As i said before I played for long with those hacks, they are nice and userful but now I need a better solution, I can't keep the antenna inside (too much signal loss) and I can't keep the router outside ( is not hard waterproofing it but it will result very bulky and I can't power it over eth)
I think that an adapter like the one I've linked is a far better option: PoE (so just one cable) , waterproof, booster integrated, antenna and small form factor ...I just need to know if someone have ever tried a similar product
Btw looking for the channel interference it's a good suggestion, I've found a nice android app for wifi monitoring and this evening I'll try to find the most efficient channel