Sunday, September 30, 2012

University of Maryland, College Park Rebanded

The University of Maryland, College Park, has rebanded its 800 MHz trunked system. All frequencies have shifted down 15 MHz. Talkgroups are unaffected.

Friday, September 28, 2012

Weekend Event

Tuesday, September 25, 2012

Northern Virginia Schools Frequencies

Now that the school year is underway, I thought I'd run through the frequencies/talkgroups being used by Northern Virginia schools. (I'll update this post with significant changes.)

Arlington - Buses use talkgroups 199, 200, 201, 202, and 203 on the Arlington trunked system. Specific uses of the talkgroups have not been determined. Washington-Lee High uses 152.4050 [ d411]. Yorktown High probably uses 152.3750, according to this license. The license also lists several other VHF simplex frequencies (159.7050, 159.9600, 160.0200, 160.1400), which are probably used for various schools in the county.

Alexandria - Buses use talkgroup 70, security uses talkgroup 72, and T.C. Williams High uses talkgroup 73 on the Alexandria trunked system. Talkgroups 82, 83, 84, and 85 are used by unknown schools. Douglas MacArthur Elementary is licensed for 456.1875, 456.2875, and 456.5375.

Fairfax - Security is on the Project 25 trunked system (talkgroups 1335, 1336, 1337, and 1338). Buses and maintenance are on the Services trunked system. Individual schools generally use VHF simplex or repeater frequencies. Some of the identified ones:

151.5950 [  77.0] Edison High
151.5950 [103.5] Hayfield Secondary
151.8950 [ d162] Willow Springs Elementary
152.2850 [103.5] Thomas Jefferson High
152.9750 [  88.5] Mark Twain Middle
153.3350 [  94.8] Key Middle
153.3350 [107.2] Marshall High
153.3650 [ d115] Hayfield Secondary
153.3650 [ d116] Robinson Secondary
153.3650 [  94.8] Annandale High
153.3650 [100.0] Lee High
153.3650 [107.2] West Springfield High

(Fairfax has dozens of frequencies licensed for schools all over the county - too numerous to list all of them here.)

Falls Church - The school system holds a license for a repeater on 152.2700.

Prince William - Bus and security talkgroups are on the county's trunked system. The county recently licensed a slew of UHF frequencies for individual schools. These are listed in the FCC database under "Prince William County Public Schools."

Manassas - Buses use a repeater on 856.6125 [136.5]. Mayfield Intermediate is licensed for 462.3125 and 462.3625.

Manassas Park - Buses use a repeater on 463.9250 [ d023]. Manassas Park Middle is licensed for 461.1250 and 464.2250.

Loudoun - Buses operate on an LTR-Net trunked system, which is monitorable, but not trackable, with scanners. (It is believed that the system can be tracked reasonably well by entering the system in a scanner as a standard LTR.) Individual schools use conventional UHF frequencies; the licenses may be found under "Loudoun County Public Schools" and "Loudoun County Schools."

Stafford - Buses use 489.1125 [156.7], which is known as "Dispatch 2," and 488.5625 [156.7], which is the "Garage" channel. The license for these frequencies indicates that they may change to MOTOTRBO in the future. Identified individual school frequencies are listed on this page. The county has licensed frequencies for almost every school.

Fredericksburg - Buses use ID 0-05-146 on the Communication Specialists LTR system. James Monroe High uses Nextel. Other identified frequencies:

464.5000 [ d411] Walker-Grant Middle (S)
464.5500 [127.3] Original Walker-Grant (S)
467.9250 [ d723] Hugh Mercer Elementary

The city is licensed for six UHF simplex frequencies; these are not in use.

Spotsylvania - Buses, maintenance, and administration use several talkgroups on the county's EDACS trunked system. Identified individual school frequencies are listed on this page. The county has several applications pending before the FCC for individual school frequencies. These are listed under the individual school names.

King George - Buses use a MOTOTRBO repeater on 151.7750. Identified individual school frequencies are listed on this page.

Fauquier - Buses and maintenance are on the county's trunked system.

Culpeper - Buses and maintenance are on the county's trunked system. Culpeper High and Eastern View High are also on this system.

Rappahannock - Buses use a repeater on 464.0500 [179.9].

Warren - Buses use a repeater on 464.1000 [  88.5].

Saturday, September 22, 2012

National Book Festival Frequencies Found

Here's what I found today at the National Book Festival:

410.3375 [ d411] Library of Congress Security
456.3125 [127.3] Golf Cart Escorts
459.9125 [173.8] Materials Distribution
462.9125 [107.2] Volunteers
463.6250 [ d431] Car/Van Transportation?
464.5125 [  85.4] Security?
466.0375 [233.6] Pavilion Managers
466.9125 [ d311] Staging
467.3125 [ d734]
DC Fire used talkgroup 2112.

Radios were from USA Radio Rentals.

Friday, September 21, 2012

Weekend Events

  • The Nationals play Friday at 7:05, Saturday at 1:05, and Sunday at 1:35.
  • The National Book Festival is Saturday from 10:00-5:30 and Sunday from 12:00-5:30 on the National Mall between 9th and 14th Sts.
  • The Redskins play Sunday at 1:00 at FedEx Field.
  • DC United plays Sunday at 7:00 at RFK Stadium.

Boeing Service Company FCC App

The Boeing Service Company, located at 14675 Lee Rd. in Chantilly, has an application pending before the FCC. The app calls for repeaters on 451.3250, 452.1250, 452.1500, 452.3375, 452.7500, and 452.8000.

Saturday, September 15, 2012

Bruce Springsteen Concert Frequencies Found

Here are frequencies found at yesterday's Bruce Springsteen concert:

461.3875 [ d152] CSC Event Staff (S)
464.7500 [233.6] CSC Event Staff (R)

461.0375 [         ] Concert Organizers? (MOTOTRBO) (S)
461.0875 [         ] Concert Organizers? (MOTOTRBO) (S)
466.0875 [         ] Concert Organizers? (MOTOTRBO) (S)
466.1375 [         ] Concert Organizers? (MOTOTRBO) (S)

DC Trunked System talkgroup:
2096 DCFD Special Events 1

Friday, September 14, 2012

Weekend Events

  • Bruce Springsteen performs Friday at 7:30 at Nationals Park.
  • Maryland plays Saturday at 12:30 at Byrd Stadium.
  • James Madison plays West Virginia Saturday at 4:30 at FedEx Field.
  • DC United plays Saturday at 7:30 at RFK Stadium.
  • The Navy-Air Force Half Marathon & Navy Five-Miler is Sunday at 7:30 AM on 15th St. near Constitution Ave.

Thursday, September 13, 2012

Loudoun Hospital Center FCC App

Loudoun Hospital Center has an application pending before the FCC. The app calls for MOTOTRBO repeaters on 461.5750 and 464.8375, and MOTOTRBO simplex on 451.3375, 452.1375, 452.3125, 456.3375, and 456.7375. Note that these frequencies will be used at two locations.

Tuesday, September 11, 2012

Georgetown Preparatory School FCC App

Georgetown Preparatory School, located at 10900 Rockville Pike in Bethesda, has an application pending before the FCC. The app calls for simplex on 452.0875, 452.1875, and 457.1875.

Friday, September 7, 2012

Weekend Events

  • The Nationals play Friday at 7:05, Saturday at 1:05, and Sunday at 1:35 at Nationals Park.
  • The Nation's Triathlon is Sunday. The event begins at 7:00 AM in West Potomac Park.

Saturday, September 1, 2012

Charles County Schools FCC App

Charles County Schools have an application pending before the FCC. The app calls for MOTOTRBO repeaters on 152.3075 and 152.9825. This system will be used for school bus transportation, and should replace 46.5400 [ 71.9].