I've seen some that most certainly let water in through the gore vent.
One such instance was rain blowing sideways for 20 minutes in a bad
storm. That probably occurred because the radio was a little over 2
years old and the coating on the gore patch thing was gone. Basically
just some mesh stuff left. At least it kept the bugs out. And others
with covers that apparently weren't sealing right from the factory. Bad
machining I think on those. Another where a stud wasn't inserted into
the cover all the way. I took it apart and let it dry out and pushed the
stud in carefully with a C clamp on the bench.
Other than that, if it's not obvious how water got into a particular
radio, then I don't know.
On 9/21/2017 4:23 PM, Colin Stanners wrote:
I'm investigating a PMP450 5ghz AP (old unit - the original ones that
came with the FSK port) that failed on the tower. RJ45 and especially
RJ12 ports have white dots on the pins. Looking in the case, there
seems to be evidence of water intrusion coming from the little
temperature/humidity control membrane-covered hole in back. But a
quick test of dripping water on the case does not cause water
intrusion in that hole. Has anyone else seen such issues with older
PMP450 APs?
