Too much "pucker factor" on 25G for my taste and safety. I will stand on top of my tower fine, although I am not big on mast steps (prefer to lower the mast by pulling the rotor the few times there i
Rohn Tower specs discuss 0.5 and 1 degree out of plumb for some construction tolerances. That would be ½ a foot to 1 foot out of plumb at the top for a 100 ft tower. I think ?perfectly plumb? is a vi
I have heard of many zoning and permit discussion about "fall within the property" as far as setback requirements from property lines. And no amount of engineering explanation will get people off of
I have the Green Heron Wireless antenna switch for my beverage system. Works very fine although 375ft is non trivial so you may need an improved antenna system for the wireless signal. Mine is only 7
Be careful of that commercial user. Even for a "replace within the confines of the original permit" - it could still be a permitting nightmare. You should run a scenario of what do you really need as
Tread very carefully if you don't have permits for the towers. There are HOA, Protective Covenants, and zoning/permit laws. You could win the battle and lose the war, if this turns into "hey - do you
Actually Gary, if you added the weight to the front of the arrow as I describe, it drops right through all the branches no problem, but has accuracy. Trust me, I know. I have missed a shot or 2, clea
I have had several hits over the past 15 years here at the N1UR QTH. 2 direct tower hits and 2 proximity events. Its not a matter of if, but when, on the next one. I have found that with coax, rotor
I would look closely at the possibility that the 20 and 15M elements are touching in any wind. If 10M is solid, then the balun and feedline are good. Not quite familiar with the connection system on
I am surprised by the comment that the phase angles could change significantly and see no value change in the complex impedance at the array input. I always see a value change at the array input poin
I think that there is not only the PEAK gain but also the gain over a certain bandwidth. 48 ft boom OWA Yagis may only have a peak gain difference of 2dB over the Optibeam 18 ft boom antennas. But if
I have trammed many antennas up - the heaviest being 200lbs. A few comments from me: - The tram anchor is much too far away. There will be too much dead load on the tram wire. A more typical angle wo
To be clear, just because the SWR gets better lower in frequency (to a 50 Ohm input) doesn't mean something has lengthened. It just means that a frequency dependent impedance has shifted lower in fre
I was not originally realizing this preform discussion was talking about Phillystran. So are we saying that the 4 ft long preform, attached to the tower, is actually affecting the 40M yagi as it turn
Tim, Thanks for that information. Do you find that the Moxons are more sensitive to this interaction? In my installation on 20M and 15M, I have preforms attached directly to the tower then Philly dow
RG8X should certainly work. However, I prefer LMR240 for light coax on 160 - 40M. Lower loss, just as light. Ed N1UR _______________________________________________ __________________________________
I am curious as to the circumstances that are requiring registration. 200+ ft, close to airport? Ed N1UR _______________________________________________ ______________________________________________
Don't assume you caused the interference. Twice in the past year I have had neighbors (over 2000 ft away from my antennas) claim I was interfering with their TV. Both times I was out of the country..
I have had mine up for 5 years without issue. My Hygain 105 (which I turned into a 108 elephant gun to EU) had some element issues but I finally solved it by redrilling and better connecting the Hyga
John. How far away from the inverted V are the houses? Ed N1UR Ok so my neighbor claims I am coming through the speaker of their alarm system. The other neighbor claims the microvave. I am running a