Programming P25 on a BC396

[mikeydcg2003]

I was sent over to omaha today for work, and i thought, why not program a few freqs and trunks in for something to listen to. I found a few good conventional ones such as the railway trains, etc. I did however find a digital trunk known as ORIN(Omaha Regional Interoporobilty Network). It is a P25 Standard trunk setup. Now from what i had thought i knew, P25 Standard would be a motorola system? I programmed this in as a Type 2 Standard Motorola setup. When i arrived, the scanner would not reconize the trunk. I could flip to the channels and hear what i thought was the control channel. I never did hear any conversations on any of the channels. Could someone instruct me as to what system this should be programmed under so if i head to omaha or wherever, i will know what to program it as. below is the link to the rr db page for ORIN
http://www.radioreference.com/modules.php?name=RR&sid=2361

Thanks in Advance

Mike

 

[firephotographer50]

Hey Mike. Any system that is listed as P25 needs to be programmed as a "Motorola P25" in the BCD396t, not Type 2 standard. Those are completely different system types. Hope this helps.

 

[BigJimbo]

Did you see the symbol "DAT" as your 396 was scanning? It appears this system may be a true P25 system, which would mean you would have had to set it up initially as P25, not Mot Type II.

Many systems are Mot Type II with Digital voice modulation. They typically run at 3600 baud.
On the 396, it will show ENC, LNK, then P25 when receiving. On a "true" P25 system, it will show the "DAT" symbol in that space when scanning. That means the 396 is decoding 9600 baud control channel data, which is the normal speed in which they run.

My guess is that if you went back and changed your initial setup to P25, and not Mot II, you would have received the talkgroups properly.

 

[mikeydcg2003]

Thanks for the Advice.. I'll do some more checking and see what i can do..

 

[mikeydcg2003]

Looking in my programming software, i overlooked Moto p25.. I have found it now and will reconfigure for when i get to a True p25 again.. Thanks for your help

 

[loumaag]

...It is a P25 Standard trunk setup. Now from what i had thought i knew, P25 Standard would be a motorola system? I programmed this in as a Type 2 Standard Motorola setup. ...

You fell victim to the problem that the scanner manufacturers refuse to separate Project 25 systems from Motorola in regard to manual instructions or programming. They are not related anywhere except in the minds of the engineers at Uniden & GRE.

It would appear, based on the just released version of the PSR-500 manual, GRE may have finally caught the clue bus. :roll:

 

[mikeydcg2003]

Maybe in a future software update or so, they might resolve these issues?

 

[ampulman]

Maybe in a future software update or so, they might resolve these issues?

No big deal. Better they should improve the P25 decoding (read audio).

AM