Re: A terminal emulator for running emacs

[Javier]

Have you checked with C-h l (view-lossage) or cat -v in bash that the
terminal sends some escape sequence to emacs?  If emacs sees a escape
sequence you can still remap it with

(define-key function-key-map "\eO2A" '[S-up])

\e is the escape character.

Anyway, my advice is to use xterm.