News Update

BAE unveils world’s smallest anti-jamming military GPS

Dec 2021 | No Comment

BAE Systems has developed the world’s smallest, lightest, and most power-efficient military M-Code GPS receiver. About the size of a postage stamp, the low-size, weight, and power (SWAP) MicroGRAMTM-M GPS receiver can be installed in handheld devices and drones, and is resistant to jamming and spoofing.

Though it’s only been around in a practical sense for less than 30 years, GPS has rapidly grown into a core military technology. It not only guides ships and planes, but also helps target missiles and even shells. It can pinpoint the location of individual soldiers and smooths the inherent chaos of logistical supply lines in addition to many other applications.

However, these improvements have come at the cost of sparking an electronic arms race as hostile powers strive to find ways to jam, spoof, or generally tamper with GPS systems to render them unreliable or even useless.

To prevent this, the western military forces have adopted the M-Code (Military-Code) signal. There aren’t many details about M-Code that have been released to the public, but there are some general features that we know.

M-Code uses a PseudoRandom Noise (PRN) code transmitted at 5.115 MHz, though the length of this code is classified

Measuring only 1.0 x 1.25 x 0.275 in (2.5 x 3.1 x 0.698 cm), the MicroGRAM-M is designed to be physically capable of being swapped out with its predecessor in GPS-equipped devices.

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