MotoTRBO audio on BCD996P2, but XPR7550e RX only no audio

[johndball]

I've looked for a day, maybe my searching just sucks, but I'm not finding anything to point me in the right direction.

I have a local MotoTRBO system that I pulled the frequencies for using RR. Crossed referenced it with the FCC ULS ALS, found more licensed frequencies than RR had and I tossed them into my BCD996P2. I know I'm in the right spot because my BCD is cranking out audio from the business. I think I know the color code based on the attached screenshot (in red). All in all, the BCD is working great and I'm picking up on transmissions.

When I toss these into MotoTRBO CPS 2.0 and upload to the XPR7550e, I am getting full signal strength and a flashing green LED, but no audio. I've tried repeater slot 1 and 2 as well. I have the zone set for RX only. The BCD is pumping out audio but the XPR is not. I'll admit, it's been a few years since I did MotoTRBO XPR programming so I'm rusty, but all things point to "this should work". I'm not planning on going any deeper on the 7550 unless it is something stupid simple. I'm using this radio for DMR on HAM but thought I'd give it a go on the local system to see if I could catch anything. The scanner is working just fine.

 

[tweiss3]

Sounds like RAS is in use, a Motorola radio won't allow you to hear if RAS is used.

 

[johndball]

Sounds like RAS is in use, a Motorola radio won't allow you to hear if RAS is used.

I was thinking RAS too, but wasn't sure because I can hear the audio on the scanner.
How does something like the BCD996P2 with DMR get around the RAS protection? Just to clarify, I'm not asking to get around the RAS protection, just wondering how the scanner is able to hear the transmission but the 7550e can't.

Edit: finally a search that I found on my own. Know RAS key for a protected MotoTRBO system - Can I now listen with an SDR?
Answered my own question. MOTOTRBO RAS.

 

[IAmSixNine]

The scanner ignores the status bit for the RAS identifier. So on a commercial radio if RAS is enabled then it wont pass audio with out the proper key. On the scanner it passes audio because it ignores RAS.