RF signals

Figure 1. The United States has 16 critical infrastructure sectors, and disruptions to GPS timing could significantly impact as many as 13 of them.

October 9, 2025

RF terrestrial-based GPS packs a punch

By Mark Myslinski and John Contestabile

Cluster 3 satellites fly in formation, joining Clusters 1 and 2. (Artist's rendering: Hawkeye 360)

July 3, 2021

Trio of HawkEye 360 formation-flying microsatellites launched for RF geolocation

By Tracy Cozzens

Hawkeye 360 Pathfinder satellite trio flies in formation, seeking RF signals from Earth.(Image: UTIAS Space Flight Laboratory)

February 8, 2019

Microsatellite constellation geolocates RF signals

By Alan Cameron

December 5, 2018

New JLT Micro-Transcoder provides GPS firewall retrofit

By GPS World Staff

An Interim Armored Vehicle "Stryker" and AH-64 Apache helicopters with Battle Group Poland move to secure an area during a lethality demonstration as part of Saber Strike 18 in June 2018. (Photo: U.S. Army/Spc. Hubert D. Delany III, 22nd Mobile Public Affairs Detachment)

August 30, 2018

Aerospace wins U.S. Army contest to bring AI capabilities to soldiers

By Tracy Cozzens

Digital Editions