I have an extra subject winch handle. But when I tried to e-mail a reply to the sender, my e-mail was automatically returned as unsent. k7puc _______________________________________________ _________
What word or phrase might best describe the above-- anomaly, metaphor ...? "close as practical" is variable? "anywhere else is a waste of money" is discrete? I am not nitpicking--just curious! _____
what is a half sloper? is it a half inverted vee (which is a sloper)? k7puc I have an inverted vee installed on a 48 foot tower - apex is around 45 feet. On another (64 foot) tower, I have 2 half-slo
Could it be that the wrong question is being asked? Why not just put a fixed capacitor in series with the input (or output) lead of the tuner? k7puc _______________________________________________ __
Be careful--keep hanging on to the winch handle as the winch is capable of getting into a free run (down comes the tower) mode. What do you mean "...is frozen:? Normal operation is to crank the winch
This response may not be applicable but I will appreciate your keeping my problem in mind if you happen to get a response that fits. I have two LM470 towers about 6 years old, purchased from a compan
My understanding is that winch is on the tilt/raising fixture and used for tilting the tower over and not for extending/retracting the tower? k7puc _______________________________________________ ___
Besides "seeing the details" with a blown up digital camera photo, one can also make measurements: One measurement that I made was to put a fine resolution ruler alongside a small screw so that I cou
According to my EZNEC, the directivity is actually opposite to this postings response? The higher the flat dipole on 80, the less directivity! The problem is that the peak gain of the lower dipole, a
I forgot to state that my earlier posting referred to directivity at lower elevation angles than the peak lobes. al _______________________________________________ ___________________________________
how did you determine the ground loss resistance of 13 ohms at 1.8 mhz & what would be the ground loss resistance at 3.5 mhz? k7puc _______________________________________________ ___________________
In my 30 some years as a lead engineer (electronic & software) I found that most engineers did not fit this description. They welcomed going on to a new design project as soom as their present design
I have a Cushcraft A4s tribander that has gone bad because the upper limbs of a 90' tree fell on it. It was on the ground after I replaced it with a Steppir monstr. Some of the element are slightly b
Whoa! I once tried to draw a sketch of the crankup winch, cabling, and pulleys on a LM472. It didn't turn out very readable. I think that I learned that the only thing keeping the tower cranked up is
Another complaint about tuner offerings: All of them use meaningless dial markings e.g. 1 to 10, with some intermediate markings. The actual range is known e.g. 20-300 pf and would benefit everyone i
Thats worth more than two cents? I wasn't thinking of adding circuits to display the values but if going that far it would really be helpful to display the impedances as the dials are changed. Twisti
This thread has been of interest to me but I have often thought of trying to learn what is really going on when tuning the dials of the tuner. Does anyone know how helpful the ARRL book "The ARRL Gui
or if you want to keep the tower from flying off into the air ??? _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@con
I am surprised that YO or 4nec2 don't include actual current measurement in the parasitic elements. EZNEC includes a table of current amplitude and phase for each segment of each element. However the
Just a few days ago I called ARRL and asked about volume 8. The woman investigated (by reading the same material) and allowed as how there were no new articles. k7puc ________________________________