WBX

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Device Overview

The WBX is a wide bandwidth transceiver that provides up to 100 mW of output power and a noise figure of 5 dB. The LO's for the receive and transmit chains operate independently.

The WBX does not provided phase coherent operation, and therefore is not recommended for MIMO and Phased Array applications.

Key Features

  • Frequency Range: 50MHz - 2.2GHz
  • Versions: 40MHz / 120MHz
  • Power Output: 100mW
  • Noise Figure: 5dB
Product wbx 40.jpg
Product wbx 120.jpg

Daughterboard Properties

Features

  • 2 quadrature frontends (1 transmit, 1 receive)
    • Defaults to direct conversion
    • Can be used in low IF mode through lo_offset with uhd::tune_request_t
  • Independent receive and transmit LO's and synthesizers
    • Allows for full-duplex operation on different transmit and receive frequencies
    • Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t

Antennas

Transmit: TX/RX

Receive: RX2

  • Frontend 0: Complex baseband signal for selected antenna
  • Note: The user may set the receive antenna to be TX/RX or RX2. However, when using a WBX board in full-duplex mode, the receive antenna will always be set to RX2, regardless of the settings.

Gains

  • Transmit Gains: PGA0, Range: 0-25dB
  • Receive Gains: PGA0, Range: 0-31.5dB

Bandwidths

  • WBX: 40 MHz, RX & TX
  • WBX-120: 120 MHz, RX & TX

Sensors

  • lo_locked: boolean for LO lock state

Hardware Specifications

  • Ettus Research recommends to always use the latest stable version of UHD

WBX-40

  • Current Hardware Revision: 1
  • Minimum version of UHD required: 3.8.0

WBX-120

  • Current Hardware Revision: 1
  • Minimum version of UHD required: 3.8.0

Environmental Specifications

Operating Temperature Range

  • 0-40 °C

Operating Humidity Range

  • 10% to 90% non-condensing

USRP Compatibility

WBX-40

  • N or X Series

WBX-120

  • X Series only

Schematics

WBX

WBX Schematics

WBX FE Schematics

Key Component Datasheets

Part Number Description Schematic ID (Page)
ADA4937 Ultralow Distortion Differential ADC Driver U304 (2)
ADP3336 High Accuracy Ultralow IQ, 500 mA anyCAP® Adjustable Low Dropout Regulator U306, U308 (2); U503, U505 (4)
ADL5387 50 MHz to 2 GHz Quadrature Demodulator U307 (2)
ADL5385 50 MHz to 2200 MHz Quadrature Modulator U501 (4,5)
ADF4350 / ADF4351 Wideband Synthesizer with Integrated VCO U201 (3); U401 (5)
HMC472LP4 Attenuator U302 (2); U504 (4,5)
MGA82563 Amplifier U313 (2)
24LC024 EEPROM U202 (3); U403 (5)
GVA−84+ Amplifier U502 (4)

RF Connectors

  • The WBX daughterboard features female MCX connectors for both the TX/RX and RX2 connectors.

Certifications

RoHS

As of December 1st, 2010 all Ettus Research products are RoHS compliant unless otherwise noted. More information can be found at http://ettus.com/legal/rohs-information

Certificate of Volatility

WBX-40/WBX-120

Performance Data

Downloads

FPGA Resources

UHD Stable Binaries

UHD Source Code on Github