for Is A Peripheral Capable Of mitting Or Receiving Radio Signals From 1mhz To 6ghz. for Is An Open-Source Hardware Platform That Can Be Used As A Usb Peripheral Or Programmed For Stand-Alone Operation, Designed For Testing And Developing Modern And Next-Generation Radio Technologies. 8-Bit Sample Quadrature (8-Bit I And 8-Bit Q); Compatible With for Radio, SDR , And More; Software Configurable Rx And Tx Gain Filters And Baseband; Software Control Power Supply Antenna Port (50ma At 3.3 V); SMA Female Antenna Connector; Sma Female Clock Input And Output Synchronization; Convenient Programming Button; Pin Header For Internal Expansion; Operating Frequency From 1mhz To 6GHZ; ceiver Half-Duplex; Up To 20 Million Samples Per Second; High-Speed USB 2.0; USB-Powered; Open Source Hardware; note: Depending on the batch, the appearance, color, and printing of the product , which does not affect use. Description: for One hardware mainly consists of the following parts 1. RFFC5072: The mixer provides local oscillator from 80MHz to 4200MHz 2. MAX2837: 2.3GHz to 2.7GHz wireless broadband RF ceiver 3. MAX5864: ADC/, 22MHZ sampling rate 8bit 4. LPC4320/4330: ARM processor clocked at 204MHZ 5. Si5351B: I2C programmable arbitrary CMOS clock generator, providing 40MHZ 50MHZ and sampling clock by 800MHz frequency division 6. -81563:0.1-6GHz 3V14 dBm amplifier 7. SKY13317:20 MHZ-6.0 GHz RF single pole three throw (SP3T) switch 8. SKY13350: 0.01-6.0 GHz RF single pole double throw (SPDT) switch Taking the receiving process as an example, the process after the signal enters from the antenna is as follows 1. The RF switch determines whether to amplify through a 14dB amplifier 2. High-pass or low-pass filter the signal through the image suppression filter 3. The signal is mixed by the RFFC5072 chip to a fixed intermediate frequency of 2.6GHz. 4. The latest firmware su