Linked FBI Multi-state Repeaters ???

[Gilligan]

I have read somewhere on the forums that 168.350 is a linked FBI repeater that, at minimum, can be heard in Oklahoma City but the operations are ongoing somehwere in Texas, like DFW or Houston.

This morning, on 168.275, PL 167.9, I monitored the following radio traffic from my location in Oklahoma City:

"Little Rock, Hot Springs, radio check..."

I would venture a guess to say that 168.275 is part of a linked FBI repeater network w/ a local OKC repeater being on that frequency.

Any comments about either 168.275 or 168.350 being used for FBI in Oklahoma, Texas, or Arkansas can be posted in this thread for discussion.

 

[Stavro35]

I've heard U.S customs activity from one city to another when I lived in Georgia. I am guessing any agency can community with each other over fairly long distances if they just link up everything.

 

[Gilligan]

I know that Customs links their systems together by network lines, so that they can talk to their central command. But I've never heard of that with FBI networks and this seems like a regional thing.

 

[signal500]

Linked Repeaters

When I lived in MO, the FBI in Springfield was linked with Kansas City via land line on 167.6875 PL 167.9 analog . I believe the KC regional office can link any number of cities together including Branson, Joplin and Jefferson City. I have heard a FBI surveillance from north Texas on 167.6875, but it was most likely skip conditions.

The DEA in Springfield, MO is linked to St. Louis via land line on 418.900 PL 156.7 analog.

All links that I have heard have been confined to one state.

Signal500

 

[spiritwolfpr]

Hello Friends:

I think 168.350Mhz could be nation Wide?? I have heard F.B.I. comms
a few times in the clear here in San Juan,Puerto Rico.

 

[ChrisP]

168.3500 MHz is a nationwide federal common channel. It is not assigned to any one agency, but it could be used by the FBI as a federal interoperability channel. In the new scheme of things, this frequency is supposed to be an input to 163.1000 MHz repeaters, but I still find it used as simplex or even a repeater output.

- Chris

 

[Gilligan]

It is definately a P25 repeater output here in OKC. I'm interested in hearing more information on these linked systems and such.

 

[Gilligan]

I have read somewhere on the forums that 168.350 is a linked FBI repeater that, at minimum, can be heard in Oklahoma City but the operations are ongoing somehwere in Texas, like DFW or Houston.

I realize that I was confusing 168.350 w/ a different freq mentioned in this post of 163.650, and it was P25, not DES.

 

[ff-medic]

41.37 - Common User. Frequencies 163.100 and 168.350 MHz are available
for use on a Region-wide basis to all Regions. Use these frequencies for
low priority traffic of a secondary nature. Interference protection is
not afforded from other users. Do not use these frequencies for high
priority traffic or traffic pertaining to life or property threatening
situations. Limit power to a maximum of 30 watts. Limit use to mobile
and portable operations only; prohibit aircraft, base stations (including
transportable), and repeaters. Do not make these frequencies a part of
any cooperative arrangements


http://www.fs.fed.us/im/directives/fsh/6609.14/6609.14_40







Frequencies Call Sign Comments
164.35 MHz KOD 904 Grand Junction, Monticello,
164.225 KAJ 986 Grand Junction Site, Emergency and Security Guards
163.100 MHz KHA 824 Nation-wide Frequency (5-watt) for use at
40 different Remediation sites. DPL 162.
Grand Junction, Uranium Leasing, Monticello,
and Shiprock

168.350 MHz KHA 825 Nation-wide Frequency (5-watt) for use at
40 different Remediation sites. DPL 172
Grand Junction, Uranium Leasing, Monticello,
and Shiprock

171.200 MHz KDC 564 RAP team
171.950 MHz KHA 871 RAP team


http://74.125.95.104/search?q=cache...+-+nationwide+common&hl=en&ct=clnk&cd=3&gl=us



FF-Medic !!!

 

[ChrisP]

I realize that I was confusing 168.350 w/ a different freq mentioned in this post of 163.650, and it was P25, not DES.

Gilligan, I think you are referring to what may be a DHS ICE network. There have been reports from several areas that ICE (Immigrations & Custom Enforcement) are establishing some wide-area P-25 VHF repeater networks. I have monitored some in the east and they tend to be used for surveillance operations, not routine dispatch functions. Why they have a number of repeaters linked is unknown.

163.6500 MHz is one of the legacy INS DoJ channels that ICE continues to use around the country, along with some new allocations.

I'm trying to come up with some more firm information on these nets for a future Fed Files column.

- Chris

 

[ff-medic]

Quote = These frequencies are to be available for assignment to all Federal Government agencies to satisfy intermittent law enforcement and public safety incident response requirements. Non-Government entities may use these frequencies only in cooperation with agencies of the Federal Government.



1. Frequencies 167.0875 MHz and 414.0375 MHz are designated as National Calling Channels for initial contact and will be identified in the radio as indicated in paragraph 2 below. Initial contact communications will be established using analog FM emission (11KF3E). The agency in control of the incident will assign specific operational channels as required for incident support operations.

2. The interoperability frequencies will be identified in mobile and portable radios as follows with Continuous Tone-Controlled Squelch Systems (CTCSS) frequency 167.9 Hz and/or Network Access Code (NAC) $68F:


http://www.apco911.org/frequency/downloads/IracDocument31061-2.htm



Someone should forward this to the upper echelon, so it could be added with/to Wiki.


FF-Medic !!!

 

[nd5y]

Someone should forward this to the upper echelon, so it could be added with/to Wiki.

They are already in the wiki on this page
http://wiki.radioreference.com/index.php/Common_Frequencies#Multiple_Agencies.2FInteroperability
under Multiple Agencies/Interoperability