GAO Report—GPS Modernization: DOD Continuing to Develop New Jam-Resistant Capability, But Widespread Use Remains Years Away [GAO-21-145]
GPS Modernization: DOD Continuing to Develop New Jam-Resistant Capability, But Widespread Use Remains Years Away [GAO-21-145] Published: Jan 19, 2021; Publicly Released: Jan 19, 2021. View the full GAO report, 55 pages > Fast Facts GPS may seem like everyday technology, but it depends on military systems that continue to evolve to meet defense needs. The Department of Defense has worked for decades to develop a jam-resistant GPS capability for the military called M-code. This requires satellites to broadcast the M-code signal, control systems on the ground, and equipment that can receive it. Modernized satellites are in space but receiver [ READ MORE ]