Yes, and it has the capacity plus data burst on the rest channel it looks like there are 3 frequencies 460.100 453.8125 and 453.600 the first 2 were originally channels 1 and 2 on analog. I am usually decent at figuring out capacity plus systems but since I didn't set this one up it may take a bit unless someone else has more info.
You must either tap the discriminator, or use the line out to feed into your PC. DSD+ DMRdecode and others.... But note as I stated, currently there is no scanner that can decode DMR, or NXDN. Future DMR ability has been seriously hinted at by Whistler.
Yes you can use the dongle and SDR... And DMRDecode etc... Otherwise you need to run an feed to your PC from either an tapped scanner or the line out from the ones with tap built in. And pray they don't have the enhanced security on.... I know these methods work with conventional DMR... Have not heard any raging success stories yet on any of the MotoTRBO TRS's.