Could anyone tell me if a pair of AP1410s will work if the remote antenna is obscured by trees? If so, what kind of signal loss should I expect? If not, can you point me to an alternative? The distance between APs will be about 3KM.
General wisdom says no, as you say trees that impies more than one. Bridges require a clear line of sight to operate reliabley. your proposed bridge may work in the winter when the trees are bare may even still work somewhat when they leaf out in the summer but will definatly have trouble when they are wet after a rain.
But only a site survey will tell you what will work and meet you requirements.