mikrotik and novatel 3G

Hi to all,
I’m using routerboard mikrotik with novatel 3g card and I use command listed in this page http://wiki.mikrotik.com/wiki/Huawei_EVDO but when modem is connected is impossible to know the signal strenght …
I have also another problem … How can I set the 3g card for using only GPRS/EDGE technology and not UMTS/HSDPA?

Thanks a lot fort answers …

up.