APX APX NAS: I'm at my Wits' End

[Will001]

Background: I have programmed many XTS2500/5K radios for NAS successfully, following all the necessary guides and triple and quadruple checking everything before programming, and have never had one try to affiliate with any system I have programmed for NAS. However, I recently purchased an APX6000, the first APX I have ever tried to program for NAS. I first converted my "main" codeplug from my XTS5000 to XML and imported it to APX CPS, then after making small adjustments to ensure the codeplug matched by XTS5K exactly, I threw it in the APX. Immediately, I noticed issues:

1. The radio tried to affiliate with TX Inhibit disabled
2. Even with TXIN enabled so the radio didn't try to affiliate, the APX was either missing traffic that the XTS was receiving or it was landing on the busy TG up to 10 seconds after the XTS did

Of course, I stopped trying to listen, hooked the APX to a dummy load, and went back to the software to see what I had done wrong. I have spent hours in the software looking for any stray checkboxes left checked/unchecked. I have Motorola Prop Features, Validate NAC against System ID, and POP25 unchecked. TG/AG is Disabled. All the scan lists are Multi-system Talkgroup or Intelligent Priority. Any and all talkgroups are programmed for channels 17 and up. I then took a blank codeplug and programmed the simplest NAS setup I could, just 1 channel with a scan list containing 8 TG's, and followed the relevant guides EXACTLY, and after programming the radio (leaving it on the dummy load just in case), the APX STILL tried to affiliate. I am willing to send my codeplug (either the simplified one or my "main" one) to anybody that can check my work to see where I screwed up. The person I bought this radio from said that it had been tuned within the last month with an AeroFlex, so if that's true, my guess is it's not a tuning issue, but rather a programming issue? Any and all help is much appreciated.

 

[prcguy]

Maybe get a Harris?

 

[KevinC]

Maybe get a Harris?

I agree and send that 6000 my way as I've been doing NAS on APX for years (15 now?) with zero issues.

 

[K2NEC]

I'll give you a dollar more than whatever Kevin will pay...

 

[KD9RTX]

*gets the popcorn*

 

[chrismol1]

What is your system coverage type set to? How far are you from the site you're trying to receive as programmed and do you have other controls channels in the list as other Sites/RFSS? When a radio in NAS attempts to affiliate, its usually a couple of things that the radio sees as not congruent as programmed and attempts to "resolve" the issues by communicating with the system. There also might be a data feature enabled on the APX that, isn't/doesn't exist, enabled in the XTS.

 

[Will001]

Maybe get a Harris?

Probably will if I can't get this one figured out, or maybe a Bendix King.

What is your system coverage type set to? How far are you from the site you're trying to receive as programmed and do you have other controls channels in the list as other Sites/RFSS? When a radio in NAS attempts to affiliate, its usually a couple of things that the radio sees as not congruent as programmed and attempts to "resolve" the issues by communicating with the system. There also might be a data feature enabled on the APX that, isn't/doesn't exist, enabled in the XTS.

System coverage is set to "disabled." I am trying to monitor a simulcast site on a Phase II system (PII-capable, no TDMA talkgroups though).

 

[KevinC]

Probably will if I can't get this one figured out, or maybe a Bendix King.


System coverage is set to "disabled." I am trying to monitor a simulcast site on a Phase II system (PII-capable, no TDMA talkgroups though).

Set the RFSS and site number appropriately in the codeplug and see how it acts. RFSS 1, Site 1 is probably wrong.

 

[chrismol1]

Probably will if I can't get this one figured out, or maybe a Bendix King.


System coverage is set to "disabled." I am trying to monitor a simulcast site on a Phase II system (PII-capable, no TDMA talkgroups though).

Yup, exactly what I thought. "Disabled". Sent you a message.

 

[Will001]

Set the RFSS and site number appropriately in the codeplug and see how it acts. RFSS 1, Site 1 is probably wrong.

Just changed it, looks like this may have fixed my issue, it also seems to be landing on active TG's much quicker now. Thanks for the help

 

[chrismol1]

Set the RFSS and site number appropriately in the codeplug and see how it acts. RFSS 1, Site 1 is probably wrong.

Looking at the OPs codeplug in question, it's set to Disabled and that's exactly whats going on.

OP: You need to set the correct Site ID/RFSS ID for the individual site you have programmed if the coverage type is set to Disabled or else this is what happens. You also have data profiles enabled that should be disabled for NAS

 

[KevinC]

Just changed it, looks like this may have fixed my issue, it also seems to be landing on active TG's much quicker now. Thanks for the help

You're very welcome.

 

[sheintz]

I’m having the same issue I have a xg-100p I programmed no issues my apx-8000 it will not pick up the trunking if someone could help me I’ll send you the code plug

 

[Asunakiyori]

I’m having the same issue I have a xg-100p I programmed no issues my apx-8000 it will not pick up the trunking if someone could help me I’ll send you the code plug

I'm not gonna pretend to be a master fixing NAS but I'd be willing to take a peek at an APX 8 CP. what CPS was it last programmed with? R32?