Is there any common calling frequencies for DMR?

[IC-R20]

I couldn't find anything official but I was scanning through the band and heard a random call from a mobile go out for a radio check on 445.225 and all of a sudden I heard a bunch of other truckers chiming in. I know it's one of the default CCR frequencies but everyone was using valid callsigns this time. I've left the radio on this frequency for the rest of the night and have heard a few other stations testing/trying to find someone to talk to/and just the regular deadkeying.

Is this a common frequency for travelling hams to talk on DMR?

 

[vagrant]

445.225 is a repeater input freq here in central and northern California. I doubt there is an official national freq just for DMR, nor does there need to be one. Honestly, digital simplex modes could just share the same frequencies. Here in central/nor cal one could use the following, but they may not be acceptable in a coordinated band plan elsewhere.

433.500 MHz
441.500 MHz

145.680 MHz
146.580 MHz

 

[merlin]

No official DMR calling frequency I know of. I get breaks on 446.000, then run off to another channel.
Best place for info might be local ham clubs.

 

[IC-R20]

I just got it again today solidly. It sounds like a repeater but the signal meter was moving around and getting low a lot before that it lead me to believe simplex. I managed to pickup a multistate QSO going on that sounded like part of some network. Either I'm picking up someone's hotspot in my area or a distant repeater being knife edged.

Most the activity is on TGID 93 and I'm getting a RadioID of 3120935 most of the time. I'm not sure if that's just a default setting or if that looks familiar to anyone.

Here's a recording I made this afternoon when it was at it's most active:

 

[IC-R20]

Turns out it's a brandmeister linked low power repeater. I was hearing a brandmeister talkgroup on 448.1475 so went on the network map to try and find the callsign but it wasn't listed and then I found this one.

Repeater Info | BrandMeister

brandmeister.network