DMAFB Trunked System Update

Just had a chance to monitor some changes at Davis Monthan Air Force Base in Tucson, Arizona. They have had a UHF Motorola trunked system there for a number of years, but now have started a separate P-25 UHF system as well.

The new system is using a System ID of 3F6 and the site at the base shows as Site 102. It is not showing as being networked with any other sites yet.

The frequencies are as follows:

409.2750
409.4500
409.5625
410.5625

All frequencies associated with this system were displaying a NAC of 3F0. These 4 frequencies were taken from the original DMAFB UHF system channels. It's unconfirmed, but this may be the start of converting the entire base to a single P-25 trunked system.

The system now has some limited users, and at least one talk group was being heard over both systems. But most of the activity is still on the original base trunked system:

http://www.radioreference.com/apps/db/?sid=3711

Nellis AFB P-25 System Updates

Back in May, I posted some initial reports of an update to the UHF trunked system used by Nellis AFB in Las Vegas. You can find that post here.

I'm now in Las Vegas and have started monitoring and mapping this new system. The first item of note is that this is a separate, true P-25 trunked system and not part of the NNSA Motorola trunked system that Nellis was a subscriber to in the past. Some of the early information had listed this new System ID as "000F", but it is "00F", which indicates that it is a P-25 system (P-25 systems use a 3-digit system ID as opposed to a 4 digit ID used by Motorola Type II systems).

Here are the frequencies in use at Nellis now:

406.5000
406.7875
407.1875
407.3000
407.5000
407.8625
408.1500
408.9625
409.1125
409.5625
409.7125
410.6500

With the exception of 407.1875 and 407.5000, these frequencies were at one time all part of the NNSA Motorola trunked system that serves the entire southern Nevada area. This P-25 system appears to be standalone and is not networked to any other sites.

The original NNSA Site 10 that covered Nellis is now on the air on 408.3875 MHz, and appears to still be in use by a few users.

FEMA Mobile Units

Saw this web page on a recent list posting and thought it was interesting;

http://www.core77.com/blog/transportation/a_tour_of_femas_fleet_19969.asp

It's a nice look at FEMA's Mobile Emergency Response Support (MERS) command units and the various versions and sizes that they come in.

UPDATE: Fixed the messed up link I had earlier.

CBP Announce New MEA

U.S. Customs and Border Protection announced today its new King Air 350, twin engine Multi-role Enforcement Aircraft (MEA), providing the Department of Homeland Security unmatched capabilities to patrol the skies along the nation’s land and maritime borders.

Full story here:

http://www.cbp.gov/xp/cgov/newsroom/news_releases/national/06102011.xml

Another 414.5625 Report

I have monitored some encrypted P-25 transmissions in the Houston area on 414.5625 MHz with a NAC of N168. Others have also heard it in use in the Charlotte, NC area. I've recently received a report of encrypted traffic on this same frequency in the Boston area, however reports are that the NAC was showing N169. It's possible that whatever agency this is has multiple NACs for different repeaters in the area.

Still no indication as to what agency this is...

Royals Visiting California

Members of the British Royal Family will visiting the Southern California area this coming week, and it could make for some interesting monitoring.

The Duke and Duchess of Cambridge will arrive in Los Angeles on July 8. Their schedule calls for several days of travel and appointments around LA and other cities;
http://www.kcoy.com/story/14924375/schedule-released-for-royal-visit-to-california

Both Secret Service and Department of State Bureau of Diplomatic Security have possible involvement in security operations for the Royal visit, but media reports have mentioned the DoS as being the agency for this trip.

If scanning the visit, be sure and keep an ear on local and CHP channels for activity, and search the UHF federal band (406-420 MHz) for State Department activity. And don't forget there will most likely be some British Royal security presence as well. The last time I ran into British VIP security in the US they were using some 160 MHz frequencies.

For a list of Secret Service channels, you can check my previous post,
http://mt-fedfiles.blogspot.com/2008/02/secret-service-frequency-list.html

Here is a quick list of possible Department of State Bureau of Diplomatic Security frequencies. They should be all P-25 digital and utilize a NAC of either N293 or N0F0. Be sure and let me know what you hear active:

406.3750

407.2000

407.5000

407.6000

407.8625

408.1000

408.4000

408.6000

409.1500

409.5250

409.6000

409.6250

409.7000

411.0750

411.1500

411.4250

412.0000

412.2875

415.9000

416.2000

416.2250

417.6000

417.8500

418.0500

418.0750

418.4500

418.5250

418.5750

419.3000

NYC Updates on RR

Some additional, anonymous federal frequencies have been added to the New York City frequency database on Radio Reference:

http://www.radioreference.com/apps/db/?aid=3378

Sifting through the updates, I spotted a couple of interesting items. First, if the contributor is accurate, several VHF P-25 channels that I have caught in the past using a NAC of 864 are identified as being the US Marshals Service, New York. They have been active, but due to encryption, the identity was unknown. Also unknown if this is a NAC used by the USMS nationwide.

Secondly, there are 9 VHF channels listed as being "Federal Interoperability" frequencies. I have noted one or two of these frequencies active during the weekly tests, but some of these are previously unknowns, or used by other agencies. Keep an ear on these and let me know if they are active;

164.4750, N653 (Also used by the National Parks Service in New Jersey)
166.5375, N653* (See Update below)
166.7500, N653
167.3500, N653
167.7875, N653 FI/O 1 (Weekly interoperability roll call tests heard here)
168.6625, N653
171.1125, N653
171.1750, N653 FI/O 2 (Heard during New Years Eve in Times Square events)
172.2875, N653

The frequency of 414.7500 MHz, 82.5pl was also utilized for interoperability tests in the past.

UPDATE!
It slipped past me initially, but I was reminded that the frequency of 166.5375 MHz is actually the input to the BATFE nationwide repeater of 165.2875 MHz. The BATFE uses a NAC of 650 on the repeater output, but uses various NAC's from 650-65A on the inputs. I suspect that they are using 166.5375 MHz, NAC 653 as the input to the BATFE repeater in the area, and the listener assumed that the NAC of 653 meant it was part of the Federal Interop channels.

Also, the inputs for the two known federal interop repeaters are not among the channels that were posted on RR. The input to the 167.7875 MHz repeater is 164.7375 MHz, and the input to the 171.1750 MHz repeater is 162.2875 MHz.

EPA Flys Over Dallas

Apparently in preparation for the celebrations of the Dallas Mavericks NBA Championship, the Environmental Protection Agency (EPA) will be doing low-level flights over the downtown Dallas, Texas area;

http://today.msnbc.msn.com/id/43404526/ns/local_news-dallas_fort_worth_tx/t/dont-be-alarmed-low-level-flyovers/

The flights are for sampling air and other environmental readings in order to detect anything unusual that might be released, either intentionally or accidentally.

The next Fed Files column will feature a profile of EPA radio channels. I have not received any information on what the EPA flights in Dallas might be using.

TSA Conducts Multi-State Exercise

If you think the TSA only functions at your local airport, think again:

http://www.mariettatimes.com/page/content.detail/id/536701/TSA-conducting-security-exercise-.html?nav=5002

http://wvgazette.com/News/201006160894

As of Wednesday, June 15th, eports are that this was a multi-state exercise involving the VIPR (Visible Intermodal Prevention and Response) teams. The exercise involved inspections of power and chemical plants, rail terminals and shipping terminals, lock and dam complexes and natural gas pipelines. The exercise also involved local and state agencies as well.

DEA Changes in Dallas

Listener reports from the Dallas/Ft. Worth Metroplex seem to indicate that the DEA is starting to use some of it's new P-25 UHF frequency assignments there.

After many reports from the Houston area and other Gulf regions of the new UHF frequencies, reports are that 413.9750 MHz, NAC156 is in use around DFW. The original UHF channels are also still in use in analog mode as well.

For a complete listing of what's been found on the new UHF channels so far, check out this previous blog post:
http://mt-fedfiles.blogspot.com/2011/02/more-new-dea-uhf-p-25.html

POTUS Visit to Joplin, MO

After the terrible devastation of the tornadoes in Joplin, Missouri, it appears that a presidential visit is on tap for Sunday, May 29th. A TFR has been issued for the area:

http://tfr.faa.gov/save_pages/detail_1_5046.html

If anyone is in the area and can provide any details of emergency communications in the Joplin region following the disaster, please pass them along to us at the Fed Files!

Las Vegas NNSA TRS Updates?

I am seeing posts over on Radio Reference that there may be changes afoot for the Las Vegas area UHF trunked system operated by the National Nuclear Security Administration (NNSA). Until recently, the NNSA operated the wide-area UHF trunked system that was utilized by Nellis AFB as a subscriber agency.

Now reports are that a new UHF trunked system has come on the air, using the System ID of 00F, NAC of 00F. Site 1 is reported using these frequencies:

406.5000
406.7875 CC
407.1875
407.3000
407.5000
407.8625
408.1500
408.9625
409.1125
409.5625
409.7125
410.6500

Some replies indicate that this new system is a separate system for military use only and that Nellis will no longer be a subscriber to the NNSA system,

If anyone in the Las Vegas area can keep me posted on this change, please send them along to The Fed Files.

UPDATE:
I took a look at the frequencies that have been posted as part of this new "000F" trunked system and see that most of them were part of the NNSA trunked system site 10, that was assumed to be located and service Nellis Air Force Base. 410.6500 MHz, was logged with some activity in Las Vegas a while back, but was not part of the NNSA system as far as I could tell.

So I'm wondering if Site 10 of the NNSA system is still on the air on any frequencies? They might have migrated the Nellis site off to it's own system, since it was probably the busiest site in the NNSA system.

There was a post on Radio Reference that indicated this was a move towards providing common trunked systems for Nellis AFB, NAS Fallon and US Navy carrier operations. Not sure if this makes any sense, but I have no information on this change as being part of any larger Navy system.

NE Florida USCG

I'm in the Jacksonville, FL area for a while and caught some Coast Guard traffic on both VHF and UHF channels recently.

162.3250 MHz, N293 NET111 - SECTOR JACKSONVILLE with various CG assets. SECTOR in the clear, but field units always encrypted.

412.9750 MHz, N293 NET409 - SECTOR JACKSONVILLE with what seemed to be CG helicopters, usually CG6xxx numbers. Again, SECTOR JAX in the clear with others secure. The NET number was confirmed by the SECTOR JAX radio operator, and also confirms another rumor that the CG UHF channels are being used primarily by airborne assets of the Coast Guard.

TSA - All Frequency Updates Here!

Since I featured a list of TSA frequencies heard at various airports in the March 2011 Fed Files, I decided to post the list here and update it with frequencies that have been sent to me.

I discovered I had several TSA related lists going on the bog, so from now on, this will be the most up to date.

All TSA Updates will be updated to this blog post.

If you have any additional TSA channels you have found active, send them along.

When searching for TSA activity, always assume that the TSA at your local airports will have some of these four frequencies in use:
166.4625 MHz
169.3000 MHz
172.1500 MHz
172.9000 MHz

In addition, here are some of the "secondary" frequencies that have been identified as TSA at various airports:
166.2875  MHz
166.7875  MHz
168.0875  MHz
168.8375  MHz
168.9625  MHz
169.1625  MHz

Here are additional channels that have been identified at various airports as being TSA operations. If the channel is designated with a CTCSS tone, it is an analog channel using voice-inversion scrambling. P-25 channels are noted with the appropriate NAC. The analog channels are usually the security checkpoint screeners using Icom F-50v radios. The additional P-25 channels are usually the operators of the full-body scanners communicating with the checkpoints. The operators of these devices are located in a separate area away from the security checkpoints.

Asheville, NC (AVL)
172.9000, N001

Atlanta, GA (ATL)
172.9000, N001

Bloomington, IN (BMI)
172.9000, N001

Boston, MA (BOS)

163.3125, 136.5 PL

166.2875, N001

166.4625, 103.5 PL

168.0875, N003

168.9625, N001

169.1625, N001

169.1625, N003

171.7625, 146.2 PL

172.1500, 103.5 PL

172.1500, 123.0 PL

Chicago, IL O’Hare (ORD)

165.0750, 123.0 PL
165.0750, 131.8 PL

166.4625, 103.5 PL
166.2875, N004
168.9625, N001

169.1625, 123.0 PL

169.1625, N001

169.3000, 136.5 PL

172.1500, 103.5 PL

172.1500, 123.0 PL
172.1500, 136.5 PL
172.9000, 136.5 PL

Cincinnati, OH (CVG)
166.2875, N003 - Scanner operators
169.1625, N003 - Scanner operators
172.9000, N001

Dallas / Ft. Worth, TX (DFW)

168.0875, N004

169.9125, 123.0 PL – TSA Terminal E

170.3375, N001 – TSA “Coordination Center”

170.9375, N004

173.7750, N004

Denver, CO (DEN)

163.6250, 151.4 PL – Behavior Detection Officers using ICE repeater at DEN airport

166.4625, N001 – Scanner operators

172.1500, 123.0 PL

172.1500, 131.8 PL

172.1500, 136.5 PL

Des Moines, IA (DSM)
172.9000, N001 - repeater

Ft. Meyers, FL (RSW)
169.3000, N001
169.3000, 123.0 PL - Checkpoint C
172.9000. N001

El Paso, TX (ELP)
166.2875, N002 - Backscatter X-ray operators
172.1500, N001

Gulfport/Biloxi, MS (GPT)

172.9000, 162.2 PL

Houston, TX Hobby (HOU)

166.2875, N003

169.1625, N001

Houston, TX Bush (IAH)

169.3000, 123.0 PL

Indianapolis, IN (IND)

169.3000, 136.5 PL

172.1500, 146.2 PL

172.9000, 151.4 PL

Jacksonville, FL (JAX)

169.3000, N001

172.1500, 146.2 PL

172.9000, 162.2 PL

Las Vegas, NV (LAS)

166.2875, N002

166.4625, N001

168.0875, N002

168.9625, N001

168.9625, N002

Los Angeles, CA (LAX)

166.7875, 123.0 PL – Terminal 3

168.9625, N001

168.9625, N002 - Scanner operators

169.1625, N001

172.1500, 131.8 PL – Terminal 7

Nashville, TN (BNA)

168.0875, 123.0 PL

172.9000. N001

Philadelphia, PA (PHI)

168.0875, N002 - B Concourse scanner operators

168.8375, N002 - C Concourse scanner operators
171.7625, 131.8 PL - B & C Checkpoints

Phoenix, AZ (PHX)
168.0875, N003
170.1625, N001 - Terminal A Backscatter X-ray operators

Portland, OR (PDX)

169.3000, 146.2 PL – Checkpoint D-E

172.1500, 123.0 PL – Checkpoint A-B-C

(Also using talk groups on the IWN trunked system)

Salt Lake City, UT (SLC)

172.1500, 123.0 PL

172.1500, N001

San Francisco, CA (SFO)

162.2750, 131.8 PL

172.9000, 123.0 PL

172.9000, N001 - Wide area repeater serving San Francisco and Oakland airports

San Antonio, TX (SAT)
172.9000, N001
 
Santa Anna, CA (SNA)
172.1500, 123.0 PL
172.1500, 131.8 PL
172.9000, N001
172.9000, 146.2 PL
172.9000, 151.4 PL


 St. Louis, MO (STL)

164.7875, 131.8 PL - A Checkpoint
169.1625, 123.0 PL

172.1500, N001
172.1500, N004

172.1500, 123.0 PL

Seattle, WA (SEA)

168.6125, N001 - Behavior Detection Officers
172.1500

Tampa, FL (TPA)

166.2875, N001 
168.0875, N004
169.1625, N001
169.3000, N009
169.3000, 123.0 PL
169.3000, 131.8 PL
169.3000, 136.5 PL - Terminal C
172.1500, N001
172.1500, N002
172.1500, N003
172.1500, N004

172.1500, 123.0 PL - Terminal F
172.1500, 131.8 PL - Terminal E
172.1500, 136.5 PL
172.9000, N001 - New wide area repeater
172.9000, N002
172.9000, 151.4 PL - Terminal A
172.9000, 162.2 PL

Tucson, AZ (TUS)
166.4625, N001
169.3000, 123.0 PL


Washington, DC Reagan National Airport (DCA)

172.1500, 136.5 PL
172.9000, N001
172.9000, N013

TSA to TRBO?

I recently received a report of someone hearing what sounded like MOTO TRBO digital traffic on 172.9000 MHz in the Southeast Florida area. This frequency is one of the primary TSA channels used at airports across the country.

It would be strange for the TSA to move to TRBO digital radios, as they are part of the Department of Homeland Security, which is committed to utilizing APCO P-25 digital modes for federal interoperability and have been using P-25 digital radios since they came into existence. Plus the TSA has recently tested the addition of OTAR (over-The-Air Re-keying) of the encryption keys on their P-25 radio systems.

However, since the TSA also decided a few years ago to start equipping security checkpoint screeners with Icom F-50V radio with analog voice-inversion, I guess anything is possible.

Has anyone else caught what might be TRBO digital on any TSA channels? Looking for updates...

FEMA Deploys to Texas Wildfires? -UPDATE

In a rare move, FEMA has declared the Texas wildfires a "Major Disaster" and deployed a mobile command post to the Mineral Wells, Texas area.

Monitors report that the FEMA CP is probably one of the MERS Teams vehicles. They have spotted a mobile truck with two pneumatic masts that support communications antennas. No mention was made in the reports I saw of any satellite dishes, but most if not all of the FEMA mobile units carry satellite dishes.

Only frequencies heard so far that might be connected to the FEMA deployment were 163.1000 MHz and 866.0125 MHz. More as reports come in...

UPDATE - It appears that the original source now says this may not be FEMA's mobile command post operating on location in Texas, despite that fact that Texas has requested FEMA assistance in the fires:

http://texas.onpolitix.com/news/44593/femas-major-disaster-declaration-rare-for-texas-fires

The mobile units spotted in the Mineral Wells area has been described as not looking like the FEMA MERS vehicles I mentioned above. However, reports continue to indicate plenty of state and federal frequencies are in use in the firefighting efforts. You can follow the updates at this link on Radio Reference:

http://forums.radioreference.com/texas-incidents-breaking-news/141626-n-texas-wild-fires.html#post1523455

UPDATE II - Here are some additional frequencies passed along to me by a source on the ground. These were monitored near the Possum Kingdom Lake fires:

163.1000 MHz, CSQ - Aircraft/direct
166.9375 MHz, CSQ - Air-attack to ground units/main/direct/VERY active
168.0125 MHz, CSQ - Aircraft/direct
168.0500 MHz, CSQ - Ground units/direct
168.1000 MHz, 123.0 PL - Command/operations/repeater and direct/heard from
70 miles away either east or west.
168.2000 MHz, CSQ - Ground units/direct

DoJ Buys E.F. Johnson Radios

http://www.prnewswire.com/news-releases/fbi-to-deploy-ef-johnson-project-25-radios-73710702.html

The Department of Justice Wireless Management Office has purchased an unknown number of E.F. Johnson branded P-25 radios. This report indicates these radio will be used primarily by the Federal Bureau of Investigation (FBI).

NCAA Final Four Houston

From the looks of the on-line posting, the Final Four games in Houston this past weekend were loaded with local and federal radio action. As I posted, a lot of federal law enforcement activities were planned for the weekend of the Final Four games, called by some as "Super Bowl levels" of federal planning.

The folks in and around Houston did a nice job of keeping the scanners going and even posted what they heard in a wiki article on Radio Reference:

http://wiki.radioreference.com/index.php/NCAA_Final_Four_2011

One interesting item that was noted during all the activities was some clear traffic that referenced some Department of Energy personnel involved with federal activities, possible monitoring for radiation levels. There was some activity noted on 171.2000 MHz, analog, and that is a nationwide DoE allocation. I did not see anything noted, but would not be surprised if there was some Enviromental Protection Agency (EPA) activity during the weekend as well...

Justice Department "25 Cities Project"

I've written about the DoJ "25 Cities" federal interoperability project in several Fed Files columns, but thought I would post some information here as well.

Some information on the “25 Cities Project” is available on the Internet, but much of it has not been updated in years, and may not reflect the actually current project status:

http://www.npstc.org/documents/commtech/CommTech%20Presentation%2025%20Cities.pdf

http://www.cops.usdoj.gov/files/ric/Publications/wirelesscomm_ritter.pdf

http://www.search.org/conferences/2006interop/DOJ%2025%20Cities%20Fact%20Sheets.pdf

http://www.cops.usdoj.gov/default.asp?Item=1518

Web pages and documents available on line now do not have any frequency information available in them, but confirmation from local monitoring and some have verified frequencies for these DOJ radio systems. Here is a rundown of the cities involved in the “25 Cities” project, and what the known radio systems are. Unless noted with a CTCSS tone squelch value, all these repeaters are using P-25 digital mode with a P-25 Network Access Code or NAC of N653.

ATLANTA, GA

“ATL FIO” 170.4750 MHz

BALTIMORE, MD

“BAL FIO” 170.6625 MHz

BOSTON, MA – UPDATE!

Reports from local listeners in the Boston area have reported that the “Boston FIO” channel has had very little use in recent times. The frequency was derived from a US Coast Guard channel used for natural gas terminal operations, but since the Coast Guard has started using the new P-25 “CG NET” channels, traffic on this frequency has pretty much dried up.

“BOS FIO” 165.3250 MHz

“BAPERN FIO” 167.4375 MHz, 167.9 pl–patch to BAPERN 470.7875

“BPD FIO” 158.9100 MHz

CHARLOTTE, NC

Federal agencies in the Charlotte region have access to the large Charlotte-Mecklenburgh County trunked radio system. A cache of portable 800 MHz trunked radios is provided to agencies such as DHS CBP & ICE, DEA, US Marshals Service, the Secret Service and the North Carolina Air National Guard.

CHICAGO, IL

“CG CMD C” 171.6875 MHz (CHICAGO COMMAND CENTRAL)

“CG CMD N” 170.8125 MHz (CHICAGO COMMAND NORTH)

“CG CMD S” 171.4375 MHz (CHICAGO COMMAND SOUTH)

“CG TAC C” 172.2125 MHz (CHICAGO TACTICAL CENTRAL)

“CG TAC N” 168.8875 MHz (CHICAGO TACTICAL NORTH)

“CG TAC S” 168.9125 MHz (CHICAGO TACTICAL SOUTH)

DALLAS/FORT WORTH, TX

“DFW EAST” 170.7250 MHz

“DFW WEST” 171.4375 MHz

DENVER, CO – UPDATE!

Originally the project described the Denver Metro area as being served by a pool of 800 MHz trunked radios programmed to operate on local public safety trunked systems. It now appears that the 25 Cities Project has opted to install 5 VHF P-25 repeaters located around the Denver metro area.

“DEN IO N” 170.6625 MHz (DENVER NORTH)

“DEN IO E” 171.9875 MHz (DENVER EAST)

“DEN IO C” 171.4375 MHz (DENVER CENTRAL)

“DEN IO S” 172.1875 MHz (DENVER SOUTH)

“DEN IO W” 167.2625 MHz (DENVER WEST)

DETROIT, MI - UPDATE!

In the first version of the 25 Cities Project, federal interoperability in both the Detroit area and Michigan statewide was supported through the Michigan Public Safety Communications System (MPSCS). However, new information indicates that Detroit will also be getting a stand-alone VHF repeater for federal interoperability communications.

“DET FIO” 170.5625 MHz

NORFOLK/ HAMPTON ROADS, VA

The Hampton Roads/Norfolk metropolitan area is using a single VHF repeater for federal interop use. Listeners have reported both clear and encrypted traffic on this channel, as well as weekly check-ins between the various agencies utilizing this system.

“HRN FIO” 165.7000 MHz

HONOLULU, HI – UPDATE!

In addition to having access to the local public-safety radio systems, federal agencies in Honolulu have several VHF repeaters for federal interoperability. The “LE-4” repeater is part of the NTIA nationwide interoperability channels available to both federal and non-federal agencies.

“HNL FIO” 170.6250 MHz

“HNL FIO 2” 168.9875 MHz

“LE-4” 168.1125 MHz, N68F

“HNL FIRE” 154.280 MHz, D364

HOUSTON, TX

Two VHF repeaters in the Houston area are now available for federal agency interoperability. These frequencies have also been referred to by FBI units as “L1” and “L2”, which are the channel numbers in the FBI radios that were originally testing these repeaters. The channel names are short for COMMAND and PATCH.

“HOU CMD” 170.7250 MHz

“HOU PAT” 171.4375 MHz

JACKSONVILLE, FL

A single VHF repeater serves the Jacksonville area federal interoperability needs. This repeater can be patched to other area pubic safety radio systems if needed. The US Navy facilities in Jacksonville and Mayport have control stations that access this repeater.

“JAX FIO” 171.4375 MHz

LOS ANGELES, CA – UPDATE!

Two standalone VHF P-25 repeaters in the Los Angeles area service the 25 Cities Project:

“LA FIO 1” 163.1000 MHz

“LA FIO 2” 172.4125 MHz

In addition to these federal repeaters, the Los Angeles Regional Tactical Communications System (LARTCS) has been providing interoperability between federal, state and local agencies. The federal “25 Cities” frequencies listed above do not appear to be part of the LARTCS. Here is a rundown of the LARTCS frequencies that can be patched together:

California National Guard 036.5000 MHz

HEAR 155.3400 MHz

NALEMARS 155.4750 MHz, 156.7 PL

Coast Guard Channel 23A 157.1750 MHz

LA INTEROP D 159.0300 MHz

LA INTEROP C 159.1800 MHz

Federal UHF I/O 406.8000 MHz, 156.7 PL

LACSO MA-1 483.5875 MHz, 186.2 PL

LACSO MA-2 484.0875 MHz, 186.2 PL

LACSO MA-3 483.7875 MHz, 186.2 PL

LACSO MA-4 484.1375 MHz, 186.2 PL

LACSO MA-5 484.0625 MHz, 186.2 PL

I-CALL 866.0125 MHz, 156.7 PL

CLEMARS 8 868.5125 MHz, 156.7 PL

MIAMI, FL

“MIA FIO” 171.4375 MHz

MINNEAPOLIS/ST. PAUL, MN – UPDATE!

The original rundown of cities for the 25 Cities Project did not include the Minneapolis / St. Paul Metro area. Since then, the Twin Cities have apparently been elevated to be among the 25 “high-risk” cities (Sharp Fed Files readers will note that this brings the total number of cities to 26!). Both of these repeaters were heard on the air during the Republican Convention in late 2008:

“FEDCOM MP” 170.6250 MHz

“FEDCOM SP” 171.6125 MHz

NEW ORLEANS, LA

“NOLA FIO” 171.4375 MHz

NEW YORK CITY, NY – UPDATE!

The Big Apple has three repeaters available as a federal interoperability system. The VHF repeaters are using P-25 digital and the UHF repeater is analog. Also, I was recently advised of another VHF P-25 channel that might be linked to these. The frequency 173.8625 MHz, N653 was heard active, but unknown if this is a permanent part of the NYC Federal Interoperability nets.

“NYC FIO” 167.7875 MHz

“NYC FIO2” 171.1750 MHz

“NYC FIO” 414.7500 MHz, 82.5 PL

PHILADELPHIA, PA

“PH FIO” 171.4375 MHz

PHOENIX, AZ

Federal interoperability communications in Phoenix can use multiple radio systems. One is the Inter-Agency Radio System, or IARS. This is a series of VHF and UHF repeaters tied together to link agencies with dissimilar radio bands. Federal agencies also have radio consoles and portable radios on the Phoenix Regional Wireless Network (PWRN) and the Mesa Trunked Open Arizona Network (TOPAZ).

PORTLAND, OR

Federal agencies operating in the Portland area have access to the local 800 MHz public safety trunking systems. There are talk groups allocated for the various agencies sue, as well as control stations and radios available. The federal IWN trunked system is operational in and around the Portland metro area and there is some interconnection available between the IWN P-25 trunked system and the Portland area 800 MHz radio systems.

SAN DIEGO, CA

San Diego area federal agencies can make use of the San Diego City and County 800 MHz trunked systems with control station and portable radio access. Communications dispatchers also have the ability to patch from their trunked systems to some federal “mutual aid” or “multi-agency” channels. These channels are not directly related to the “25 Cities Project”, but are part of the DHS Border Patrol P-25 network throughout southern California. Listeners have reported patches between these federal frequencies and other agencies:

“MA-4 SP” 166.9125 MHz, N245

“MA-4 PM” 167.3750 MHz, N249

“MA-4 DM” 167.5250 MHz, N247

“MA-4 MCC” 167.7250 MHz, N244

“MA-4 CP” 170.8375 MHz, N248

“MA-1 CP” 171.1750 MHz, N362

“MA-1 PM” 172.2875 MHz, N363

“MA-1 SP” 172.4500 MHz, N148

SAN FRANCISCO, CA – UPDATE!

The Bay Area recently received some upgrades to their federal interoperability system. There now appear to be 2 VHF and 2 UHF federal repeaters in both analog and P-25 digital:

“SF FED-V” 171.6127 MHz

“SF FED-U” 410.4125 MHz

“SF MA V-A” 168.7625 MHz, 167.9 pl

“SF MA U-A” 409.0125 MHz, 167.9 pl

In addition to these federal repeaters, the interoperability system includes these state and nationwide public safety channels:

“CELMARS 7” / “LLAW” 045.8600 MHz, 156.7 pl

“SF MA T-A” 483.1375 MHz, 156.7 pl

“8TAC94” 851.0125 MHz, 156.7 pl / 866.0125 MHz, 156.7 pl

SEATTLE, WA

The Seattle / Tacoma, WA metropolitan areas are served with several large 800 MHz trunked radio systems. Federal interoperability in these cities relies on control stations and portable radios that can access these trunked systems. It also involves patches to these systems as well as the federal IWN trunked system.

ST.LOUIS, MO

“STL CALL” 171.4375 MHz

“STL TAC” 171.6875 MHz

TAMPA, FL

“TAM FIO” 171.6875 MHz

WASHINGTON, DC

“DCIO 1” 159.1500 MHz, MPD Citywide Patch

“DCIO 2” 168.8750 MHz

In addition to the above interoperability channels, there were plans for three additional repeaters, but they do not appear to be on the air at the time I compiled this list. Can anyone in the DC area confirm any activity on these frequencies?

“DCIO 2 N” 173.7500 MHz

“DCIO 2 S” 168.0875 MHz

“DCIO 2 W” 166.7875 MHz

Upcoming Final Four in Houston

A recent article from the Houston Chronicle talks about expected security plans for the NCAA Final Four events:

http://www.chron.com/disp/story.mpl/sports/bk/bkc/men/7488677.html

Although it mentions that the security operations will be of "Super Bowl proportions", the NCAA events in Houston do not appear to be declared a National Security Special Event, as Super Bowls and other large pubic events have been.

According to the article, multiple federal agencies will be assisting state and local law enforcement with security, so start searching for activity. The game is scheduled for the first week in April, 2011.