Something must be wrong in your setup. If it takes about 10 degrees for gravity to begin to take over with tilting from vertical, then gravity should take over at about the same angle when tilting th
Is it worth it? I was thinking along the same lines except that I don't have a silo and my objective was to get into Canada maritime qth for sweepstakes contest. That was a few years ago and I didn't
EZNEC DISAGREES?? It seems that most often an assumption is made that "effectively" for antenna height refers to dx propagation. My modeling of a 3 element 40m Yagi shows that the maximum gain of the
EZNEC does more than "imply" parasitic coupling between the different inverted vee antennas. Take a look at the current tables to see the actual parasitic coupling. The degree of coupling depends on
If your name was Hal, then the designer tying the PC card grounds back to a common point could have been me except that the run was less than 3 feet! After studying "proper grounding techniques", I c
According to both manufacturers wind load specifications, the U.S, Towers are not "...substantially tougher towers than (my) LM-470." ! A few years ago the LM-470 manufacturer claimed to have started
I had a discussion with M2 and came out thinking that YES, they do want the mast to slip acting as protection to the gearing. As to getting torque numbers for tightening the mast clamp bolts, M2 hesi
I would like to hear from hams who have purchased an Alpha Spid from the Canadian manufacturer as to if there was a customs charge and did the manufacturer pay it or did you the customer pay it? In O
W4OJc writes in a previous post: I would like to obtain information from anyone who has used the Force12 Mag2/2 subject yagi. I have had one still unopened in its shipping carton for a couple of year
The holes in the k2550 mounting plate do not match the holes in the K1550 mounting plate. When I replaced a k1550 with a k2550 I had to ream out some (I forget how many) of the holes by up to about 3
When I first got the k1550 and it squealed so loudly I called Fulton winch to enquire about using a worm drive winch. I had experience with a worm drive mechanical winch on my Jeep pickup. However th
I have been hoping that a knowledgeable towertalkian would offer a posting on how brake winches work but again nobody has. I am not a mechanical or civil engineer and know little about winches, howev
Are you referring to the winch being used to tilt the tower over or to raise the tower when it is in vertical position? If the latter then the winch cable is always loading the winch and would not op
I had a two section Wilson tubular tower for about 8 years. I don't know what the model number was but each section was about 21 feet long. The antenna was a Mosley TA33 up about 10' above the tower
I have been using EZNEC modeling for several years and about two or three years ago up[graded my computer system to use two monitors (19" flat panels). It really is nice to be able to see the gain pa
About a year ago I had a conversation with the m2 people about their rotator clamp slipping on my Monstr's mast. What follows is my memory of the conversation: 1. It is better to have the clamp slip
Thank you for the link to the photo of your "new" m2 2800 positioner. It looks identical to my older one which is about 3 years old since purchase. The mfr's spec is the same except that the starting
Thank you for the link to the photo of your "new" m2 2800 positioner. It looks identical to my older one which is about 3 years old since purchase. The mfr's spec is the same except that the starting
I suspect that rather than measuring the tension with an expensive device, one can calculate the tension after approximating the weight of what is being tilted up. This calculation will require someo
Is this really true? I am aware that a 1 db difference in audio is barely noticeable. However, as I understand, Force12 claims that a 1 db gain on the desired signal can cause the automatic gain of