SDS100/SDS200: DMR Programming?

[Tcp14Gd]

Folks, I come before the court hoping for an explanation. Can you take a look at this license. Obviously not a hotbed of scanner action but the joint is in my neighborhood and I thought I might try to program something not in the database.

The license says Conventional so I take that to mean it’s not trunked. All the frequencies say MO so that looks like a group with portable radios, right?

When I simply program the frequencies as a conventional group and scan them, there’s activity on two of them. They show as DMR transmissions with color codes and time slots.

But they also display talkgroup IDs. I always thought talkgroups were a child of trunked systems but I’m sure I could be wrong.

Please go easy on me and give me the explanation. Is there any possible programming element here? Of have I stumbled on the best that can be done by just listing and scanning the set of conventional frequencies?

Many thanks. Stay well.

mike

 

[nd5y]

DMR (also P25) can have talkgroups on conventional repeaters or simplex, not just trunked.

The picture is too small for me to see anything. It's better to post a link to the license (FCC web site or RR).

 

[Tcp14Gd]

DMR (also P25) can have talkgroups on conventional repeaters or simplex, not just trunked.

The picture is too small for me to see anything. It's better to post a link to the license (FCC web site or RR).

Thank you. Let me try to do that...

ULS License - Industrial/Business Pool, Conventional License - WRCS303 - MANHATTAN COLLEGE - Frequencies Summary

 

[richardbritt]

Looks like a bunch of simplex 5 watt frequencies. Probably portable radios used around the college for different things. Maintenance, security, ballgames etc.

 

[nd5y]

It's 6 conventional (non-trunked) simplex channels with 40 5 watt radios which probably means hand helds. Emission designators are both DMR and narrow FM.

Actually I think DMR and P25 are required to use talkgroups but I don't have that much experience with programming software. Most of the time for something like that they use talkgroup 1, which is probably the default.

I have never seen anything but talkgroup 1 used on P25 conventional systems around here.

 

[richardbritt]

The fcc is not bringing up the actual license for me, so I don't see actual emission authorized. But I would put it in your scanner in search for the type of of mode. Let the scanner determine what it is.

 

[nd5y]

The fcc is not bringing up the actual license for me,

Try this then.

FCC Callsign WRCS303 (MANHATTAN COLLEGE)

FCC Callsign WRCS303 (MANHATTAN COLLEGE)

www.radioreference.com

 

[Tcp14Gd]

Try this then.

FCC Callsign WRCS303 (MANHATTAN COLLEGE)

FCC Callsign WRCS303 (MANHATTAN COLLEGE)

www.radioreference.com

Thank you very much. I didn't think there was even an entry in the database. Nothing I searched brought it up. I appreciate your time.

 

[Tcp14Gd]

And thanks to all of you.

I guess assumed talkgroups were something generated and administered by a centralized controller. But these days I suppose it’s nothing for the handhelds to have the software and capability. Always learning. Thanks again.

mike

 

[richardbritt]

Thank you for the link.