -- unknonwn > > Matt Zilmer, W6NIA > [Shiraz] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
