APX Trunking Can't RX or TX audio

[navymrh90]

I've previously been monitoring a P25 trunked network (NSW Government Radio Network Trunking System, NSW Statewide and ACT, Multi-State - Scanner Frequencies) in my state using the non-affiliate scan method. I.e. I created the actual trunked channels and placed them in a scan list linked to a conventional channel. This has been working fine without any issues. The details for the trunked system were copied from the codeplug of a radio authorised for the network. The radio is an APX8000.

I've recently been given a unit ID to use on the network so it can legitimately affiliate. After changing the ID in CPS I went to test the actual trunked channel. It seems to affiliate with the network as I can see the signal strength indicator and shows a good RSSI reading. However, the radio does not RX (doesn't unmute or show the receiving radio ID), and when I try to TX it just gives me an invalid tone. Transmit mode is set to unrestricted in CPS.

Can't seem to figure out why this is the case, especially the fact that I can RX fine when used on a scan list for non-affiliate. I have searched long and hard over the internet however I couldn't find anything. Hoping someone here can shed some light. Let me know if you require any further details. Thanks!

 

[crazyboy]

Talk to the system admin. If you have a legitimate ID on the system this should not be a problem. There are multiple things that could be wrong, both on the subscriber and system side. These settings if wrong could negatively effect the system, so it is not the place for a guessing game.

 

[Thunderknight]

It sounds like either the radio ID or the TG selected is wrong or invalid. Make sure you are using the correct decimal or hex version. Some values are obvious (eg 26b must be hex) but some aren’t obvious and if you have it backwards...

 

[buddrousa]

As stated above talk to the System Administrator a system ID can be restricted to TOWER SITES and or TALKGROUPS it all depends on how it is setup in the controller.

 

[ChrisE_STB]

Did you actually reprogram the radio or is it still programmed as NAS and you just added the ID?

 

[hitechRadio]

If true, I am dumb founded that an admin would give an ID, with knowing somehow you acquired a system key also. And the admin allowing someone to program the radio with little knowledge of how to provision a radio on a system.

Honestly, I would have not come here asking these questions.

Wonder if the persons boss knows about this?

Not bashing you OP, as far as you know it's not a big deal. But in reality, normally this would get most fired at minimum a reprimand!

Maybe Australia just does it different down under.

As far as your question, there is absolutey no way to know the issue with out looking at the CP. And even then maybe not, with out access to NM. Contact your system admin as other have suggested.

 

[ChrisE_STB]

If true, I am dumb founded that an admin would give an ID, with knowing somehow you acquired a system key also. And the admin allowing someone to program the radio with little knowledge of how to provision a radio on a system.

Honestly, I would have not come here asking these questions.

Wonder if the persons boss knows about this?

Not bashing you OP, as far as you know it's not a big deal. But in reality, normally this would get most fired at minimum a reprimand!

Maybe Australia just does it different down under.

As far as your question, there is absolutey no way to know the issue with out looking at the CP. And even then maybe not, with out access to NM. Contact your system admin as other have suggested.

Dont think he ever said an Admin gave him the ID. Maybe the ID was taken out of the codeplug he got the information out of.

 

[hitechRadio]

Dont think he ever said an Admin gave him the ID. Maybe the ID was taken out of the codeplug he got the information out of.

"I've recently been given a unit ID to use on the network so it can legitimately affiliate"

You right...... I just assumed an admin, being that is the only person that can create an ID.

 

[buddrousa]

Did you give the admin your ESN of your radio?
Did the Admin give you a SYSTEM KEY if so WHAT TALKGROUPS are associated with your SYSTEM KEY?

 

[MTS2000des]

Dont think he ever said an Admin gave him the ID. Maybe the ID was taken out of the codeplug he got the information out of.

My money says cloned a radio. No legitimate system manager or radio technician would just "give" an ID to someone with zero experience, training or documentation on file authorizing this, at least not around these parts. Smells like someone playing a dangerous game.

 

[ChrisE_STB]

My money says cloned a radio. No legitimate system manager or radio technician would just "give" an ID to someone with zero experience, training or documentation on file authorizing this, at least not around these parts. Smells like someone playing a dangerous game.

 

[navymrh90]

Thanks for the replies, everyone! Thought I'd give you all an update on this. I had a chat with one of the system tech guys and was able to get the issue corrected. Turns out it was an issue with the unit ID number.

And no, this is not a cloned radio for those wondering. The unit ID number I had was also given to me by a system tech guy.