ettus USRP-2900, Начало работы

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Why Doesn't the USRP Device Appear in the NI-USRP Configuration
Utility?
1. Verify that the latest NI-USRP drivers are installed by running NI Update
Service, available from the Start menu at
Start
>
All Programs
>
National
Instruments
>
NI Update Service
.
2. Check the LED status to ensure the device is powered correctly. If the LED is
blue, the device is powered correctly using USB. If the LED is orange, the
device is powered correctly using external power.
3. Connect the device to a different USB port of the host computer, if one is
available.
4. Ensure that the latest drivers are installed for your USB controller.
Direct Connections to the USRP-2900/2901
The USRP-2900/2901 is an RF instrument that is sensitive to ESD and transients.
Ensure you take the following precautions when making direct connections to the
USRP-2900/2901 to avoid damaging the device.
Caution
Apply external signals only while the USRP-2900/2901 is powered
on. Applying external signals while the device is powered off may cause
damage.
■
Ensure you are properly grounded when manipulating cables or antennas
connected to the USRP-2900/2901 TX1 RX 1 or RX2 connector.
■
If you are using nonisolated devices, such as a nonisolated RF antenna,
ensure the devices are maintained in a static-free environment.
■
If you are using an active device, such as a preamplifier or switch routed to
the USRP-2900/2901 TX1 RX 1 or RX2 connector, ensure that the device cannot
generate signal transients greater than the RF and DC specifications of the
USRP-2900/2901 TX1 RX 1 or RX2 connector.
© National Instruments
13
USRP-2900/2901 Getting Started