The USRP N is a networked software defined radio that provides reliability and fault-tolerance for deployment in large scale and distributed wireless systems. The USRP N leverages recent software developments in UHD to simplify control and management of multiple devices over the network with the unique capability to remotely administrate tasks such as debugging, updating software, rebooting, resetting to factory state, and monitoring system health. The sampling rate must be an integer decimation rate of the MCR. Ideally, this decimation factor should be an even number. The valid decimation rates are between 1 and

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Designed for low-cost experimentation, it combines a fully integrated direct conversion transceiver providing up to 56MHz of real-time bandwidth, an open and reprogrammable Spartan6 FPGA, and fast and convenient bus-powered SuperSpeed USB 3.

The RF frontend has individually tunable receive and transmit chains. On the B and B mini, there is one transmit and one receive RF frontend. All frontends have individual analog gain controls. The receive frontends have 76 dB of available gain; and the transmit frontends have Gain settings are application specific, but it is recommended that users consider using at least half of the available gain to get reasonable dynamic range. Generally, when requesting any possible master clock rate, UHD will automatically configure the analog filters to avoid any aliasing RX or out-of-band emissions whilst letting through the cleanest possible signal.

If you, however, happen to have a very strong interferer within half the master clock rate of your RX LO frequency, you might want to reduce this analog bandwidth. Detailed test is pending. In order to ensure compliance with EU certifications for radio equipment, a ferrite bead included in kits with NI part number and should be affixed onto the GPIO cable, if in use.

This is achieved by opening the snap-on ferrite bead and enclosing it around the GPIO cable s. In addition to the part numbers listed above, these ferrite beads can be sourced through Fair-Rite using part number FPGA Resources.

UHD Stable Binaries. If you have questions that are not answered in this document, please contact us - info ettus. There are several things to consider. First, the USB 2. The performance and throughput of USB 3. In Linux, the command lspci will show the USB controller on the system. The experience may vary across various controllers. Generally speaking, bus-power is ideal for SISO operation. You should not attempt to run the device on bus-power if a GPS-disciplined oscillator is installed.

The sample rates shown are aggregate sample rates on the USB 3. However, USB 3. For support, please sign up and contact the OpenBTS mailing list. Other product and company names listed are trademarks or trade names of their respective companies.

Jump to: navigation , search. Category : Hardware Resources. Navigation menu Personal tools Namespaces Page Discussion. This page was last modified on 13 April , at All Rights Reserved Other product and company names listed are trademarks or trade names of their respective companies. Analog Devices AD Xilinx Spartan-6 Product Page.


File:USRP N310 N300 DB Schematic.pdf



[USRP-users] USRP B210 schematic


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