Hyperterminal sends any character you type into the main window so you don't need RealTerm (but RealTerm is by far the better tool - recommended). It can also send files.
The problem is that you can't see what you have typed/sent by default. If you go into the properties for your connection, under the Setup tab, ASCII settings, you can set a checkbox to echo typed characters locally, now what you type/send will show on the screen.