Probably not the appropriate forum but there ought to be a technically skilled ham here? Sorry that this post isnt about cheating and what defines assistance. Some contesters have real issues though.
Franki, I am happy to see a topic of importance to ham radio, and thus to contesters, on this venue. I have had lots of weird tarnish, corrosion, and coax deterioration over the years...... first in
Hi Franki, I would not be so sure that it is not moisture. A few years ago, I replaced a center insulator on one of my high dipoles with one that my neighbor had built. Less than a year later, I noti
H2O molecules are pretty small. I'm told that copper oxide eventually turns from green to black. I use Coax Seal, but it can be nasty to remove-- at least it seems to do its intended job. George W1EB
George, I've found over time that the easiest way to remove Coax Seal (or some of the more generic knock-offs) is to first wrap the intended connector(s) in electrical tape, then put the Coax Seal on
Wrap connections with a layer of Scotch 33 Plus first before you apply the Coax Seal or Butyl. This will make the removal very easy. _______________________________________________ CQ-Contest mailing
The green mush is probably due to the DC power and other affects. Don't have a solution on this. The black center conductor, have you checked any other coaxes to verify whether their center conductor
The only black copper oxide that I experienced was the shield on a 100' run of RG213 due to a squirrel or more likely a rabbit chewing a small hole in the jacket. Had to cut 4-5 feet out of the middl
A lot of useful replies about the black inner conductor and the green mush inside the connector. Many of which sent directly to me. Some people think that it water ingress even though I'm pretty sure
I think the 12 V would only be relevant when there is a dissimilar metals problem. In other words copper against aluminum. Chuck W5PR Sent from my iPad _______________________________________________
Something that hasn't been mentioned in this thread that has been mentioned in posts in the past is that there are 50 Ohm and 75 Ohm N connectors. The center pin of the 75 Ohm N connector is slightly