Dear Mike: I recently received a note from you saying there are no mods available concerning opening the 706mk2g to operate on 5Mhz--- Please check out the following and pass it on to your technical people.. http://www.mods.dk/ I also have heard that mods ARE available via the factory for MARS and other uses. Regards, Robert Reynolds-WB3DYE 73 New Alexander St Wilkes-Barre, Pa 18702