P25 system question

k5rpd · Post by **k5rpd** » Wed Feb 07, 2007 5:11 pm

I was monitoring the Waldron tower site on the AWIN P25 system ( http://www.radioreference.com/modules.p ... R&sid=3918 ) here in Arkansas and observed the following information come across the control channel using the Pro96com software:

2/6/2007 19:52
2E 00 00 13 48 16 7E 5D 6F 70 27 41
Authenticate: SysID: 013 WACN: 13481 ID: 6123376

Anyone have any idea what this is or what happened? The system ID for the AWIN system is 188 and WACN of BEE00.
1st line is date/time stamp.
2nd line is the actual packet data.
3rd line is what the Pro96com software decoded it to be.

It looks to me like a radio from another system tried to get on the AWIN system...
Any thoughts?

Thanks,
JJ Smith
K5RPD

JohnG · Post by **JohnG** » Thu Feb 15, 2007 9:45 pm

The 2E OSP is an AUTH_CMD. This OSP is used by the FNE to signal an SU to begin the SU authentication procedure. This procedure is used to determine that the SU is authentic and is not a "cloned" radio.

John