Main Content

Radio Management

Configure radio using block and System object™ settings

Before transmitting and receiving radio signals, first apply radio hardware parameters and tune radio properties.


setsdruipSet IP address for USRP N2xx or X3xx series radio
infoUSRP radio information
referenceLockedStatusLock status of USRP radio to 10 MHz clock signal
gpsLockedStatusLock status of GPSDO to GPS constellation


comm.SDRuReceiverReceive data from USRP device
comm.SDRuTransmitter Send data to USRP device


SDRu ReceiverReceive data from USRP device
SDRu TransmitterSend data to USRP device


USRP Radio Configuration

Determine which USRP™ radio products to use.

Single Channel Input and Output Operations

Single input single output (SISO) operations use one transceiver only.

Multiple Channel Input and Output Operations

Multiple Input Multiple Output (MIMO) operations use multiple transceiver chains.

Transmit and Receive Using External Clock

An external clock enables you to synchronize the radio with an external clock generator.

Check USRP Radio Connection

Check radio connection to SDRu blocks and System objects.

Run in Offline Mode

Running simulations when no radio is connected.

Query and Set IP Addresses

You can query and set IP address of connected radios.

Detect Underruns and Overruns

To detect underruns and overruns, use the lost sample indicator.

Burst-Mode Buffering

To achieve real time performance, enable burst mode.

Data Frame Lengths

Set data frame length in receiver blocks or receiver System objects.

Apply Conditional Execution

To determine whether you receive valid data from the radio hardware, apply conditional execution.

Change Transport Data Rate

Set the transport data rate in blocks or System objects.

Desired Versus Actual Parameter Values

Actual parameter values can vary from your desired setting.

Supported Data Types

Supported data types for SDRu blocks and System objects.


Common Problems and Fixes

Describes the most common errors encountered with Communications Toolbox™ Support Package for USRP Radio and how to fix them.