TRX2 not receiving Phase 2

[154600]

My TRX2 will not receive any phase 2 systems. All I get is a hiss. I do get a “T” showing it’s properly decoding everything, and the signal bars are showing full signal. The system is not encrypted either. I doubled and triple checked the system is programed correctly. It receives all other modes fine including phase 1. Does anybody know why this would happen? Any help would be appreciated.

 

[hiegtx]

Which system? Link to it in the database?

What is your location? City (or county) and state are sufficient to indicate location.

 

[154600]

Which system? Link to it in the database?

What is your location? City (or county) and state are sufficient to indicate location.

Savannah River Site Trunking System, Aiken, South Carolina

Savannah River Site Trunking System Profile

www.radioreference.com

Here’s the link to the system. It’s indicated in the database as phase 1, however, when it is receiving it’s showing D2, which makes me believe that it is phase 2. The system is not encrypted and it is not a simulcast.

 

[hiegtx]

Savannah River Site Trunking System, Aiken, South Carolina

Savannah River Site Trunking System Profile

www.radioreference.com

Here’s the link to the system. It’s indicated in the database as phase 1, however, when it is receiving it’s showing D2, which makes me believe that it is phase 2. The system is not encrypted and it is not a simulcast.

It's tagged as being a Phase I system, and all the listed talkgroups are Phase I. But, they could have upgraded it and nobody has verified the change and submitted it to the database,

You're more likely to get a helpful answer if you have your thread moved to your state forum. Someone, hopefully near your area, might have a better handle on the system details, as well as any changes. The database entry for the system was last updated in 2023, so no telling what might have changed. Ti have your thread moved, use the "Report" link in the lower left corner of your post. Just add a brief note asking that a moderator move the thread.

Programming for your scanner is identical, regardless of whether P25 Phase I, or Phase II, is in use. I suspect it's more likely that there's been some sort of change in the system rather than your scanner 'going deaf' on Phase II transmissions.

 

[154600]

It's tagged as being a Phase I system, and all the listed talkgroups are Phase I. But, they could have upgraded it and nobody has verified the change and submitted it to the database,

You're more likely to get a helpful answer if you have your thread moved to your state forum. Someone, hopefully near your area, might have a better handle on the system details, as well as any changes. The database entry for the system was last updated in 2023, so no telling what might have changed. Ti have your thread moved, use the "Report" link in the lower left corner of your post. Just add a brief note asking that a moderator move the thread.

Programming for your scanner is identical, regardless of whether P25 Phase I, or Phase II, is in use. I suspect it's more likely that there's been some sort of change in the system rather than your scanner 'going deaf' on Phase II transmissions.

It’s been doing the same thing on other phase 2 systems as well which makes me believe it’s a scanner issue. I’m pretty lost at this point.

 

[hiegtx]

It’s been doing the same thing on other phase 2 systems as well which makes me believe it’s a scanner issue. I’m pretty lost at this point.

What other Phase 2 system?

 

[154600]

What other Phase 2 system?

SC Public Service Authority Trunking System, Various, South Carolina

SC Public Service Authority Trunking System Profile

www.radioreference.com

It does the exact same thing on this one

 

[hiegtx]

SC Public Service Authority Trunking System, Various, South Carolina

SC Public Service Authority Trunking System Profile

www.radioreference.com

It does the exact same thing on this one

That system is straight forward, no simulcast noted, so indeed it could be an issue with the scanner. Maybe try sending Whistler Support a message? Other than that, I'm drawing a blank, unfortunately.

 

[w2lie]

It doesn't say "Simulcast" in the site name, but if you look at the FCC license, there are multiple transmitter locations for at least one site in Aiken County. I'd say this could be Simulcast even though the site name doesn't say it is.
What makes this a bit more confusing is that there are several sites in the DB that are sharing the same FCC License.

So are both site simulcast? Is it only one? Is there an error in the DB?

WPRJ323 is the license for the North Augusta and East Aiken sites, if the DB information is correct.

 

[154600]

It doesn't say "Simulcast" in the site name, but if you look at the FCC license, there are multiple transmitter locations for at least one site in Aiken County. I'd say this could be Simulcast even though the site name doesn't say it is.
What makes this a bit more confusing is that there are several sites in the DB that are sharing the same FCC License.

So are both site simulcast? Is it only one? Is there an error in the DB?

WPRJ323 is the license for the North Augusta and East Aiken sites, if the DB information is correct.

View attachment 202282

That’s a good catch. I still feel like it’s more of a scanner problem because it’s no matter what system I try it on that phase 2 it does the same thing but phase 1 will work fine.

 

[brian]

It doesn't say "Simulcast" in the site name, but if you look at the FCC license, there are multiple transmitter locations for at least one site in Aiken County. I'd say this could be Simulcast even though the site name doesn't say it is.
What makes this a bit more confusing is that there are several sites in the DB that are sharing the same FCC License.

So are both site simulcast? Is it only one? Is there an error in the DB?

WPRJ323 is the license for the North Augusta and East Aiken sites, if the DB information is correct.

View attachment 202282

Regarding the SC Public Service Authority trunked radio system, it is not simulcast.

Regarding the license WPRJ323 that you referenced, along with many other callsigns used by this system, it is true that mulitple sites are licensed on under the same callsign. But if you look at the frequency list, you'll note that each site is licensed for a different set of frequencies. So, this isn't a case of the same signals being transmitted from different towers on the SAME FREQUENCIES at the same time. Rather, it's a networked system that supports roaming from one site to the next, but each site uses its own set of frequencies. So you may hear the same audio on DIFFERENT frequencies at the same time.

The WS-1080 should track this system fine, assuming that upgrades haven't been made fairly recently. It does indeed use Phase II TDMA modulation on the voice frequencies, but I'm fairly certain that it is using a "traditional" Phase I control channel.
OP, start a thread in the SC Forum about it and I imagine folks within monitoring range of the system can weigh in on current details.

 

[pyeman99]

Reload the firmware just in case

 

[154600]

Reload the firmware just in case

I’m going to give that a try

 

[buddrousa]

Can you post a picture of the scanner in the thread?

 

[154600]

Can you post a picture of the scanner in the thread?

 

[tvengr]

Please attach your archive programming file so we can take a look at it. Click on Attach files and open the file.

 

[buddrousa]

Has this TRX2 ever worked on P25 Phase 2?
Does it work on Analog?
Does it work on DMR?
Does it work on NXDN?
Does the National Weather Service come in clear?
If answer is yes how long ago and what has changed.
If the answer is no then it needs to be sent and be repaired.

 

[tvengr]

Has this TRX2 ever worked on P25 Phase 2?

It seems very odd that it works on P25 Phase 1 systems but not Phase 2. That is why I would like to see the programming file. There could be programming errors in both the Savannah River and SC Public Service Auth trunked systems and that is what is causing the confusion. I always try to cover all of the bases before condemning the scanner.

 

[KevinC]

I would make sure the trunking tables are set to "Autofill".

 

[jdolina]

Since owning my TRX-2 it has been hit or miss on receiving Phase II mostly miss. Of course, whistler when I contacted them back yonder blamed it on simulcast, yet other non-simulcast radios worked just fine. I have tried all the different firmware with no different results. The best results I can get were by doing the following.


Using Pro96com to get the best signal decode possible with antenna position
Setting DSP level adjust to 71, ADC Gain to -2 and DAC Gain -7db . This is what works best for me, and I get probably 75 - 80 percent of the transmissions. That is why the TRX-2 is in use for DMR and NXDN trunk systems in the area only where it does slightly better. I did try the Phase II system after seeing this thread and things were still the same. I have not played with it much lately but if I remember most of the missed transmissions were on slot 2.