TRX-1: No sound and no sign at P25 Control Channel

Status
Not open for further replies.

HiD092

Member
Joined
Sep 22, 2021
Messages
48
Does anyone know why the TRX-1 doesn't stop at control channel P25 when scanning?

And when I try to input the control channel frequency manually in "Tune Mode", it also doesn't show any sign on the screen and no sound at all.
Only the "S" mark and signal bars appear.

Please help.
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
It would help to know your city, county, and state and which agency you are trying to monitor. We need to know that info to look up the system in the database to determine possible problems.
Well, actually i had the contnrol channel in the other scanner (uniden).
But when I tried to scan the cc with trx1, nothing happened.
Btw, I lived in Indonesia.
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
It would help to know your city, county, and state and which agency you are trying to monitor. We need to know that info to look up the system in the database to determine possible problems.
Same problem like in this thread, but still no clues to resolve it.

 

tvengr

Well Known Member
Joined
Feb 10, 2019
Messages
10,321
Location
Baltimore County, MD
Well, actually i had the contnrol channel in the other scanner (uniden).
But when I tried to scan the cc with trx1, nothing happened.
Btw, I lived in Indonesia.
Under Site Options tab in the EZ Scan Software, set Trunking Tables to Auto Fill if not done so already. System Type should be Project25.
 
Last edited:

RaleighGuy

Member
Premium Subscriber
Joined
Jul 15, 2014
Messages
14,428
Location
Raleigh, NC
Does anyone know why the TRX-1 doesn't stop at control channel P25 when scanning?

And when I try to input the control channel frequency manually in "Tune Mode", it also doesn't show any sign on the screen and no sound at all.
Only the "S" mark and signal bars appear.


I am going to take a wild guess here and say the OP is using the wrong terminology in his post.

The TRX scanners do not stop on control channels when it is in search mode, whether searching or manually imputing it in the Tune Mode. It is in the scanner's design and there is no fix for it that has been found.
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
Under Site Options tab in the EZ Scan Software, set Trunking Tables to Auto Fill if not done so already. System Type should be Project25.
I mean in this case, I still don't have any control channel frequency to input
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
I am going to take a wild guess here and say the OP is using the wrong terminology in his post.

The TRX scanners do not stop on control channels when it is in search mode, whether searching or manually imputing it in the Tune Mode. It is in the scanner's design and there is no fix for it that has been found.
Exactly. That's what I mean.
So there is no solution to this problem until now huh?
 

dhobby

Member
Premium Subscriber
Joined
Jun 8, 2016
Messages
7
Location
Hot Springs, AR
Does anyone know why the TRX-1 doesn't stop at control channel P25 when scanning?

And when I try to input the control channel frequency manually in "Tune Mode", it also doesn't show any sign on the screen and no sound at all.
Only the "S" mark and signal bars appear.

Please help.
Hi, I had a lot lot of recordings on my TRX-1... Deleted the files and working.... now..
 

RaleighGuy

Member
Premium Subscriber
Joined
Jul 15, 2014
Messages
14,428
Location
Raleigh, NC
Hi, I had a lot lot of recordings on my TRX-1... Deleted the files and working.... now..

In Search Mode your scanner stops on control channels it comes across? Haven't heard of any TRX that will and I've had mine for years.

Exactly. That's what I mean.
So there is no solution to this problem until now huh?

No, there is no fix, it is how the search feature was designed as far as we can tell. Maybe @Whistler_Support will confirm or share a fix, but we've never found one.
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
In Search Mode your scanner stops on control channels it comes across? Haven't heard of any TRX that will and I've had mine for years.



No, there is no fix, it is how the search feature was designed as far as we can tell. Maybe @Whistler_Support will confirm or share a fix, but we've never found one.

It looks like whistler support is unable to fix this. They just update bandplan collection from many countries.
Looks like they don't have IT experts to support.
 

Whistler_Support

Whistler Representative
Whistler Representative
Joined
May 7, 2020
Messages
151
Location
Bentonville, Arkansas
Tune mode can only provide Audio for frequencies containing Voice.

If you find a P25 Control Channel, please program it accordingly as a trunked system and select Auto fill to obtain the other frequencies in the trunked system.

Once entered, set a Talkgroup Wildcard and Radio ID wildcard then you can scanning this system using the scan function.
(make sure to enable the scanlist where the Trunking System has been created)
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
Tune mode can only provide Audio for frequencies containing Voice.

If you find a P25 Control Channel, please program it accordingly as a trunked system and select Auto fill to obtain the other frequencies in the trunked system.

Once entered, set a Talkgroup Wildcard and Radio ID wildcard then you can scanning this system using the scan function.
(make sure to enable the scanlist where the Trunking System has been created)
This is the real question, how to find a P25 control channel using TRX-1?
 

HiD092

Member
Joined
Sep 22, 2021
Messages
48
I think you could find it using IF output and SDR# (Sharp) or similar program. But that makes it a expensive sdr dongle which typically can be purchased for about $30us.

I know besides using trx-1, I can use uniden 396xt or 436hp, but that's not the main topic, of course.
 
Status
Not open for further replies.
Top