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The News

LA CASA SE DEMORONA !!!.

Details

LA CASA SE DESMORONA... AÚN MÁS. Norteamérica abandona la escucha en la banda de MF.

U.S. Government Printing Office.

DEPARTMENT OF HOMELAND SECURITY
Coast Guard
[Docket No. USCG–2013–0521]
Termination of Radiotelephone Medium Frequency 2182 kHz Watchkeeping, 2187.5 kHz Digital Selective Calling Channel Guard, and 2670 kHz Broadcast.

DEPARTAMENTO DE SEGURIDAD NACIONAL
Guardacostas
[Expediente N º USCG-2013-0521]
Finalización de la guardia en radiotelefonía en media frecuenia 2182 kHz , guardia en el canal de llamada selectiva digital
2187,5 kHz, y radiodifusión en 2.670 kHz .

Welcome to Cobham

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Following the acquisition of Thrane & Thrane by Cobham plc in July 2012, a new SATCOM Strategic Business Unit, Cobham SATCOM, has been established under the Cobham Aerospace and Security Division.

 

The Thrane & Thrane AVIATOR, EXPLORER and SAILOR brands are part of Cobham SATCOM. Therefore, www.thrane.com has been closed and you have been automatically redirected to www.cobham.com/SATCOM.

 

Here you will find the same extensive information for AVIATOR, EXPLORER, SAILOR and Infrastructure products that was previously available on www.thrane.com, alongside information for the other products within Cobham SATCOM, under the SeaTel, TracStar and Omnipless brands.

 

Remember to bookmark this page for direct access to Cobham SATCOM product and business information.

- See more at: http://www.cobham.com/about-cobham/aerospace-and-security/about-us/satcom.aspx?redirect=thrane#sthash.bOb99u70.dpuf

Así... tal y como suena. Desde el 1 de agosto de este año, los norteamericanos dejan de prestar servicios de guardia/escucha en la banda de MF (onda media) en las frecuencias de 2.182 KHz para radiotelefonía y su pareja 2.187,5 KHz en DSC. Según la nota de prensa publicada por el U.S. Government Printing Office (GPO) y en la web de los guardacostas, esta decisión se debe principalmente a que nadie hacía uso de estas frecuencias desde la implantación del GMDSS y la eliminación de los "radios", y que poco menos que mantenían dichas frecuencias en servicio por nostalgia o amor al arte. Para justificar el abandono, se "agarran" a que no hay regulación, norma o ley que los obligue a mantener dichos servicios, a que sus instalaciones están más que obsoletas y además (que hay un además...) hay mejores sistemas.

El texto original es el siguiente:

 

Termination of Radiotelephone Medium Frequency (MF) 2182 kHz Watchkeeping, 2187.5 kHz DSC Guard and 2670 kHz Broadcasts.

Today the U.S. Coast Guard (USCG) published a Federal Register notice announcing that it will no longer maintain a watch on 2182 kHz, will no longer guard the Digital Selective Calling (DSC) channel 2187.5 kHz, and will no longer transmit Marine Information Broadcasts on 2670 kHz.
The minimal use of these channels by mariners for distress and safety coupled with antenna site deterioration, costly upkeep, and extensive maintenance required to support the MF system have led to a Coast Guard decision to terminate the MF services.
Mariners should either:
tune their existing high frequency (HF) radios to other Global Maritime Distress and Safety System (GMDSS) radiotelephone distress frequencies the Coast Guard guards (4125, 6215, 8291 or 12290 kHz voice);
use satellite - based communication for EPIRB and voice communications ;
or use HF radios equipped with DSC. The information in the 2670 kHz broadcasts (weather forecasts and warnings, Notice to Mariners, and urgent marine information broadcasts) will continue to be available from other broadcast sources (e.g., SafetyNet, NAVTEX, HF) and online. The Coast Guard urges mariners to use these other alternatives to the MF channels for distress calls, DSC calls and information broadcasts.

 

Pues si... las justificaciones son muy buenas y variopintas... y así empiezan las cosas a desmoronarse y desaparecer. Después dicen algunas voces que aquí en españa debería pasar lo mismo ya que no se hace caso o uso en esas bandas. Las críticas a los sistemas de comunicaciones y sus profesionales dan para escribir cientos de folios o más actualmente...foros. Pero quizás se debería reflexionar un poco en los argumentos dados para evitar caer en la "crítica al vecino".

 

Analicemos las justificaciones una por una:

  • No hay regulación, norma o ley que obligue a mantener este servicio; es casi que verdad...a ningún país se le oblliga a "instalar" una estación de comunicaciones ya sea de VHF (A1), A2 (MF) o la que sea, pero si se tienen los medios y las instalaciones, ha quedado más que demostrado a lo largo del tiempo, que un sistema más no está de "más", y la banda de MF tanto en radiotelefonía como en DSC con el GMDSS es una gran aliada.
  • Instalaciones obsoletas; recordemos que los guardacostas pertenecen al departamento de seguridad nacional y son militares, y estados unidos es un país con uno de los presupuestos en defensa más altos del mundo... así que posiblemente se lo querían cargar y eso han hecho, es muy típico y se ha repetio mil veces, se "deja morir algo" y después de mucho tiempo es más caro actualizarlo que eliminarlo, no caben más disculpas.
  • Mejores Sistemas; si es cierto y todos los sabemos, pero la radiotelefonía y el DSC son los pilares principales del GMDSS y los sistemas satelitarios no siempre son la mejor opción si es que con "mejores" se refieren los sistemas INMARSAT.
  • No se hace uso de la banda; justamente los norteamericanos tienen muchas frecuencias asignadas en MF para comunicaciones de urgencia y seguridad (avisos a los navegantes y de meteorología, control de navegación, información a los marinos, pesca, etc.), por lo que parece raro que haciendo un uso supuestamente tan extenso de esta banda, la quieran abandonar.

Con respecto al resto de las críticas y/o comentarios que ya circulan por la red... nada nuevo ya que sería una lucha de titanes muy desigual entre la capacidad y conociemientos técnicos ya demostrados, contra la endeble y triste ignorancia de los supuestos entendidos y expertos... por lo que añadir leña al fuego en vano, es tirar el dinero.

Algo si hay que tener en cuenta, y es que si en españa Abertis (ver artículo aquí) ya ha cerrado centros apoyándose en la infalible tecnología y controles remotos (sin operadores) debido a los recortes, esto podría dar una bocanada de aire para avivar más cierres de estaciones o centros, o cancelaciones de frecuencias.

 

 

 

Para más información:

USCG; http://www.uscg.mil/msib/docs/022_13_7-15-2013.pdf

U.S. Government Printing Office; http://www.gpo.gov/fdsys/pkg/FR-2013-07-15/pdf/2013-16801.pdf

 

   

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