Duke Energy Cleveland county

[scruggsy]

Is it possible to monitor Duke Energy as well as other local utilities in and around Cleveland county? the Frequencies are in RRDB but I can't seem to get anything from them.
Thanks in advance for any assistance.

 

[mtindor]

Is it possible to monitor Duke Energy as well as other local utilities in and around Cleveland county? the Frequencies are in RRDB but I can't seem to get anything from them.
Thanks in advance for any assistance.

For Duke 800 mhz P25, you need a scanner capable of monitor TDMA control channels. Can't remember if any scanner does that at this point. I'm only aware of things like SDRTrunk, DSDPlus Fast Lane, OP25, and the Bluetail Technology devices and DSD-FME being able to monitor TDMA control channels.

The vast majority of P25 systems in the world have FDMA (one-slot) control channels and you can monitor them. Duke Energy, AEP, and maybe a couple of other P25 systems are using TDMA (2-slot) control channels.

Mike

 

[reconrider8]

Its also my understanding that the new Duke system is strapped so nothing will monitor it anyway

 

[mtindor]

Its also my understanding that the new Duke system is strapped so nothing will monitor it anyway

Yeah, for the most part true. Although a few users I believe have reported a handful of unencrypted talkgroups -- maybe mostly active for interop or something during major events. But yeah, that's true -- unless you like gathering aliases of radios and figuring out what the encrypted talkgroups are. Then it's pretty fun to monitor such a system.

But good catch -- I forgot it was nearly 100% enc. Even if one can monitor, they can't Thanks for adding that.

 

[brian]

I'm not sure that Duke Energy in the Carolinas has fully converted from the Harris Opensky system to the "new" P25 TDMA system. Last I looked, the Opensky channels were still blasting away in many nearby locations. I haven't checked recently.

Either way, there's no scanner that can monitor an OpenSky system, and the new P25 system is almost completed encrypted. So there's a pretty low likelihood that you're going to hear much.

Seems like Rutherford Electric operates in part of Cleveland County. They operate a multi-site DMR system that might have some interesting traffic, assuming it's not also encrypted.

 

[richardbritt]

Question, is there a way to tell if a P25 phase 2 TDMA system is using a FDMA or TDMA control channel from looking at their licensed emission on their FCC license, or just have to try listening locally with a scanner and seeing what I get. I enjoy doing deep dives watching for new systems and watching FCC license approvals, and wanting to see if you have any ideas.

Thanks

 

[mtindor]

Question, is there a way to tell if a P25 phase 2 TDMA system is using a FDMA or TDMA control channel from looking at their licensed emission on their FCC license, or just have to try listening locally with a scanner and seeing what I get. I enjoy doing deep dives watching for new systems and watching FCC license approvals, and wanting to see if you have any ideas.

Thanks

Keep in mind that If a license is using a TDMA control channel, it's going to be a PHase II P25 system and is going to have TDMA voice channels as well. So all of the frequencies on the license are going to have the designator. And on systems that are Phase II but have an FDMA control channel, it is likely that all of the frequencies are still going to be licensed as TDMA. So you aren't going to be able to look at licensed emissions and know for sure whether something is using a TDMA or FDMA control channel.

If you look on Duke Energy P25 and AEP P25 licenses you'll see one or more of the following, amongst many other licensed emissions.

9K80D7W	P25 Phase II fixed-end 2-slot TDMA (Harmonized Differential Quadrature Phase Shift Keyed modulation – H-DQPSK), per Motorola literature.
9K80F1D	P25 Phase II fixed-end 2-slot TDMA H-DQPSK data, per Harris MASTR-V literature.
9K80F1E	P25 Phase II fixed-end 2-slot TDMA H-DQPSK voice (interpolation of MASTR-V literature).

 

[scruggsy]

thanks guys, good information.