The 9100 only does D-Star in simplex mode on 28MHz and 50Mhx where it is authorized by the FCC (plus the higher bands simplex/duplex/repeaters). D-Star below
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, Mar 28 9:45 AM
The 9100 only does D-Star in simplex mode on 28MHz and 50Mhx where it is authorized by the FCC (plus the higher bands simplex/duplex/repeaters). D-Star below 28Mhz has not been authorized because of the bandwidth among other things.
DV Voice using Codec-2 which can be narrowed down to 1.1Khz is not compatible with D-Star but has its own set of users and repeaters etc but not nearly anything like D-Star.There are a few systems in this group and some of them cross repeat with D-Star systems letting one user talk to another.
It has also not need approved by the FCC at all. On the other hand it has not been disapproved either. They are usually 1-2 years behind technology on these things. However they do state that only approved modes can be used. Generally as long as the "test" mode does not cause interference and complaints
they ignore it. When it gets enough use to become an issue (like TDMA now) they make some determinations. However they have repeatedly turned down requests for unlimited and non specified modes based solely on bandwidth. DV Voice is narrow enough to almost fall into the data modes. and AM and DSB are wide enough to almost allow narrow band D-Star. But manufacturers are not going to make equipment designed for unapproved modes. Most of that comes from LMR and PS radios that get converted.
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