Red Pitaya

"Red Pitaya is closed-source hardware project intended to be alternative for many expensive laboratory measurement and control instruments.

The core selling point is inclusion of 2x 125MS/s RF input and 2x 125MS/s RF outputs, with 50MHz analogue bandwidth and 14 bit analog-to-digital and digital-to-analog converters. The default software of Red Pitaya includes oscilloscope, spectrum analyzer, signal generator, LCR meter, and 50MHz 2x2 MIMO PID controller. It can be re-programmed to become other devices, as all the IO ports are connected to a common field-programmable gate array (FPGA). There are also auxiliary ADC (250kS/s) and digital IO. ^{[1] [2]}
It has three USB 2.0 ports, Wifi, Ethernet connector. Internally, it uses Linux as operating system. The mass storage device for the operating system is a micro-SD card.

Due to the wide bandwidth of the ADC and DAC, the Red Pitaya can be used as a software defined radio receiver and transmitter and in other radio frequency applications. ^[3] HAMLAB, a fully featured SDR HF tranceiver with an output power of 10 W based on the Red Pitaya board is expected to be released in the amateur radio market in October 2016. ^[4]

Although the software (including HDL source code) for this project is made freely available, the device is not a fully Open Source Hardware project, because the device's electrical schematics are not made openly available."

https://en.wikipedia.org/wiki/Red_Pitaya_%28hardware%29

https://redpitaya.com/

https://archive.fosdem.org/2016/schedule/event/redpitaya/

http://pavel-demin.github.io/red-pitaya-notes/sdr-transceiver/

http://pavel-demin.github.io/red-pitaya-notes/