First my apologies to Chuck I misread the header. Bill is correct there is no requirement to go digital and there is no requirement to go to 6.25 at this time
The FCC has stated that 12.5 KHz is an interim step to 6.25. If this statement follows the procedures of the statement about 10 years ago about the move to 12.5 KHz then we will be forced to go there when the FCC is ready to move us. Most predictions are for 10 to 15 years down the road. The life expectancy of a system for most of the systems I have worked with is 30 years therefore I will not design a NEW system that can not go to 6.25 now unless I have other reasons to do so. P25 and Mototurbo are both 12.5 KHz modes that achieve 6.25 equivalency by using TDMA technology which gives 2 voice paths per 12.5 KHz of bandwidth. After the change to 6.25 these radios will not be able to operate in TDMA mode without some sort of infrastructure (repeater, trunking controller, etc) That will eliminate the ability for talk around channels when the infrastructure goes down in a disaster. Roger --- In [email protected], MCH <m...@...> wrote: > > Can you explain what that means? > > Joe M. > > n5qs wrote: > > (Mototurbo can not operate at 6.25 KHz without infrastructure) >
