Help With Unidentified Federal System, Durham NC Area

[RaleighGuy]

Four years ago I posted about an unidentified 400 mhz P25 system, at the time it was a Phase 1 system. Not being in the area to monitor the system very often I kind of forgot about it. Today I again heard it and apparently it has been upgraded to a Phase 2 system. There is very little traffic on the system and users are able to make private calls from radio to radio. I've still not ID'd the system, but am leaning towards a second Durham VA system due to the similar NAC 841/System ID BEE00.845 with the known Durham VA system BEE00.8B9 NAC 8BO. Any help in IDing this system will be appreciated.

System Information is:
System ID : 845
WACN : BEE00
NAC : 841
Tower Number (Decimal): 1-1
Tower Number (Hex) : T0101
Control Capabilities : Voice,Registration
Flavor : Phase 2
Timestamp : Tue Jul 14 14:12:45 2020

-Tables
#Format: Table ID,Base Freq,Spacing,Input Offset,Assumed/Confirmed,BandWidth,Slots
00,851.00625,0.00625,-45.00000,Confirmed,0.01250,1
01,762.00625,0.00625,30.00000,Confirmed,0.01250,1
02,406.00000,0.01250,0.90000,Confirmed,0.01250,1
03,406.00000,0.01250,0.90000,Confirmed,0.01250,2

-Frequencies
#Format: Channel,Usage,Frequency(/Slot),Input Channel,Input Frequency(/Slot),Input Explicit(1/0),Hit Count
02-0195,c,408.43750,02-0915,417.43750,1,0
02-0211,a,408.63750,02-0931,417.63750,1,0
03-0486,vp,409.03750/0,03-1926,418.03750/0,1,0
03-0487,vp,409.03750/1,03-1927,418.03750/1,1,0

Radio IDs (RID/UID) included 2025, 3016, 4020, 4033, 4037, 4057, 4058, 4089

Original 2016 Post:

Unknown Fed trunked system with SysID 845

Found a new P25 system but haven't heard voice traffic yet. DSD+ says it's a trunking system on 408.4375 cc 408.6375 scc 408.8375 409.0375 Base is 406, offset +0.9 (but also saw - 45 and +30 with 6.25 spacing), spacing 12.5, NAC 841 Anyone have any ideas who it might be? Have the DSD+...

forums.radioreference.com

 

[ChrisP]

I wrote about this system in the July, 2019 issue of The Spectrum Monitor magazine, and received information that is belongs to the National Institute of Environmental Health, part of the National Institutes of Health (NIH).

NIEHS Home page

National Institute of Environmental Health Sciences | The mission of NIEHS is to research how the environment affects biological systems across the lifespan and to translate this knowledge to reduce disease and promote human health.

www.niehs.nih.gov

- Chris

 

[RaleighGuy]

I wrote about this system in the July, 2019 issue of The Spectrum Monitor magazine, and received information that is belongs to the National Institute of Environmental Health, part of the National Institutes of Health (NIH).

NIEHS Home page

National Institute of Environmental Health Sciences | The mission of NIEHS is to research how the environment affects biological systems across the lifespan and to translate this knowledge to reduce disease and promote human health.

www.niehs.nih.gov

- Chris

Thank you

 

[reconrider8]

I wrote about this system in the July, 2019 issue of The Spectrum Monitor magazine, and received information that is belongs to the National Institute of Environmental Health, part of the National Institutes of Health (NIH).

NIEHS Home page

National Institute of Environmental Health Sciences | The mission of NIEHS is to research how the environment affects biological systems across the lifespan and to translate this knowledge to reduce disease and promote human health.

www.niehs.nih.gov

- Chris

Got a link to the article bud?

 

[RaleighGuy]

Got a link to the article bud?

It's a great article about that system and several other smaller fed agencies. Individual articles are not posted online, but single issues are available for $3 from The Spectrum Monitor - Powered by Network Solutions.

By the way, system has been added to the database.

 

[Wilrobnson]

https://www.interceptradio.com/bbs/viewtopic.php?f=22&t=9142

4th-6th posts.

 

[spacellamaman]

Four years ago I posted about an unidentified 400 mhz P25 system, at the time it was a Phase 1 system. Not being in the area to monitor the system very often I kind of forgot about it. Today I again heard it and apparently it has been upgraded to a Phase 2 system. There is very little traffic on the system and users are able to make private calls from radio to radio. I've still not ID'd the system, but am leaning towards a second Durham VA system due to the similar NAC 841/System ID BEE00.845 with the known Durham VA system BEE00.8B9 NAC 8BO. Any help in IDing this system will be appreciated.

System Information is:
System ID : 845
WACN : BEE00
NAC : 841
Tower Number (Decimal): 1-1
Tower Number (Hex) : T0101
Control Capabilities : Voice,Registration
Flavor : Phase 2
Timestamp : Tue Jul 14 14:12:45 2020

-Tables
#Format: Table ID,Base Freq,Spacing,Input Offset,Assumed/Confirmed,BandWidth,Slots
00,851.00625,0.00625,-45.00000,Confirmed,0.01250,1
01,762.00625,0.00625,30.00000,Confirmed,0.01250,1
02,406.00000,0.01250,0.90000,Confirmed,0.01250,1
03,406.00000,0.01250,0.90000,Confirmed,0.01250,2

-Frequencies
#Format: Channel,Usage,Frequency(/Slot),Input Channel,Input Frequency(/Slot),Input Explicit(1/0),Hit Count
02-0195,c,408.43750,02-0915,417.43750,1,0
02-0211,a,408.63750,02-0931,417.63750,1,0
03-0486,vp,409.03750/0,03-1926,418.03750/0,1,0
03-0487,vp,409.03750/1,03-1927,418.03750/1,1,0

Radio IDs (RID/UID) included 2025, 3016, 4020, 4033, 4037, 4057, 4058, 4089

Original 2016 Post:

Unknown Fed trunked system with SysID 845

Found a new P25 system but haven't heard voice traffic yet. DSD+ says it's a trunking system on 408.4375 cc 408.6375 scc 408.8375 409.0375 Base is 406, offset +0.9 (but also saw - 45 and +30 with 6.25 spacing), spacing 12.5, NAC 841 Anyone have any ideas who it might be? Have the DSD+...

forums.radioreference.com

i can't believe that was four years ago.....that makes me feel...so....old

 

[spacellamaman]

https://www.interceptradio.com/bbs/viewtopic.php?f=22&t=9142

4th-6th posts.

just looked through the thread and saw:

406.550 ($315) ONLY ENC, RIDS 1XXX,
163.1375 ($293) USCG?,

anyone nail those down? totally new to me. do they appear limited to KRDU actual, or just the RDU area?

 

[ecps92]

163.1375 $293 is 100% the USCG CG/NET-113

just looked through the thread and saw:

406.550 ($315) ONLY ENC, RIDS 1XXX,
163.1375 ($293) USCG?,

anyone nail those down? totally new to me. do they appear limited to KRDU actual, or just the RDU area?