What are classic symptoms that the coax has either water getting into a connector or a small crack in the outer jacket? I used to notice, after a rain, that analogue VHF 2 would have colour issues- like it was washed out or too bright. Just as if when one could fine tune the channel with the dial inside the speaker panel on the old 1980's Sony Trinitrons, and it was slightly off.
I currently have this cable that has done well over the years, and, despite it being RG59, the specifications numbers look pretty good, compared to a lot of RG6.
http://www.belden.com/techdatas/english/9104.pdf
What do the experts think about this particular RG59 coaxial cable from the specs above for OTA use?