ITS: The Nation’s Spectrum and Communications Lab
Our mission is to ADVANCE innovation in communications technologies, INFORM spectrum and communications policy for the benefit of all stakeholders, and INVESTIGATE our Nation’s most pressing telecommunications challenges through research that employees are proud to deliver. Learn more about ITS on our YouTube Channel or read about our research programs in the Technical Progress Report.
August 18, 2020
Presentations from the ISART 2020, the International
Symposium on Advanced Radio Technologies: 5G Spectrum and a
Zero-Trust Network are now available on the ...
April 2, 2020
The Open, Public, Electronic, and Necessary (OPEN) Government
Data Act, signed into law on January 14, 2019, requires federal
agencies to publish their information online as open data, using
May 9, 2019
ITS has a long history of leadership in air-to-ground
propagation model development within the International
Telecommunications Union – Radiocommunication Sector’s (ITU-R)
Study Group 3 – Radiowave Propagation (and its...
March 10, 2019
How can we get more use out of the radio spectrum? One way is by
sharing radio bands between users who have never shared before.
Consider radio frequencies near 3.5 GHz. Until recently, that part
of the spectrum was...
November 26, 2018
Behind every initiative to share spectrum are models of
how radio waves in a particular band propagate through different
environments. How far will a signal travel before it becomes too
faint to be useful or...
This Month in ITS History
June 1961: First Topside Sounder Rocket Launched
At 11:17 PM on June 24, 1961, NASA launched a Javelin missile from Wallops Island, VA. The Javelin contained an ionospheric sounder created by the Central Radio Propagation Laboratory (CRPL). The sounder used radio waves to examine the atmosphere it was passing through. The sounder acted like a radar, measuring the width and density of the ionosphere, the plasma rich outer layer of the atmosphere. By measuring the ionosphere CRPL hoped to better understand it, and specifically its impact on radio transmission. At certain frequencies, radio waves bounce off the ionosphere and travel further than they would in a straight line. Short wave radio waves can travel around the world in this fashion. The Javelin launch was CRPL’s first foray into space flight. The project was successful, and it spawned many more. By 1964, CRPL had helped launch a sounding satellite known as TOPSI and assisted in the launch of the Canadian satellite Allouette. These satellites acted much like the Javelin rocket had, but they could sound the ionosphere from above. Today ITS continues the work of CRPL in investigating radio propagation. ITS also continues to work with NASA and other agencies to improve the outcomes of space flight.