USRP-2921 Specifications

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Last Modified: May 17, 2017

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

Typical specifications describe the expected performance met by a majority of the models.
Nominal specifications describe parameters and attributes that may be useful in operation.

Specifications are Characteristics unless otherwise noted.

Conditions

Specifications are valid at 25 °C unless otherwise noted.

Transmitter

Frequency range

2.4 GHz to 2.5 GHz and 4.9 GHz to 5.9 GHz

Frequency step

<1 kHz

Maximum output power (P_out)
2.4 GHz to 2.5 GHz	50 mW to 100 mW (17 dBm to 20 dBm)
4.9 GHz to 5.9 GHz	50 mW to 100 mW (17 dBm to 20 dBm)

Gain range^[1]

0 dB to 35 dB

Gain step

0.5 dB

Frequency accuracy^[2]

2.5 ppm

Maximum instantaneous real-time bandwidth^[3]
16-bit sample width	24 MHz
8-bit sample width	48 MHz

Maximum I/Q sample rate^[4]
16-bit sample width	25 MS/s
8-bit sample width	50 MS/s

Digital-to-analog converter (DAC)

2 channels, 400 MS/s, 16 bit

DAC spurious-free dynamic range (sFDR)

80 dB

Receiver

Frequency range

2.4 GHz to 2.5 GHz and 4.9 GHz to 5.9 GHz

Frequency step

<1 kHz

Gain range^[5]

0 dB to 92.5 dB

Gain step

2 dB

Maximum input power (P_in)

-15 dBm

Noise figure

5 dB to 7 dB

Frequency accuracy^[6]

2.5 ppm

Maximum instantaneous real-time bandwidth^[7]
16-bit sample width	19 MHz
8-bit sample width	36 MHz

Maximum I/Q sample rate^[8]
16-bit sample width	25 MS/s
8-bit sample width	50 MS/s

Analog-to-digital converter (ADC)

2 channels, 100 MS/s, 14 bit

ADC sFDR

88 dB

Half-Duplex Device

The USRP-2921 is a half-duplex device. The USRP-2921 cannot transmit and receive signals at the same time.

Power

Caution

The protection provided by this product may be impaired if it is used in a manner not described in this document.

Total power, typical operation
Typical	12 W to 15 W
Maximum	18 W

Power requirement

Accepts a 6 V, 3 A external DC power connector

Note

You must use either the power supply provided in the shipping kit, or another UL listed ITE power supply marked LPS, with the USRP-2921.

Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

Physical dimensions
(L × W × H)	15.875 cm × 4.826 cm × 21.209 cm (6.25 in. × 1.9 in. × 8.35 in.)
Weight	1.193 kg (2.63 lb)

Environment

Maximum altitude	2,000 m (800 mbar) (at 25 °C ambient temperature)
Pollution Degree	2

Indoor use only.

Operating Environment

Operating temperature	23 °C ± 5 °C
Relative humidity range	10% to 90%, noncondensing (tested in accordance with IEC 60068-2-56)

Compliance and Certifications

Safety

This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

IEC 61010-1, EN 61010-1
UL 61010-1, CSA C22.2 No. 61010-1

Note

For UL and other safety certifications, refer to the product label or the Online Product Certification section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
EN 55022 (CISPR 22): Class A emissions
EN 55024 (CISPR 24): Immunity
AS/NZS CISPR 11: Group 1, Class A emissions
AS/NZS CISPR 22: Class A emissions
FCC 47 CFR Part 15B: Class A emissions
ICES-001: Class A emissions

Note

In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended for use only in heavy-industrial locations.

Note

Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.

Note

For EMC declarations, certifications, and additional information, refer to the Online Product Certification section.

CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:

2014/35/EU; Low-Voltage Directive (safety)
2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Online Product Certification

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Minimize Our Environmental Impact web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers

At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.

电子信息产品污染控制管理办法（中国RoHS）

中国客户

National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息，请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

¹ The output power resulting from the gain setting varies over the frequency band and among devices.
² Frequency accuracy is based on temperature-compensated crystal oscillator (TCXO) vendor specifications and is not measured. Alternatively, you can incorporate an external reference source to provide a more precise frequency Reference Clock and to achieve better frequency accuracy.
³ Instantaneous bandwidth depends on many factors including, but not limited to, network configuration and host computer performance. Actual data throughput may be chipset dependent.
⁴ I/Q sample rate depends on many factors including, but not limited to, network configuration and host computer performance. Actual data throughput may be chipset dependent.
⁵ The received signal amplitude resulting from the gain setting varies over the frequency band and among devices.
⁶ Frequency accuracy is based on temperature-compensated crystal oscillator (TCXO) vendor specifications and is not measured. Alternatively, you can incorporate an external reference source to provide a more precise frequency Reference Clock and to achieve better frequency accuracy.
⁷ Instantaneous bandwidth depends on many factors including, but not limited to, network configuration and host computer performance. Actual data throughput may be chipset dependent.
⁸ I/Q sample rate depends on many factors including, but not limited to, network configuration and host computer performance. Actual data throughput may be chipset dependent.

Table Of Contents

Definitions

Conditions

Transmitter

Receiver

Half-Duplex Device

Power

Physical Characteristics

Environment

Operating Environment

Compliance and Certifications

Safety

Electromagnetic Compatibility

CE Compliance

Online Product Certification

Environmental Management

Waste Electrical and Electronic Equipment (WEEE)

电子信息产品污染控制管理办法（中国RoHS）

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