NXDN and DMR emission designations on single licensed frequency

[andy404ns]

Hi all,

Why would a single frequency have both NXDN and DMR emission designations assigned to it? Do some entities actually switch between the two or is this more of a "we selected all the things just in case" type of situation? Here is an example:

ULS License - Industrial/Business Pool, Trunked License - WQPH234 - Fidelity Investments - Frequencies Summary

Thanks!

 

[RaleighGuy]

Hi all,

Why would a single frequency have both NXDN and DMR emission designations assigned to it? Do some entities actually switch between the two or is this more of a "we selected all the things just in case" type of situation? Here is an example:

ULS License - Industrial/Business Pool, Trunked License - WQPH234 - Fidelity Investments - Frequencies Summary

Thanks!

Many licenses select multiple designations as a just in case since it doesn't cost more.

 

[mmckenna]

I've done something similar on a few licenses. I have a repeater licensed for analog, NXDN and P25. Currently it's only running analog on the repeater, NXDN on simplex, and I can turn up P25 if I ever need to. As RG said, it's the same price to add it to the license, and makes it easy to change things down the road.

 

[andy404ns]

Ah interesting. I guess I'm now more surprised that I don't see this across every license I look at.

Thanks for the quick input!

 

[mmckenna]

Ah interesting. I guess I'm now more surprised that I don't see this across every license I look at.

Thanks for the quick input!

Really depends on the person doing the licensing and the needs.

One of the ones I have is a Quantar repeater. It's analog/P25 capable. I'm not currently running P25. At the time I licensed it, there was the possibility of needing to run it in mixed (analog/P25) mode depending on the situation. I run some NXDN radios on the simplex output for some low power use. It was about thinking ahead of what I might need in the future, and putting it in the frequency coordination request.

Some radio shops will do that for customers, idea is that they can upsell them on new digital radios down the road and don't have to pay to change the license.

Some just license for what they actually need.

You'll find all kinds of combinations….

 

[KK6ZTE]

Emission designators don't cost anything to add at time of coordination. Only licensing for what you have right now, and not thinking about the future at all, is foolish.

 

[Echo4Thirty]

We just did a fire department's VHF repeaters they are adding. Their primary modes will be NBFM and P25, but we went ahead and added NXDN and DMR as well since it was zero cost at the time of coordination. While they may NEVER use NX or DMR, its open for them should they decide to for whatever reason.

 

[andy404ns]

Very useful info. I didn't know that you could add whatever emissions designations you want without extra cost.

For the scanner user, I guess that means that the only way to know for sure what they're using is to get close and decode it. Gotta love it!

Thanks again everyone!