Post by Afterburner(OT-749) on Nov 29, 2015 7:27:14 GMT -5
I guess I want to pose this question to any of the antenna "Guru's" that are on this forum.
I have taken down my Moonraker 4 to "rebuild" it. In the past when I have done this, twice so far in the 12 years that I have owned it, before re-assembly, I make sure ALL contact points are clean of corrosion and oxidation. When I have re-assembled it, I use a the same anti-corrosion compound that is used in normal electrical service where aluminum wire is concerned. I have not ever "cleaned the actual aluminum tubing of all the radial. I have applied anti-corrosion compound to where the two parts of the radials slide together and then that one whole piece into the hub assembly, all the hardware is replaced with new stainless hardware and also lightly coated.
It has been suggested that I should clean the oxidation off the length of the radials also, not just the contact points. That could be a lot of rubbing with some fine grade steel wool. Yeah it would make it look brand new and shiny, but does it or would it effect quality of transmission? Does the fact that I have not cleaned the oxidation off the full length of the radials previously make any difference in the transmitted signal or radiation pattern?
I have never had a problem SWR wise ever, vertical or flat, and I am still able to transmit and receive the stations that I have spoken to for years here the same and get the same reports back from them as to the "quality of my transmission".
Would like those who know more than I to chime in please. I am in no rush to put the Raker back up as I usually have taken it down before winter hit's hard and put it back up in the spring, that way I have something to do in the garage during the cold winter months. Yes, my garage is a free standing two story 3 car garage that has it own environmental system. I have heat in the winter and A/C in the summer so it is my "Man Cave" all year long!
In my experience, surface tarnish or corrosion has little to no effect on an antenna's efficiency. The only places that it matters is at the connection points. Keep those points as clean as you can, but anything more than that only helps make it "look like new", and not really doing anything helpful electrically.
Read more: grumpy.proboards.com/thread/7579/antenna-re-conditioning?page=1&scrollTo=48182#ixzz3suon1sKC
Thank you Sandbagger. You have expressed what I have always thought.