Ettus Research USRP
The USRP is the most popular SDR device used with OpenBTS. A variety of models are available with different transport and bandwidth options as well as embedded ARM versions.
The following table describes supported USRP model combinations for GSM, UMTS, and recommended RF daughterboards. All USRP devices support GSM operation. UMTS use requires devices that support 1 Gigabit Ethernet or USB 3.0.
- See the main Ettus Research USRP page for further details.
|Ettus Research Supported Devices|
|B200||Yes||Yes||USB 3.0||Integrated||TCXO 2.0 ppm||GPSDO <1 ppb||External 10 MHz reference or GPSDO recommended|
|X300||Yes||1 or 10 Gigabit Ethernet||SBX, WBX, CBX||TCXO 2.5 ppm|
|N200||1 Gigabit Ethernet|
|USRP2||Yes||1 Gigabit Ethernet||VCXO 20 ppm||NA||External 10 MHz required|
|USRP1||No||USB 2.0||RFX, WBX*||XO 25 ppm||NA||External 52 MHz required, *WBX Rev. 1.0 only|
The BladeRF by Nuand supports GSM operation using external OpenBTS transceiver software.