Hi , I have a Jetstream Disconne Antena 25-1300mhz in a Tower about 75 feet high . I can copy a lot of signals in Analog and digital uhf/vhf . I was having trouble with a DMR System in the 800mhz range that one of the sites is located near my house so i thought it was a programming issue or scanner malfunction. I bought a 800mhz portable antenna and for my surprise when i tested it next to the disconne (same location) it started to catch a few control channels and new frequencies in 800mhz including the system i was having trouble with. But when i connect again the disconne it goes deaf in 800mhz the signal is full lengh but no decoding. Is there any setup that have to be make to the disconne ? Im thinking about getting a 800mhz outdoor antenna , would it better vertical (ommnidirectional) or directional? Which ones would work greater than the disconne? many thanks for the help !