The USRP-SN321 is a network software-defined radio that provides reliability and fault tolerance for deployments in large-scale and distributed wireless systems. This is a high-performance SDR that uses a unique RF design to provide 2 RX and 2 TX lanes in a half-width RU size. The flexible synchronization architecture supports a 10 MHz clock reference and PPS time reference to external TX LO and RX LO inputs for a phase-coherent MIMO test platform.

The USRP-SN321 leverages UHD’s latest software development to simplify the control and management of multiple devices on the network, with unique remote management task capabilities such as debugging, updating software, rebooting, resetting to factory state, and monitoring system operation.

Key Features

3 MHz to 6 GHz extended frequency range

Up to 200 MHz instantaneous bandwidth per channel

2RX, 2TX

Xilinx Zynq-7100 SoC

Dual-core ARM Cortex-A9 800 MHz CPU

1 QSFP+ port

2 SFP+ ports (1 Gigabit Ethernet, 10 Gigabit Ethernet, Aurora)

RJ45(1GbE)

External clock reference and PPS time reference

External RX LO, TX LO input and output ports

1 USB host port of Type A

1 micro-USB port (serial console, JTAG)

USRP hardware driver (UHD3.15.0.0 or later) and open-source software API version

RF network-on-chip (RFNoC™) FPGA development framework

Model

USRP-SN321

1. Receive
Number of channels

2

Gain range

-16~34dB

Gain stepping

1dB

Maximum input power

-15dBm

Filter bank

450 ~ 760MHz

760 ~ 1100MHz

1100 ~ 1410MHz

1410 ~ 2050MHz

2050 ~ 3000MHz

3000 ~ 4500MHz

4500 ~ 6000MHz

Frequency range of external local oscillator input

0.45~6GHz

Tuning time

245μs

TX/RX switching time

750μs

2. Launch
Number of channels

2

Gain range

-30~25dB

Gain stepping

1dB

Maximum output power

20dBm

Filter bank

450 ~ 650MHz

650 ~ 1000MHz

1000 ~ 1350MHz

1350 ~ 1900MHz

1900 ~ 3000MHz

3000 ~ 4100MHz

4100 ~ 6000MHz

Frequency range of external local oscillator output

0.45~6GHz

Tuning time

245μs

TX/RX switching time

750μs

3. Converter and GPSDO Performance
Sampling rate

200, 245.76, 250(MS/s)

ADC resolution

14bits

DAC resolution

16bits

Unlocked GPSDO frequency stability

0.1ppm

GPSDO PPS relative UTC accuracy

<8ns

GPSDO latency stability

<+/-50μs

3hours

25°C

4. Power
DC voltage input

12V,7A

Power consumption

60~80W

5. Physical Properties
Size

38×22×4.5 cm

Weight

3.4kg

6. Operating Environment Requirements
Stable working range

0~50°C

Storage temperature range

-40~70°C

Main Machine

Module No. Item. Description
USRP-SN321 Universal Software Radio Peripheral Frequency: 3MHz to 6GHz; DC voltage input: 12V,7A

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