BCD325P2/BCD996P2: BCD325P2 Tier 3 Capacity Max Support

dachs494

Member
Joined
Oct 18, 2021
Messages
37
I'm having some issues with getting a Tier 3 system to work correctly on my BCD325P2. I have inputted (and converted) CH IDs from DSDPlus to my BCD325P2, but I cannot get it to switch to a voice call. I see and hear the voice call activity on DSDPlus, but my BCD325P2 stays on the control channel - silent. It is a Capacity Max T3 system.

Here is the system in question, although the information in the database is outdated for the site I am listening to:

Here is what I have configured in DSDPlus, and it receives voice calls perfectly:
TIIInonStd, H0, 58, 825, 454.14375, 454.14375, 0
TIIInonStd, H0, 58, 826, 454.14375, 454.14375, 0
TIIInonStd, H0, 58, 1860, 461.600, 461.600, 0
TIIInonStd, H0, 58, 1861, 461.600, 461.600, 0
TIIInonStd, H0, 58, 2275, 464.200, 464.200, 0
TIIInonStd, H0, 58, 2276, 464.200, 464.200, 0

And here is my configuration on the BCD325P2:
LCN Frequency
412 454.14375
929 461.600
1137 464.200

The color code is set to search for all frequencies. I tried to program the frequencies in as One Frequency Trunk, too, so I could at least hear the voice traffic, but I couldn't receive anything that way either. Any help would be appreciated. Thanks.
 

buddrousa

Member
Premium Subscriber
Joined
Jan 5, 2003
Messages
11,975
Location
Retired 40 Year Firefighter NW Tenn
Your LCN's look to be way off.
What Site are you using I do not see it at a quick qlance but compared to other sites you are way off for UNIDEN.
LCN Ch ID Frequency Color Code
173 347 452.150 3
173 348 452.150 3
178 357 452.2125 3
178 358 452.2125 3
190 381 452.3625c 3
190 382 452.3625c 3
196 393 452.4375 3
196 394 452.4375 3
 

dachs494

Member
Joined
Oct 18, 2021
Messages
37
Your LCN's look to be way off.
What Site are you using I do not see it at a quick qlance but compared to other sites you are way off for UNIDEN.
LCN Ch ID Frequency Color Code
173 347 452.150 3
173 348 452.150 3
178 357 452.2125 3
178 358 452.2125 3
190 381 452.3625c 3
190 382 452.3625c 3
196 393 452.4375 3
196 394 452.4375 3
I thought the correct way to convert DSDPlus CH IDs to Uniden-compatible LCNs was to divide by 2 and subtract 1? Do I have that wrong?
This is the site I am listening to (Day Wireless (DMR) Site: Arlington). The database is outdated so I searched for the other LCNs/Frequencies myself.

This is what I converted.
825 (DSDPlus) ---> 412 (Uniden)
1861 (DSDPlus) ---> 929 (Uniden)
2275 (DSDPlus) ---> 1137 (Uniden)
 

buddrousa

Member
Premium Subscriber
Joined
Jan 5, 2003
Messages
11,975
Location
Retired 40 Year Firefighter NW Tenn
454.14375 LCN 492
461.60000 LCN 1685
464.20000 LCN 2101

 

dachs494

Member
Joined
Oct 18, 2021
Messages
37
454.14375 LCN 492
461.60000 LCN 1685
464.20000 LCN 2101

Hi,
Those LCNs you gave me did not work. I also downloaded the tool you linked, provided the necessary info, and it gave me the same LCNs I had in my initial post, which contained the following:
825 (DSDPlus) ---> 412 (Uniden)
1861 (DSDPlus) ---> 929 (Uniden)
2275 (DSDPlus) ---> 1137 (Uniden)

After some searching on Radio Reference forums, I believe that it is just a bug in Uniden's firmware (at the least, in the BCD325P2's firmware) that has yet to be fixed.
 

cg

Member
Premium Subscriber
Joined
Dec 13, 2000
Messages
4,829
Location
Connecticut
I wouldn't be surprised if that was a TIIIStd system as a System ID of 0 is odd. Those talkgroup numbers look like CPS-P3 is being used for numbering.
 

buddrousa

Member
Premium Subscriber
Joined
Jan 5, 2003
Messages
11,975
Location
Retired 40 Year Firefighter NW Tenn
This setup works on the 3 DMR T3 systems I have here with a 325p2 996p2 436 536 sds100 sds200 also I have used my poorman's 160dn 260dn to listen to 2 or the 3 systems but as reported by me while the x60's will hear the traffic they will not track or show TG's.
 

seagravebuff60

Short Bus Reject
Feed Provider
Joined
Jun 11, 2016
Messages
1,048
Location
New York State
I thought the correct way to convert DSDPlus CH IDs to Uniden-compatible LCNs was to divide by 2 and subtract 1? Do I have that wrong?
This is the site I am listening to (Day Wireless (DMR) Site: Arlington). The database is outdated so I searched for the other LCNs/Frequencies myself.

This is what I converted.
825 (DSDPlus) ---> 412 (Uniden)
1861 (DSDPlus) ---> 929 (Uniden)
2275 (DSDPlus) ---> 1137 (Uniden)
Yes, Kind of...... So, 2 of the LCNs look to be correct. I use this method from GTR8000 below. I devide the odd numbered Channel ID (LSN) by 2 and then round it down to the whole number. There are a diffrent ways to calculate it but i find this the easiest and most straight foward.

To convert a DSD+ Ch # to a LCN for a Capacity Max system, divide the oddly numbered DSD+ Ch # by 2, then round that down to the whole number.
So for example:
279/2 = 139.5, so the LCN is 139
485/2 = 242.5, so the LCN is 242
1807/2 = 903.5, so the LCN is 903
1929/2 = 964.5, so the LCN is 964

You should not be seeing evenly numbered Ch #'s in DSD+, however if you do, divide by 2 then subtract 1. So in the examples above, 280 would still be LCN 139, 485 would still be LCN 242, etc.

So in this case for your calculations:
Odd Numbered CH ID:Calculation:LCN:
825825/2=412.5 412
18611861/2=930.5930
22752275/2=1137.51137

I see you mentioned that this is a bug for the 325P2 with DMR. Im assuming you have the latest firmware? Also do you have another Uniden radio to test this out on like an SDS?

454.14375 LCN 492
461.60000 LCN 1685
464.20000 LCN 2101
Im not sure how you calculated that. Thats way off. Refer to my calulations above.

I wouldn't be surprised if that was a TIIIStd system as a System ID of 0 is odd. Those talkgroup numbers look like CPS-P3 is being used for numbering.
Capacity Max is a Non-Standard system. I also think CPS-P3 is only for Hytera.
 

dachs494

Member
Joined
Oct 18, 2021
Messages
37
es, Kind of...... So, 2 of the LCNs look to be correct. I use this method from GTR8000 below. I devide the odd numbered Channel ID (LSN) by 2 and then round it down to the whole number. There are a diffrent ways to calculate it but i find this the easiest and most straight foward.
Thanks for clarifying that.

I see you mentioned that this is a bug for the 325P2 with DMR. Im assuming you have the latest firmware? Also do you have another Uniden radio to test this out on like an SDS?
Yes. I updated the firmware recently to the latest (1.11.03).
Unfortunately, I do not have another DMR-capable receiver with me. I do wonder if this issue could be caused by the system being non-Standard (Motorola's Capacity Max). I don't think there are any Tier 3 standard systems around here for me to test on, though.
 

mcjones2013

Radio Communications Enthusiast
Premium Subscriber
Joined
Sep 15, 2012
Messages
767
Location
Sacramento, CA
Can you hear the voice traffic when monitoring in DSDPlus? What antenna setup are you using for DSDPlus, and what antenna setup are you using for your scanner?
 

dachs494

Member
Joined
Oct 18, 2021
Messages
37
Can you hear the voice traffic when monitoring in DSDPlus? What antenna setup are you using for DSDPlus, and what antenna setup are you using for your scanner?
Yes, all the voice traffic comes through perfectly in DSDPlus. I have a very good signal there, and my BCD325P2 displays full bars. Just using a real generic telescopic antenna that came with the SDR, and I have used both an old Radioshack antenna and Remtronix 800B for the Uniden. I can see "DT3" in the bottom right corner when holding on a talkgroup, so I'm positive it's not a reception issue.

@JoeBearcat , hopefully, this can be looked into and resolved in a firmware update in the future if this really is an issue with the BCD325P2 itself, which I'm reasonably sure it is after some research.
 

seagravebuff60

Short Bus Reject
Feed Provider
Joined
Jun 11, 2016
Messages
1,048
Location
New York State
Thanks for clarifying that.
No Problem. Glad I could help.

Yes. I updated the firmware recently to the latest (1.11.03).
Unfortunately, I do not have another DMR-capable receiver with me. I do wonder if this issue could be caused by the system being non-Standard (Motorola's Capacity Max). I don't think there are any Tier 3 standard systems around here for me to test on, though.
I haven't heard any issues about the 325P2 with DMR Cap MAX. As far as uniden is concerned, I think each DMR Trunked Type is set up as a MOTOTRBO Trunk. How is your signal on the 325? What kind of antenna are you using? EDIT: See my post directly below.

Yes, all the voice traffic comes through perfectly in DSDPlus. I have a very good signal there, and my BCD325P2 displays full bars. Just using a real generic telescopic antenna that came with the SDR, and I have used both an old Radioshack antenna and Remtronix 800B for the Uniden. I can see "DT3" in the bottom right corner when holding on a talkgroup, so I'm positive it's not a reception issue.

@JoeBearcat , hopefully, this can be looked into and resolved in a firmware update in the future if this really is an issue with the BCD325P2 itself, which I'm reasonably sure it is after some research.
Yes, I also believe this is a firmware issue. I'm ruling out reception issues just like you did based on the fact that you see DT3 and full bars. Do you hear any voice when holding on a Talkgroup? Unfortunately, I do not have any Cap Max Systems near me at the moment, so I'm unable to replicate this issue.

I doubt you will get an answer from @JoeBearcat. So, in the meantime, if DSD+ is working great, I would stick with that, but I understand the need to have DMR on another radio. Uniden support is one of the worst ive dealt with; they are completely clueless.

Can you hear the voice traffic when monitoring in DSDPlus?
Yes, he already mentioned that in his original post.
 
Last edited:

dachs494

Member
Joined
Oct 18, 2021
Messages
37
Do you hear any voice when holding on a Talkgroup?
No, I don't hear anything when holding on a talkgroup. It stays on the control channel with "DT3" displayed in the corner. But when I manually hold on one of the voice channel frequencies that are broadcasting traffic (such as 464.200), I can hear everything just fine - and the talkgroup ID is displayed correctly, too. So it's really just a matter of the scanner not acknowledging the system's request to tune to an active voice channel. I tried a couple of different sites on this system, programming them from the RR database (paying close attention to the LCN listed), and they all had this issue.

Anyway, I'm hoping that we can get a response from Uniden so we can know for sure if this is a firmware issue. Thanks for the help, everyone.
 

pro92b

Mutated Member
Premium Subscriber
Joined
Jun 27, 2002
Messages
1,949
DSD+ only needs one slot number matched with a frequency to work. You list 461.6 as matched with slots 1860 and 1861 but I think it should be 1859 and 1860. Since 1860 is correct that allows DSD+ to work for you even if 1861 is wrong. Your LCN values look correct to me.

BCD325P2 and BCD996P2 do have problems tracking some Tier 3 systems. See the links below.


Homeland Defense Network, DMR Tier 3 Standard, was formerly Marcus Spectrum Holdings, LLC. The database listing is under Homeland Defense Network in Connecticut.

The firmware occupies all the memory space so any update would likely be very limited in scope. Only Uniden knows if the deficient Tier 3 tracking can be corrected in the codespace they have.

 

enosjones

Member
Premium Subscriber
Joined
Feb 22, 2006
Messages
2,004
Location
Price, Utah
454.14375 LCN 492
461.60000 LCN 1685
464.20000 LCN 2101

that website says it won't work for cap max or others only tier 3 dmr, not con+ or cap max.. according to the brief preview on the link.
 

seagravebuff60

Short Bus Reject
Feed Provider
Joined
Jun 11, 2016
Messages
1,048
Location
New York State
No, I don't hear anything when holding on a talkgroup. It stays on the control channel with "DT3" displayed in the corner. But when I manually hold on one of the voice channel frequencies that are broadcasting traffic (such as 464.200), I can hear everything just fine - and the talkgroup ID is displayed correctly, too. So it's really just a matter of the scanner not acknowledging the system's request to tune to an active voice channel. I tried a couple of different sites on this system, programming them from the RR database (paying close attention to the LCN listed), and they all had this issue.

Anyway, I'm hoping that we can get a response from Uniden so we can know for sure if this is a firmware issue. Thanks for the help, everyone.
I may have forgotten to ask this, but do you have Talkgroups programmed, or is the system in ID Search mode? I think I remember you mentioning it's in ID Search mode because you do not know what TGs are active in your area.

It seems like the 325P2 is failing to trunk track properly, as you mentioned. @JoeBearcat or someone at uniden would have to look into this further.
 

enosjones

Member
Premium Subscriber
Joined
Feb 22, 2006
Messages
2,004
Location
Price, Utah
that website says it won't work for cap max or others only tier 3 dmr, not con+ or cap max.. according to the brief preview on the link.
Seems like a few people are interested in this calculator I mentioned in a post a few days ago.
Here it is.

gFV3ou3.png



This is only for calculating LCNs for DMR TIII.
It will not work for CAP+,CAP MAX, CON+ or any other system.



the LCNs configuration for unidens may not be half of the ones that show on dsdplus, especially is it is something other than dmr tier 3. if its cap + cap max or con + it may be a different lcn configuration for the number for unidens different from what dsdus shows. or the same as dsdplus shows. I know here in Utah only our gas company which used to be (questar/dominion energy ) is dmr tier 3, so a local person figured up the lcn configuration to get the unidens to not skip transmissions. not sure how it works on other simular systems....
 

seagravebuff60

Short Bus Reject
Feed Provider
Joined
Jun 11, 2016
Messages
1,048
Location
New York State
I think we are confusing this thread's topic. The issue is with a Motorola Capacity MAX System, not Capacity Plus or Connect Plus. Capacity MAX is DMR Tier III (Motorola's version), as @cg mentioned above. The calculator will work for it.
 
Top