BCD436HP/BCD536HP: P25 (Uniden)

[Ngennn]

Please help😭😩. I have a Uniden BCD436HP and I’m using this frequency and for some reason I only hear some transmissions, and they randomly cut off(BUT I DO HEAR IT) It’s not even encrypted or partially encrypted
I inserted 2 images of what I’m trying to listen to(Sheriff 1 digital) PLEASE any recommendations or tips would be much appreciatedView attachment 119716

 

[JoeBearcat]

Can't view the attachments, but try this:

Disable Channel Priority, Close Call, and Weather Priority.

 

[Ngennn]

Can't view the attachments, but try this:

Disable Channel Priority, Close Call, and Weather Priority.

They use a P25 Phase II

System Voice:	APCO-25 Common Air Interface Exclusive

 

[hiegtx]

They use a P25 Phase II

System Voice:	APCO-25 Common Air Interface Exclusive

Exactly which agency are you trying to scan?

The only agencies that I see, using P25 Phase II, are Union City, on their own trunked system, and Hoboken, which has talkgroups on the statewide system, but all those listed are encrypted. Also see below.

For the trunked systems, did you program their channels as conventional? Or did you correctly program (or append) the system in Sentinel or other software?
The Sheriff's department lists several conventional channels, one of which is shown as P25. But conventional channels using P25 can only be Phase I. Phase II can only be used on trunked systems.

Although it is not linked to a specific agency, there is a Hudson County P25 Phase II system, but with very limited talkgroups:

Hudson County Trunking System, Jersey City, New Jersey

Hudson County Trunking System Profile

www.radioreference.com

In all likelihood, there may be more talkgroups in use on the Hudson system, than are currently listed.

 

[JoeBearcat]

They use a P25 Phase II

System Voice:	APCO-25 Common Air Interface Exclusive

If they use P25 Phase II odds are they may also be simulcast (if not encrypted). The 436 can have issues decoding simulcast systems.

 

[Ngennn]

Exactly which agency are you trying to scan?

The only agencies that I see, using P25 Phase II, are Union City, on their own trunked system, and Hoboken, which has talkgroups on the statewide system, but all those listed are encrypted. Also see below.

For the trunked systems, did you program their channels as conventional? Or did you correctly program (or append) the system in Sentinel or other software?
The Sheriff's department lists several conventional channels, one of which is shown as P25. But conventional channels using P25 can only be Phase I. Phase II can only be used on trunked systems.

Although it is not linked to a specific agency, there is a Hudson County P25 Phase II system, but with very limited talkgroups:

Hudson County Trunking System, Jersey City, New Jersey

Hudson County Trunking System Profile

www.radioreference.com

In all likelihood, there may be more talkgroups in use on the Hudson system, than are currently listed.

(I posted this in another forum so i coppied and pasted it here, this is more descriptive) I have a Uniden bcd436hp, im attmepting to tune into a county sheriff near me. They run a P25 Phase II and the system voice (not sure if this matters) is a APCO-25 common air interface. Now i used to have a crappy Baeofang LOL, BUT i was able to only hear dispatch and NOT the officers on the road, reason being is becasue the officers are on a digital system and dispatch uses (I guess) a different system. Now on my uniden I can hear both disaptch and officers on the road but it cuts off most of the time which is werid because Theyre not encypted nor partially encrypted. The werid thing is, when i look at the "talk group" there is only one group and its the prosecutors office and they are Fully encrypted.
PLEASE someone give me tips or reccomendations it would be much appreicated. Clearly i am on the "unexperienced side" but small tips would go a long way.
SIDE NOTE: if someone would go out of their way to personally look it up on radio refrence and let me know, that would be AMAZING!!
Location: Hudson County, New Jersey.
Hudson County Sherrif Department
THANK YOU

 

[hiegtx]

If they use P25 Phase II odds are they may also be simulcast (if not encrypted). The 436 can have issues decoding simulcast systems.

Though not tagged as Simulcast, the site for the Union City system has two transmit towers, so it is simulcast. The Hudson County system is definitely simulcast.

 

[Ngennn]

If they use P25 Phase II odds are they may also be simulcast (if not encrypted). The 436 can have issues decoding simulcast systems.

I think the simulcast might be the problem, because the transmition starts off Clear but then slowly breaks up. Are there any solutions to maybe improve it?

Though not tagged as Simulcast, the site for the Union City system has two transmit towers, so it is simulcast. The Hudson County system is definitely simulcast.

Hudson county is really my main priority

 

[hiegtx]

(I posted this in another forum so i coppied and pasted it here, this is more descriptive) I have a Uniden bcd436hp, im attmepting to tune into a county sheriff near me. They run a P25 Phase II and the system voice (not sure if this matters) is a APCO-25 common air interface. Now i used to have a crappy Baeofang LOL, BUT i was able to only hear dispatch and NOT the officers on the road, reason being is becasue the officers are on a digital system and dispatch uses (I guess) a different system. Now on my uniden I can hear both disaptch and officers on the road but it cuts off most of the time which is werid because Theyre not encypted nor partially encrypted. The werid thing is, when i look at the "talk group" there is only one group and its the prosecutors office and they are Fully encrypted.
PLEASE someone give me tips or reccomendations it would be much appreicated. Clearly i am on the "unexperienced side" but small tips would go a long way.
SIDE NOTE: if someone would go out of their way to personally look it up on radio refrence and let me know, that would be AMAZING!!
Location: Hudson County, New Jersey.
Hudson County Sherrif Department
THANK YOU

The Hudson County trunked system is in the master database in Sentinel:

Append that system into a Favorites list.
Once you've done that, edit the list & turn "ID Search" on.

Using ID Search will let the scanner receive active talkgroups that are not in the database. Note that you would only see the numeric TGID, the 'text tag' would show as 'Unknown'. If you start hearing additional talkgroups that are not identified, listen to them so that you can determine what they are being used for. Dispatch? Talk? (such as car to car) Tac? (operations on scene at an incident?)

As already noted above, that is a simulcast system, so you may have problems getting clear reception. If simulcast is an issue, there are a few things you can try, such as 'less antenna' (as in a paperclip), or a directional antenna. More information & discussion on simulcast issues can be found in the Wiki: Simulcast digital distortion - The RadioReference Wiki

 

[hiegtx]

Hudson county is really my main priority

This is an hpe file for the Hudson County system. Save the file to your PC, then use Windows Explorer (also known as File Explorer) to extract the Hudson County.hpe file.

Import that into Sentinel to the Favorites list of your choice. You can do that using the drop-down File menu.

 

[Ngennn]

The Hudson County trunked system is in the master database in Sentinel:
View attachment 119723
Append that system into a Favorites list.
Once you've done that, edit the list & turn "ID Search" on.
View attachment 119724
Using ID Search will let the scanner receive active talkgroups that are not in the database. Note that you would only see the numeric TGID, the 'text tag' would show as 'Unknown'. If you start hearing additional talkgroups that are not identified, listen to them so that you can determine what they are being used for. Dispatch? Talk? (such as car to car) Tac? (operations on scene at an incident?)

As already noted above, that is a simulcast system, so you may have problems getting clear reception. If simulcast is an issue, there are a few things you can try, such as 'less antenna' (as in a paperclip), or a directional antenna. More information & discussion on simulcast issues can be found in the Wiki: Simulcast digital distortion - The RadioReference Wiki
[/QU

ok, do i need to purchase anything to open that file.

 

[hiegtx]

ok, do i need to purchase anything to open that file.

No. Windows Explorer can extract the file for you. Locate the file, where you saved it, then <right><click>.

You'll see the option to extract.

You can also download & install 7-Zip, which is free, & use it instead.

 

[JoeBearcat]

I think the simulcast might be the problem, because the transmition starts off Clear but then slowly breaks up. Are there any solutions to maybe improve it?

Upgrade to the SDS100 which is designed for simulcast systems. (IF simulcast is the issue)

 

[Ngennn]

Question, what is Hudson counties unit ID

The Hudson County trunked system is in the master database in Sentinel:
View attachment 119723
Append that system into a Favorites list.
Once you've done that, edit the list & turn "ID Search" on.
View attachment 119724
Using ID Search will let the scanner receive active talkgroups that are not in the database. Note that you would only see the numeric TGID, the 'text tag' would show as 'Unknown'. If you start hearing additional talkgroups that are not identified, listen to them so that you can determine what they are being used for. Dispatch? Talk? (such as car to car) Tac? (operations on scene at an incident?)

As already noted above, that is a simulcast system, so you may have problems getting clear reception. If simulcast is an issue, there are a few things you can try, such as 'less antenna' (as in a paperclip), or a directional antenna. More information & discussion on simulcast issues can be found in the Wiki: Simulcast digital distortion - The RadioReference Wiki

most informative thing ive heard yet! now one more question. do I enter the frequency that is

would you be able to let me know the unit ID?

 

[hiegtx]

Question, what is Hudson counties unit ID

most informative thing ive heard yet! now one more question. do I enter the frequency that is

would you be able to let me know the unit ID?

For the file I created, for the Hudson County system, the frequencies are there, in the site, which is part of the system. You do not need to add anything.

Run that system as ID Search, & I suspect that you'll see additional talkgroups come up, if the sheriff has moved to that system. You can set the scanner to record everything it receives, then copy the audio files over to your PC. Then, using the Universal Scanner Audio Player, you can sort the recordings by TGID, then listen to a string of them. Listening to a selection of a specific TGID, you stand a better chance of piecing a conversation together, which helps you determine which agency is using that talkgroup, and for what, As you identify a specific TGID, add that talkgroup to the system's file in your Favorites list, since you know know who it is. And, once you start confirming specific talkgroups, be sure to submit the newly found ones to the database, so that they can be included in future updates.

If, by Unit ID, you mean the radio (not talkgroup) ID, you'll have to try & piece that together when monitoring.

 

[hiegtx]

I think the simulcast might be the problem, because the transmition starts off Clear but then slowly breaks up. Are there any solutions to maybe improve it?

Hudson county is really my main priority

Read the Simulcast wiki page I linked earlier. There's no silver bullet to solve the issue using your 436HP. The SDS series scanners (SDS100 & SDS200) can deal with it, as can the Unication pagers and the P25RX Blue Tail. But the last two are not full featured scanners. There's limitations on how much they can do,

Try moving your 436HP around the house. Sometimes a few feet in one direction or another make all the difference. In some cases, attenuation can help, or laying the scanner on it's side instead of vertical may help. The directional antenna, such as a yagi, can work for some users, but aiming at only one tower may hinder your reception of other systems.

 

[Ngennn]

Thanks man so much, for even taking the time to help. I’m extremely new to scanners, but I’m learning new things about the Uniden everyday, so I just need to slowly get this thing to work lol