Milcom Monitoring Post Profiles
- What are Emergency Action Messages (EAM)?
- US Coast Guard Asset Guide - Update 28 Feb 2018
- COTHEN Net - Update 30 April 2018
- Ron Perron Mil/Gov Call Sign - Update 1 June 2018
- UFO Milsat Program
- Fleetsatcom System
- UHF 225-380 MHz Milcom Spectrum Holes
- Civilian Air Cargo/Airline/Military Call Signs
- Intl HF Aero Civ/Gov/Mil Frequency List
- USN Aircraft Modex Numbers
- University of Twente Wide Band WebSDR Netherlands
- U.S. Military ALE Addresses
- DoD Air Refueling Frequencies - Update 15 Jul 2016
- Monitoring the Civil Air Patrol Auxiliary Update 10 Sep 2016
- The Milcom MT Files (1998-2013) Articles Index
- The Spectrum Monitor e-Zine Milcom Column Index
Wednesday, October 22, 2014
VA Plans to Build Nationwide High-Frequency Radio Network to Communicate During Emergencies
From the NextGov.com website and Jack Metcalfe
The Department of Veterans Affairs plans to build a nationwide high-frequency radio network to connect its medical facilities in case of an emergency that knocks out other forms of communications -- applying century-old technology to current needs.
VA said in a contracting notice Tuesday it intends to award a five-year, fixed-price indefinite-delivery, indefinite-quantity contract for the fully functional "turnkey" Emergency High Frequency Radio Network.
VA plans to issue a formal request for proposals by Oct. 31.
The network will include an undefined number of high-powered “backbone” stations equipped with 200-watt transmitters designed to receive and automatically relay communications from 125-watt stations located at approximately 200 Veterans Health Administration facilities, VA said.
The network would provide emergency two-way radio communication and links to national wired, cellular and IP telephone networks enabling radio-to-telephone communications, according to the agency.
High-frequency radios operate in the three-to-30-MHz bandwidth and can transmit signals for hundreds or thousands of miles as the signals are refracted off the ionosphere. Changes in ionspheric conditions require HF radios to be periodically retuned, done automatically with a technology known as Automatic Link Establishment built into the radios. VA has specified ALE radios for its HF network.
Though outmoded by satellite and internet communications, HF networks still serve as an emergency backup for federal agencies, including the Air Force for communications with Air Force One as well as its transport, tanker and bomber fleets.
The Department of Homeland Security operates a high-frequency network called SHARES, which provides additional capabilities for users with a national security and emergency-preparedness mission to communicate when landline and cellular communications are unavailable.
The Federal Emergency Management Agency and the Army National Guard also operate national HF networks. The Centers for Disease Control and Prevention has set up the National Public Health Radio Network as a communications back up in all 50 states.
Bernie Skoch, a retired Air Force general, consultant and amateur radio operator, said high-frequency remains the only reliable long-distance communications capability that depends entirely on terminal systems for end-to-end communications.
“There is no copper, no fiber, no space segment and very thin network management requirements” -- just radios, antennas and the ether, he said.
That independence from complex infrastructures, coupled with relatively inexpensive portable and mobile packages, makes it ideal for command and control, disaster and continuity-of-operations systems, Skoch said.
Blog Editor Comment (if you don't like editorials move on): Unbelievable! Another HF emergency net by a government that is bloated with them. So which HF emergency net does the government bureaucrat operate on when the balloon goes up?
Answer: Doesn’t make any difference they all do nothing anyway during emergencies, just check-ins and signal checks and asking hams if they can handle their H&W traffic. This is just another waste of my tax money by a government agency that already has a bloated budget and has enough problems providing services to this nation's vets.