Highlights
-- Test & Measurement World, 3/1/2010 12:00:00 AM
NI expands RF offerings
National Instruments recently introduced two PXI modules for RF signal-conditioning applications and enhanced two PXI Express 6.6-GHz modules for wireless device test.
The first signal-conditioning module, the PXI-5695, is a 50-MHz-to-8-GHz, two-channel programmable RF attenuator. NI says engineers can integrate the PXI-5695 with the company’s RF vector signal generators to control signal power with up to 60 dB of total attenuation and a typical voltage standing wave ratio of 1.3:1.
The second signal-conditioning module, the PXI-5691, is a 50-MHz-to-8-GHz, two-channel programmable RF amplifier that can function as a pre-amplifier and as a power amplifier. The amplifier offers 20 dBm of maximum output power, up to 60 dB of total gain, 0.5 dB of gain resolution, a +31-dBm third-order intercept point, and 5-dB noise figures; it can be integrated with NI’s RF vector signal generators to increase maximum power and can be integrated with the company’s vector signal analyzers to measure low-level signals.
On the PXI Express front, NI says its enhanced PXIe-5663E vector signal analyzer and PXIe-5673E vector signal generator improve automated test times for WLAN, WiMAX, and GSM/EDGE/WCDMA devices. A new RF list mode feature enables engineers to configure the modules to rapidly switch through a list of RF settings at deterministic timing intervals, and a new wide-loop bandwidth mode permits the instruments to achieve typical tuning times of 300 and 400 µs for frequencies between 800 and 1950 MHz. www.ni.com.
Agilent updates Acqiris software
Agilent Technologies has unveiled Acqiris Software Release 4.0 for its Acqiris digitizers, which are available in PCI, PXI, CompactPCI, and VME formats. The digitizers have acquisition rates ranging from 500 Msamples/s to 8 Gsamples/s with resolutions of 8, 10, or 12 bits.
In addition to supporting the 32-bit and 64-bit versions of Windows 7, Release 4.0 supports the XP64, Vista64, and Linux 64-bit operating systems. The software provides drivers for Windows, LabView RT, Linux, and VxWorks, and it includes application code examples for Matlab, C/C++, VisualBasic.NET, LabView, and LabWindows/CVI. Agilent says users can port code developed in 32-bit environments to the 64-bit operating systems. www.agilent.com.
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