Technical FAQ

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How do I get started?

For the UHD Getting Started documentation please refer to: UHD Manual.

For the GNU Radio Getting Started documentation please refer to:

Do you have antennas to match your daughterboards?

Yes, we have antennas for nearly every daughterboard which we sell. Please see the ordering page for pictures and specifications at the following links:

What operating systems are supported?

The UHD (USRP Hardware Driver) supports all Ettus Research hardware on the following operating systems:

  • Linux (any distribution should work, but primarily Ubuntu 14.04, 16.04, Fedora 24, Fedora 25, CentOS 7)
  • Mac OS X 10.10, 10.11, 10.12
  • Microsoft Windows 7, 8 ,10

Primary development for UHD is done on Linux.

Are design files available with the boards that may aid in further prototyping?

Yes. Schematics for select USRP devices and daughterboards are available. You can find them here:

Are there any license requirement for the transmit or transceive daughterboards?

The USRP hardware is sold as test equipment. If you choose to use your USRP hardware and daughterboards to transmit using an antenna, it is your responsibility to make sure you are in compliance with all laws for the country, frequency and power levels in which the device is used. Additionally, some countries regulate reception in certain frequency bands. Again, it is the responsibility of the user to maintain compliance with all local laws and regulations.

Are all daughterboards compatible with all USRP motherboards?

All daughterboards are compatible with all USRP models except for the first 500 USRP1 software defined radios manufactured in 2005. At that time all daughterboards had an onboard local oscillator so the USRP1 did not provide a clock signal required by most of the current daughterboards. The only daughterboards currently compatible with the first 500 USRP1 are the BasicRX, BasicTX, LFRX and LFTX as they do not require a clock signal.

To identify if you have one of the first 500 USRP1 devices, please refer to the serial number as it will be between 1 and 500.

Although unsupported, a workaround exists and can be accessed on the following page: USRP Serial Below 500 on GNU Radio.