JIWN Update

I had a chance to gather some new frequency data for the Justice Integrated Wireless Network P-25 trunked system. This system has started to expand and is the model for more systems that will start appearing in other parts of the country.

I haven't been able to update my logs for all the system sites yet, but here is what I was able to update over the holidays:

Site 106 [T106] – Seattle South
167.2875 - CC
167.3875
167.4625
167.7125

Site 107 [T0107] – Seattle North
167.6875 - CC
167.0000
167.3375
170.9375
172.0625

Site 108 [T0108] – Unknown location
167.6125 - CC
167.2625
167.3625
168.8500
169.4125

Site 112 [T010c] – Baw Faw Peak, WA
171.6875 - CC
167.7375
169.9125
167.2625
167.4375

Site 114 [T010e] – Kalama, WA
170.6750 - CC
171.9875
168.8875

Site 115 [T010f] – Vancouver, WA
167.4625 - CC
168.8250
169.4125

Site 118 [T0112] – SeaTac Area
172.6375 - CC
170.6250

Site 119 [T0113] – Portland, OR – Mount Scott?
172.0625 - CC
170.7250
170.8375
170.9125
170.9375
172.2125
172.4125

Site 120 [T0114] – Portland, OR – Germantown Road?
168.5875 - CC
167.6625
168.9125
169.2375
171.9625
167.5125

Site 121 [T0115] – Portland, OR – Unknown Site
171.6625 - CC
169.9375

Site 122 [T0116] – Portland, OR – Unknown Site
171.6125 - CC
170.0625
172.1875

Site 123 [T0117] – Portland, OR – West Hills Site?
170.9875 - CC
167.6125
168.8500
171.3250
171.4375

Traffic on this system has been mostly encrypted, but I suspect when the interoperability features that will be linked to local public safety systems start showing up, more traffic may be in the clear.

Also, despite the availability of this system, most federal agency conventional channels continue to be used.