My preference, as always, is to INVERT the Xmas-tree, with the 20m on top, 15m below it, and 10m below that. Used that arrangement for many years in the 1980's and early 90's. Don N8DE ______________
Bill, When I was starting my Masters, I attended Indiana University of Pennsylvania, near Frank's home. Out of curiousity, I drove over one day to find him sitting outside the 'shack' in a rocking ch
Doug, Check with Texas Towers ... I think they will have them shipped directly to you from Universal. Last time I bought them, the shipping was almost nil due to light weight .. watch out for BENT se
Insulation is inexpensive, as the bottom of a 1/4-wave vertical is a low voltage point. You can use sheet teflon between the irrigation tubing [which I think is overkill for a 40m vertical] and the s
Don't be too enthusiastic about this antenna .. I built one of these about 15 years ago .. played even with my HyGain 204BA. Don N8DE _______________________________________________ See: http://www.m
Universal towers are very easy to climb .. and SAFE, if you use safety measures. If you install the antenna when the tower is horizontal and then try to 'walk it up' you will find that quite difficul
Your tuner/transmitter/amplifier will not know you're using 75 ohm feedline IF you tune the output FOR 75 ohms impedance. As for the antenna ... if you adjust the feedpoint match ... you can MAKE it
From the standpoint of an ex-coach, the problem can be avoided by doing all those things FIRST. Heavy intake of fluids is necessary BEFORE doing the activity .. and .. WHILE doing it. Don't wait unti
Lowe's and Home Depot sell No-Alox. I use it between sections of my 80m aluminum tower vertical. Just remember to clean the INSIDE of the section into which the other section will be inserted. You ca
<snip> If the pad is round .. the triangle MUST be equidistant from all edges, unless the triangle is NOT an equilateral triangle. Don N8DE _______________________________________________ See: http:/
Joe, Looks like the same kind of tower that is installed at K8US .. manufactured in New Philadelphia, OH. Not sure of name of manufacturer. You can contact Mike, K8US, and ask him who made his. Don N
Tom, I definitely agree and couldn't have said it any better than you did! Congratulations on putting my exact thoughts into your tome. Don N8DE _______________________________________________ See: h
Why not put a dual-female connector through the wall [they exist in many different lengths] and simply add a short coax jumper on the inside of the wall? Don N8DE ____________________________________
Why not just acquire a HyGain 66B ? Same boom, 6 elements on 6 ... then ship me the 105BA, as I can use it! Oh .. I have a 66B that I'm not using ... wanna swap? Don N8DE ____________________________
Dave, Not to be picky, but ONE time less = ZERO signal I believe you meant to say: ........you will receive less than 1/1000 the exposure.... and ......expect LESS than 1/10000 the signal strength ..
Why don't hams place the LP filter between the Xcvr and the Amp? That way, the amount of harmonics reaching the Amp will be minimized, rendering their output levels relatively the same, if not lower,
Correct me if I am wrong, but aren't "harmonics" exact multiples of a given frequency? As such, they should be differentiated from the spurious frequencies generated by an amplifier which usually are
FAA regulations specify 199' without a light EXCEPT when the tower will be within a certain distance of a glidepath. Check with others who may have more specific info. Don N8DE ______________________
Bill, Why not fabricate what is required from a piece of Teflon or Delrin? Cheap stuff in pieces like you require. Don N8DE _______________________________________________ See: http://www.mscomputer.
I'm surprised nobody mentioned the possibility of a balun failure. If you are using a balun, replace it when you're up the tower. Don N8DE _______________________________________________ See: http://