Estonian startup Amungo Navigation has launched their NUT2NT+, an open source four-channel GNSS receiver designed around NTLab’s NT1045 chip for precision satellite-based positioning. With the right antennas, the board is capable of receiving any number of navigation signals — including GPS, GLONASS, Galileo, BeiDou, IRNSS, and QZSS. Amungo claims that with access to multiple satellite systems, position resolution can be accurate down to the centimeter.
“NUT2NT+ hardware is open source, as is the software — giving the user the ability to set a receiver’s modes and frequencies, to capture all signals continuously, and to have complete control over primary processing features.”
Beyond the NT1045 IC, the board is equipped with a great feature set, including fast processing via a Lattice ECP5 FPGA (12K LUTs/28 DSP blocks), a single USB 3.1 Type-C port, 10MHz TCXO clock, 2X RF inputs (-5dB referred noise floor), 2-bit ADC resolution up to 99MHz, and a samples transfer rate (continuous stream) from 10 to 50Mbps.
Besides the GNSS standards, the board receives all GNSS bands as well, such as L1/L2/L3/L5, G1/G2/G5, B1/B2, E1/E5, and subsequent future bands. The NUT2NT+ also packs a software-controllable power injector circuit for antennas with a DC short like a dipole or PIFA.
The board is currently being crowdfunded on Crowd Supply and comes with optional enclosures and antennas, along with a repository of open source software for spectrum and GNSS signal monitoring, controller firmware, FPGA code, and more on the company’s GitHub page. Those interested in getting the NUT2NT+ can pledge $320 and up, and wait for it to arrive this September.