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PostPosted: Sat Jul 06, 2013 4:35 pm 
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Joined: Sat Mar 27, 2004 9:49 am
Posts: 546
Location: On An Airplane Somewhere...
A new P-25 trunked system is on the air in the area of the Portland International Airport. The system is apparently in support of operations at the Portland Air National Guard Base on the south side of the field.

Here are the system specifics from PRO96COM:

System ID : 00A
System Name : DOD USAF
WACN : 92195
Tower Number (Decimal): 101
Tower Number (Hex) : T0101
Tower Description : PORTLAND AIR BASE, PDX
Control Capabilities : Data,Voice,Registration
Call Sign(s) :
Timestamp : Fri Jul 05 15:12:18 2013

-Tables
#Format: Table ID,Base Freq,Spacing,Input Offset,Assumed/Confirmed,BandWidth
00,380.00000,0.00625,20.00000,"Confirmed",0.01250

-Frequencies
#Format: Channel,Usage,Frequency,Input Frequency,Hit Count
"00-0012","a",380.07500,400.07500,0
"00-0044","a",380.27500,400.27500,0
"00-0228","c",381.42500,401.42500,0
"00-0312","a",381.95000,401.95000,0
"00-0834","a",385.21250,405.21250,0

* For some reason the system is showing a 20 MHz offset for the input frequencies, but it is actually 10 MHz. I have seen this phenomenon on other 380 MHz DoD trunked systems.

As of this weekend, no radio affiliations were seen, and base operations on other, conventional 380 MHz channels appear to continue as usual. Not sure when this system is slated to become live, but it is on the air and audible throughout northwestern Portland and Vancouver.

- Chris

_________________
--
Chris Parris
Federal Wavelengths columnist
The Spectrum Monitor Magazine
chrisparris@thefedfiles.com


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