@ red,
mao nay setup nako sa haus bro, i hav an ext 14dbi antenna (bought @ sulit) fixed on the rooftop. i use it with my b933 and e353 ky hinay cgnal sa amo prbnsya.. i can only go 3G connection unstable pa jud using internal antenna pero kung i attach nako ang ext antenna, it can go for hsdpa stable.
pero kung mobile ka permi, nya naa ra ka city no need antenna i presume.