Upgrades of for One R9: MAX2837 is replaced by MAX2839. Si5351C is replaced by Si5351A with additional clock distribution. A series diode is added to the antenna port power supply. One Description: One is a peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz.Designed to enable test and development of modern and generation radio technologies, One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation.Attention:1. the latest firmware is supported, and the current firmware is firmware v1.7.0 by default.2. for certain functionality, like the world map, GPS simulator, and others, you need to prepare a PortaPack H2 and a FAT32 formatted -SD card over 1G.for One Specifications:1 MHz to 6 GHz operating frequencyHalf-duplex transceiverUp to 20 million samples per second8-bit quadrature samples (8-bit I and 8-bit Q)For Radio, SDR, and the likeSoftware-configurable RX and TX gain and baseband filterSoftware-controlled antenna port power (50 mA at 3.3 V)SMA female antenna connectorSMA female clock input and output for synchronizationConvenient buttons for programmingInternal pin headers for expansionHi-Speed USB 2.0USB-poweredOpen source hardwarefor MHz to 6 GHz SDR platform development boardNote:Portapack H2 is not included.Material: Metal+Plasticcolour: blackPackage Contents:1 x 20DB 50MHz-6GHz LNA1 x SMA male-male cable1 x LG USB cable1 x 5DBi 40MHz-860MHz antenna1 x TCXO module1 x 8DBi 2.4G/5/5.8GHz antenna1 x 40MHz-6GHz telescopic antenna1 x 12DBi 700MHz-2700MHz antenna1 x 35DBi 700MHz-2700MHz antenna1 x for One + shellOnly 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.