The Alinco DJ-G5(T) is capable of UHF/VHF full duplex. I sometimes have it in my car. It could be used for working satellites. Actually this HT has so many functions that I still did not read the complete manual. Some features: Standalone repeater capable, selective call capable, crossband function, if you got another DJ-G5 you can just copy the memory over the air. It's just incredible what kind of functions this HT has for a 15 year old design. When I bought it in 1997 it was a second hand one. It's still doing fine. Output max. about 4W. Cheap 9,6V NiMH Accus can still be bought for this rig on eBay as I previously did. See: http://pe4bas.blogspot.com/2011/04/cheap-alinco-rechargables.html