^^^
That "rain" thing is not so bad. Signal goes out when the rain is really really hard, as in heavy downpour. Ordinary heavy rain can't knock the signal out (my experience). Also, it only goes away briefly, 1-5 minutes if and when it goes out. Typhoon tested na din yun installation sa amin, it survived a good hammering of the last typhoon
We have it installed in between our wall and the neighbors firewall.
AFAIK, cignal is nationwide. I've a feeling nueva ejica is covered, Bulacan and Laguna is.