DMR XPT scanning on the BCD325P2

[scanphreak]

Does anyone on here have some experience with successfully scanning a DMR XPT system?

I have near me a casino that is using XPT (Hytera) and I have the system programmed like so:

DMR/MotoTRBO > MotoTRBO Trunk > Site > Set Frequencies > enter in all 5 frequencies identified that have the 7K60FXE emission, with LCN of 0 for all. > SCAN

The scanner is in SEARCH ID mode, and scanning just that site with nothing in the groups. As ID SEARCH scrolls across the screen I can see a signal meter icon briefly popup and disappear, so I'm receiving the bursts sent out on one of the 5 frequencies. I never hear any voice traffic.

So then I'll press HOLD, and let the scanner sit on the 1st frequency in the list, and of course I'll see the CC1 and XPT icons show up on the display, and see the signal meter pop up as well. Eventually I'll start hearing voice traffic, and seeing various talk group IDs display. So I know the scanner is receiving traffic, I'm hearing it. But if I put the scanner back into SCAN (ID SEARCH) nothing comes through. I confirmed this by taking DSD+ with an SDR and parking it on one of their frequencies and will hear voice traffic, but my BCD325P2 nothing, it just keeps scanning.

So I played around, I took my BCD436HP, and attempted to use the LCN Finder, and it did identify LCN 2 on one of the 5 frequencies. So I stored that frequency with LCN 2, and left everything else as LCN 0. No change. I started locking out some of the frequencies and only scanning the first 2. No change.

So I'm looking for some experienced uniden users here who have monitored a Hytera XPT system successfully.

 

[mtindor]

Does anyone on here have some experience with successfully scanning a DMR XPT system?

I have near me a casino that is using XPT (Hytera) and I have the system programmed like so:

DMR/MotoTRBO > MotoTRBO Trunk > Site > Set Frequencies > enter in all 5 frequencies identified that have the 7K60FXE emission, with LCN of 0 for all. > SCAN

The scanner is in SEARCH ID mode, and scanning just that site with nothing in the groups. As ID SEARCH scrolls across the screen I can see a signal meter icon briefly popup and disappear, so I'm receiving the bursts sent out on one of the 5 frequencies. I never hear any voice traffic.

So then I'll press HOLD, and let the scanner sit on the 1st frequency in the list, and of course I'll see the CC1 and XPT icons show up on the display, and see the signal meter pop up as well. Eventually I'll start hearing voice traffic, and seeing various talk group IDs display. So I know the scanner is receiving traffic, I'm hearing it. But if I put the scanner back into SCAN (ID SEARCH) nothing comes through. I confirmed this by taking DSD+ with an SDR and parking it on one of their frequencies and will hear voice traffic, but my BCD325P2 nothing, it just keeps scanning.

So I played around, I took my BCD436HP, and attempted to use the LCN Finder, and it did identify LCN 2 on one of the 5 frequencies. So I stored that frequency with LCN 2, and left everything else as LCN 0. No change. I started locking out some of the frequencies and only scanning the first 2. No change.

So I'm looking for some experienced uniden users here who have monitored a Hytera XPT system successfully.

The scanner isn't going to trunktrack an XPT system. Did you try just adding each freq as a conventional DMR freq?

 

[ka3jjz]

It won't scan it well; it seems there are a few bugs in the XPT implementation. However, what has been found is documented here...

Programming the P2 Scanners for DMR / MOTOTRBO - The RadioReference Wiki

wiki.radioreference.com

This assumes, of course, that you have the DMR upgrades all done

Mike

 

[62Truck]

@JoeBearcat

Any idea when this is going to be fixed?

 

[scanphreak]

The scanner isn't going to trunktrack an XPT system. Did you try just adding each freq as a conventional DMR freq?

No I haven't tried entering them in as Conventional (yet)

edit: I just tried that and it doesn't work. Because all 5 of these frequencies are sending out a burst the scanner is still missing calls, and now I can't even see the talk group IDs. So I guess all I can do is just leave it programmed as a DMR/MotoTRBO system, and set the scanner on HOLD on the most active frequency.

 

[ka3jjz]

Did you try the tip in the page I linked?

It would help if you could name the casino, and what state it's in. If it's in the RR database, that too would be a help. Someone in that state's forum might have an answer or two.

Mike

 

[scanphreak]

It won't scan it well; it seems there are a few bugs in the XPT implementation. However, what has been found is documented here...

Programming the P2 Scanners for DMR / MOTOTRBO - The RadioReference Wiki

wiki.radioreference.com

This assumes, of course, that you have the DMR upgrades all done

Mike

thanks for the link. I see the description in there talks about getting the LCN for an XPT system. Unfortunately I'm not getting the channel number information on the scanner or in DSD+. I do have DMR in both the 325 and 436.

 

[ka3jjz]

Again, where is this casino you mentioned? What is the name and state where it is?

If it's in the database, that link will help. If not, I'd get an el cheapo RTL SDR and run a utility on it to find the info you need....

No one can help you without such basic information.

Mike

 

[ka3jjz]

Since the search function here seems to be broken, you can use the following search string in Google to bring up past discussions on this topic. I gotta add this to our wiki...

xpt site:forums.radioreference.com

Mike

 

[cg]

Between the FCC, searching and any other source, you need to figure out all the frequencies used in the system
Try the programming method mentioned in this thread:

BCD436HP/BCD536HP: - Hytera DMR XPT question

Greetings: Has anyone out there ever tried to monitor a Hytera XPT (Extended Pseudo Trunking) system with their Uniden scanners? It took a while to figure out, but I'm pretty certain that the nearby casino I've been trying to program as a NXDN single-channel, Tier 2, or Tier 3 trunked system...

forums.radioreference.com

chris

 

[R0am3r]

No I haven't tried entering them in as Conventional (yet)

edit: I just tried that and it doesn't work. Because all 5 of these frequencies are sending out a burst the scanner is still missing calls, and now I can't even see the talk group IDs. So I guess all I can do is just leave it programmed as a DMR/MotoTRBO system, and set the scanner on HOLD on the most active frequency.

@scanphreak - You peaked my interest so I decided to run a quick test. I monitored the Turning Stone Casino XPT system using my Uniden SDS200 and then compared it to one of the casino frequencies using DSDPlus Fastlane. The assumption for this test is that all of the casino frequencies were associated to one site in my scanner. I watched the behavior of my scanner and now believe it starts the scan process, but then gets stuck on one of the four casino frequencies because it keeps seeing the XPT pulse. This pulse seems to slow the scanning process significantly, but will eventually move to the next frequency. As for my instance of DSDPlus, it was busy monitoring the single frequency with all sorts of voice traffic. The Uniden missed much of this traffic because of the pulses.

A potential workaround for your scanner is to create a site for each frequency. This configuration forces the scanner to move past the current site and scan the next site (and the associated frequency). Using this configuration, I watched the behavior of the scanner for a while and it seems to work well. As you can see from the image, I named the four sites Verona-1 through Verona-4. Please note the Turning Stone Casino system type is MotoTRBO Trunk. Maybe you can try this configuration with your BCD325P2?

 

[scanphreak]

Again, where is this casino you mentioned? What is the name and state where it is?

If it's in the database, that link will help. If not, I'd get an el cheapo RTL SDR and run a utility on it to find the info you need....

No one can help you without such basic information.

Mike

It's not in the DB (yet) I was trying to get everything lined up before submitting. It's Harrah's in Biloxi, MS most of the casinos here are already on the DB except this one, and I guess it being an XPT system is why. It's a lot more complicated than I care to spend time and effort on. I don't need an el cheapo SDR, I already have two SDRPlay RSPdx models. I've connected one using DSD+ I had another thread in the digital format forum. But I was trying to make it work with either my BCD436 or BCD325 with the intention of updating the DB.

 

[adsbgreenock]

Hi Guys, apologies for intruding.

I'm located in Scotland UK.
I am also facing this exact same problem with the SDS200E on XPT systems
On the 456 mhz I have around five of these rest channels with really strong signals and they're a major pain during scanning to be honest.

The scanner just won't go past any of them due to the signal strength of the beacon/pulse.
I posted in another part of the forum but I see you guys have at least found the frequencies of the control channel. I have no such luck.

I'm really toiling with this, I have the rest channels and two way voice comms are apparent every so often, on one of these stronger signals I have around 20 UIDs logged by proscan UID and I'm sure the site belongs to parking attendants but I only have that one rest channel no other frequencies as I'm at a loss how to gain them.

I've tried the mototrbo individual site / frequency thing after proscan answered my post in another part of the forum.

My lists were all over the place attempting to remedy this matter and proscans advice did sort that out.
However come daytime when activity began to peak, the scanner would stop on these rest channels all day long and not budge until it was jogged on.

Is it better just to cut losses and lock these channels out and persevere with the one channel DMR systems? None of these systems are in any databases either.

Any help /advice appreciated

Again apologies if my intrusion has stepped on anyone's toes here.

Kind Regards