1.Product Overview: + is a software-defined radio platform that supports 2TX 2RX, supports Gigabit Ethernet and Micro-SD card. 2.Features: ADC/:AD9363(Can hack to AD9361 or AD9364) 2 Transmit, 2 Receive channel Range:70MHZ~6GHZ; Ref Clock:VCTCXO 40MHZ0.5ppm; SOC:Zynq7010 FPGA:28k RAM:512M; FLASH:32M; USB:2.0support OTG; Ethernet:1000Mb; Micro-SD can use to boot; DC IN:5V +-0.5V-2A micro-USB Interface Please note that all IO levels are 1.8V. 3.1 When using the official -PlutoSDR firmware, please connect to URST-MI052. 3.2 When using + firmware and need to support Ethernet, please connect URST-MIO46 3.3 When using SD card to boot, please connect SD-H to 1V8 3.4 When using JTAG to debug, please connect JTAG# to GND 3.5 Please connect EXCLK to GND when using external reference clock input PTT key port: PTT drives optocouplers through GPIO0 (MI00), which requires an external relay or control circuit. DFU KEY: At any time, you can the DFU button and power on + again to enter the DFU mode, but you need to connect the URST jumper to MI052 Ref CLK input : You can connect a cable to input an external high- reference clock for AD9363 through the interface. The main level should not exceed 3.3V, and the EXCLK jumper needs to be connected to GND to turn off the built-in clock. Calibrate the frequency of the built-in VCTCXO: The frequency of the 40M clock can be fine-tuned by adjusting the adjustable resistor next to the VCTCXO, provided that you have a reference signal source. Micro-SD: Support booting via SD card, need to connect SD-H jumper to 1V8. Colour: black Material:Metal Package Contents: 1 * SDR Radio Receiver Transmitter 2 * data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.