Software Defined Radio, 1MHz to 6GHz Software Defined Radio Radio Transceivers Software Defined Radio SDR, External Tv Tuners ACCURATE TUNING: This USB SDR transceiver uses PPM calibration for more accurate tuning and stable performance, making it very easy to use. You can use it with confidence. MAIN FUNCTION: Designed to support the testing and development technology, it is an open source hardware that can be used as a USB peripheral or programmed for independent operation. COMPACT AND CONVENIENT: This portable radio transceiver is small in size, lightweight, and easy to install and convenient to use. Spec: Item Type: Software Defined Radio Material: PCB Specifications: 1 MHz to 6 GHz operating frequency Half duplex transceiver Up to 20 million samples per second 8 bit orthogonal samples (8 bit I and 8 bit Q) Suitable for GNU Radio, for SDR #, and for example Software configurable RX and gains and baseband filters Software controlled antenna port power supply (50 mA at 3.3 V) SMA female antenna connector SMA master clock input and output for synchronization Convenient Programming Button: Internal Pin Expansion High speed USB 2.0 USB powered Open source hardware For One 1 MHz to 6 GHz for SDR Software Defined Radio Development Board High speed USB 2.0 USB powered How to Use: Upgrade for One R9: For MAXIMUM2837 was replaced by for MAXIMUM2839. For Si5351C has been replaced by for Si5351A with additional clock allocation. Add a series diode to the antenna port power supply. packing list: 1 x Development Board 1 x Antenna 1 x USB Cable 1 x Washer Ring 1 x Washer 1 x Nut Notice: 1. Supports the latest firmware, and the current firmware defaults to for Mayhem firmware v1.7.3. 2. For certain functions such as world maps, GPS simulators, etc., you need to prepare Micro storage cards(not included) in for H2 and 1G or FAT32 format.