Can commercial software-defined radio replace JTRS? One reader points out why not

By John Keller

Posted by John Keller

I wrote a story earlier this month headlined, Air Force plan to cut its JTRS military radio program may acknowledge developments in private industry , in which I suggest that commercial radio communications developments in software defined radio ( SDR ) technology may be surpassing the U.S. military's Joint Tactical Radio System ( JTRS ), and that commercial SDR might eventually render the military's JTRS developments obsolete.

Today I received an astute e-mail from a Military & Aerospace Electronics reader that takes me to task with several solid points, which I'd like to share here. This reader's message speaks for itself, and I thank him or her for bringing these points to our attention.

There is an assumption that the commercially developed software-defined radios (SDR's) could replace the Joint Tactical Radio System (JTRS). This is not true, if the military requirements stay as they are today.

Everyone forgets that the military wants everything small, powerful, with all the bells and whistles, and oh, by the way, you have to pass the NSA security requirements and it needs to fit into this small space.

I once heard a four-star general ask, "Why is my cell phone smaller than my wallet, it is nearly free, and I can talk around the world with it?" That type of ignorance is exactly what gets programs like Joint Tactical Radio System (JTRS) cancelled.

I would like to have said (but didn't), "but sir, you are communicating through cell towers that have thousands of pounds of equipment, your cell communications are not secure, your cell phone will not operate in extreme conditions, your cannot drop your cell phone from six feet onto concrete and expect it to work, you can't drop your cell phone in a bucket of water and expect it to work afterward, you cannot select the method of communications, good luck using it in the mountains of Afghanistan, and your cell phone is not "software defined," your cell phone can't communicate to other cell phones without going to a cell tower (good luck installing cell towers in every hostile area), your cell phone puts out very, low power (not 100-plus Watts), and finally, it can't communicate to any legacy radios currently in service."

Other than that the four-star had a good point.

The government levies thousands of requirements (in the case of JTRS 40,000 requirements) and then asks why the device is so expensive, costs so much to develop, and then complains when it's late (plus, let's change the requirements continually along the way).

Just a couple points for consideration.


Subscribe

Follow me on Twitter

Easily post a comment below using your Linkedin, Twitter, Google or Facebook account.

Previous Blog Posts

Capital Hill budget deal could restore tens of billions of dollars to the Pentagon

December 17, 2013

Hacker drone story a cautionary tale about the need for unmanned vehicle data security

December 10, 2013

Lack of money for systems upgrades threatens to maintain wind-farm radar dead spots

December 3, 2013

Engineering support contracts indicate the Pentagon is sinking into the Mothball Strategy

November 26, 2013

The revenge of COTS: an ageing commercial technology base complicates military supply chain

November 19, 2013

Navy's newest destroyers evolve to fill traditional battleship roles

November 12, 2013

International suspicions of U.S. encryption technology putting defense companies in a bind

November 5, 2013

Defense industry left guessing as Army struggles forward with an unclear mission

October 29, 2013

These are tough times for the combat vehicle and vetronics industries

October 22, 2013

Is the government shutdown a harbinger of more ominous things to come?

October 15, 2013

Government shutdown reduces military contracting, increasing pressure on U.S. defense industry

October 7, 2013

Potential good news: has U.S. defense spending finally bottomed-out?

October 1, 2013

Is robotics revolution the first glimpse of a fundamental change in human evolution?

September 24, 2013

Obsolescent parts: are we enhancing military readiness or creating a hollow force?

September 17, 2013

For the high-tech warfighter, the future of electronics-laden uniforms is here

September 10, 2013

New generation of embedded computing thermal management in development at GE

September 3, 2013

Trading bus stops for credit cards: how far embedded computing has come in three decades

August 27, 2013

Unmanned vehicle industry stands at the doorstep of a fundamental transformation

August 20, 2013

AUVSI 2013, one of the biggest unmanned vehicles shows in the world, opens this week in Washington

August 13, 2013

The Washington Post, under Jeff Bezos, could lead the way for media in the 21st Century

August 6, 2013

Are costs and vulnerabilities making military leaders nervous about satellite communications?

July 30, 2013

Unmanned aircraft carrier that travels beneath the waves may be in the Navy's future

July 23, 2013

Electronic warfare programs kick into high gear with a flurry of contract activity

July 16, 2013

How vulnerable are U.S. Navy vessels to advanced anti-ship cruise missiles?

July 9, 2013

First came VHSIC, then came MIMIC, and now comes ACE to push electronics technology

July 2, 2013

The Mil & Aero Bloggers

John Keller is editor-in-chief of Military & Aerospace Electronics magazine, which provides extensive coverage and analysis of enabling electronic and optoelectronic technologies in military, space, and commercial aviation applications. A member of the Military & Aerospace Electronics staff since the magazine's founding in 1989, Mr. Keller took over as chief editor in 1995.

Ernesto Burden is the publisher of PennWell’s Aerospace & Defense Media Group, including Military & Aerospace Electronics, Avionics Intelligence and Avionics Europe.  He’s a father of four, a runner, and an avid digital media enthusiast with a deep background in the intersection of media publishing, digital technology, and social media. He can be reached at ernestob@pennwell.com and on Twitter @aero_ernesto.

Courtney E. Howard, as executive editor, enjoys writing about all things electronics and avionics in PennWell’s burgeoning Aerospace and Defense Group, which encompasses Military & Aerospace Electronics, Avionics Intelligence, the Avionics Europe conference, and much more. She’s also a self-proclaimed social-media maven, mil-aero nerd, and avid avionics geek. Connect with Courtney at Courtney@Pennwell.com, @coho on Twitter, and on LinkedIn.

Mil & Aero Magazine

February 2014
Volume 25, Issue 2
file

All Access Sponsors


Download Our Apps



iPhone

iPad

Android

Connect with Us



Newsletters

Military & Aerospace Electronics

Weekly newsletter covering technical content, breaking news and product information
SUBSCRIBE

Defense Executive

Monthly newsletter covering business news and strategic insights for executive managers
SUBSCRIBE

Embedded Computing Report

Monthly newsletter covering news on embedded computing in aerospace, defense and industrial-rugged applications
SUBSCRIBE

Unmanned Vehicles

Monthly newsletter covering news updates for designers of unmanned vehicles
SUBSCRIBE