thanks for your concern...
i managed to visit this site but they dont give full descrption of their items
look at this example
EL-1999 Features
Fully DVB-S MPEG2
Maximum 4000 Channel
Channel Search Automatic Blind Search
PAL-NTSC Auto
DISEqC 1.0/1.1/1.2, Voltage(14/18V), Tone(22K) and 0/12 LNB Switching Support (Optional)
Multi Language OSD(English, Farsi,French,Arabic,Portuguese, Russian),
RF Modulator for TV Standard (PAL B/G/D/I/K,NTSC) Optional
Easy and fast software upgrade through RS-232 port
thats all they give thus needs someone who has used a device is the only who can tell if ma needs are available in a particular model