I think that is market for VHF amplifiers too...Look at this site, http://www.i0jxx.com/index.php?cPath=18_34, it's some kind of modular approach but without good manuals... Samir, 7S7V __________ Information from ESET NOD32 Antivirus, version of virus signature database 4859 (20100211) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com